python-stdnum branch master updated. 2.2-1-g5d4ad17

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Subject: python-stdnum branch master updated. 2.2-1-g5d4ad17
Date: Sun, 3 May 2026 14:32:29 +0200 (CEST)
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https://arthurdejong.org/git/python-stdnum/commit/?id=5d4ad17cae8abeab21f446b5569f85d185566330

commit 5d4ad17cae8abeab21f446b5569f85d185566330
Author: Arthur de Jong <arthur@arthurdejong.org>
Date:   Sun May 3 14:29:13 2026 +0200

    Update LGPL to latest 2.1 version
    
    This mostly replaces the FSF physical address with their web site.

diff --git a/COPYING b/COPYING
index 5ab7695..f6683e7 100644
--- a/COPYING
+++ b/COPYING
@@ -1,8 +1,8 @@
-                 GNU LESSER GENERAL PUBLIC LICENSE
-                      Version 2.1, February 1999
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 2.1, February 1999
 
  Copyright (C) 1991, 1999 Free Software Foundation, Inc.
- 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ <https://fsf.org/>
  Everyone is permitted to copy and distribute verbatim copies
  of this license document, but changing it is not allowed.
 
@@ -10,7 +10,7 @@
  as the successor of the GNU Library Public License, version 2, hence
  the version number 2.1.]
 
-                           Preamble
+                            Preamble
 
   The licenses for most software are designed to take away your
 freedom to share and change it.  By contrast, the GNU General Public
@@ -112,7 +112,7 @@ modification follow.  Pay close attention to the difference 
between a
 former contains code derived from the library, whereas the latter must
 be combined with the library in order to run.
 
-                 GNU LESSER GENERAL PUBLIC LICENSE
+                  GNU LESSER GENERAL PUBLIC LICENSE
    TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
 
   0. This License Agreement applies to any software library or other
@@ -146,7 +146,7 @@ such a program is covered only if its contents constitute a 
work based
 on the Library (independent of the use of the Library in a tool for
 writing it).  Whether that is true depends on what the Library does
 and what the program that uses the Library does.
-  
+
   1. You may copy and distribute verbatim copies of the Library's
 complete source code as you receive it, in any medium, provided that
 you conspicuously and appropriately publish on each copy an
@@ -432,7 +432,7 @@ decision will be guided by the two goals of preserving the 
free status
 of all derivatives of our free software and of promoting the sharing
 and reuse of software generally.
 
-                           NO WARRANTY
+                            NO WARRANTY
 
   15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
 WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
@@ -455,7 +455,7 @@ FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), 
EVEN IF
 SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
 DAMAGES.
 
-                    END OF TERMS AND CONDITIONS
+                     END OF TERMS AND CONDITIONS
 
            How to Apply These Terms to Your New Libraries
 
@@ -484,8 +484,7 @@ convey the exclusion of warranty; and each file should have 
at least the
     Lesser General Public License for more details.
 
     You should have received a copy of the GNU Lesser General Public
-    License along with this library; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  
USA
+    License along with this library; if not, see 
<https://www.gnu.org/licenses/>.
 
 Also add information on how to contact you by electronic and paper mail.
 
@@ -496,9 +495,7 @@ necessary.  Here is a sample; alter the names:
   Yoyodyne, Inc., hereby disclaims all copyright interest in the
   library `Frob' (a library for tweaking knobs) written by James Random Hacker.
 
-  <signature of Ty Coon>, 1 April 1990
-  Ty Coon, President of Vice
+  <signature of Moe Ghoul>, 1 April 1990
+  Moe Ghoul, President of Vice
 
 That's all there is to it!
-
-
diff --git a/README.md b/README.md
index 908d40c..75bc4fb 100644
--- a/README.md
+++ b/README.md
@@ -317,9 +317,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See 
the GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 Feedback and bug reports
 ------------------------
diff --git a/online_check/check.js b/online_check/check.js
index 6901956..68d1665 100644
--- a/online_check/check.js
+++ b/online_check/check.js
@@ -14,9 +14,7 @@
  # Lesser General Public License for more details.
  #
  # You should have received a copy of the GNU Lesser General Public
- # License along with this library; if not, write to the Free Software
- # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- # 02110-1301 USA
+ # License along with this library; if not, see 
<https://www.gnu.org/licenses/>.
  */
 
 $(document).ready(function () {
diff --git a/online_check/stdnum.wsgi b/online_check/stdnum.wsgi
index 2d6f0c8..f95ce7c 100755
--- a/online_check/stdnum.wsgi
+++ b/online_check/stdnum.wsgi
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Simple WSGI application to check numbers."""
 
diff --git a/scripts/check_headers.py b/scripts/check_headers.py
index 41ab395..f1f19a1 100755
--- a/scripts/check_headers.py
+++ b/scripts/check_headers.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """This script checks that all source files have licensing information."""
 
@@ -48,9 +46,7 @@ license_re = re.compile(textwrap.dedent(r'''
     [# ]*Lesser General Public License for more details.
     [# ]*
     [# ]*You should have received a copy of the GNU Lesser General Public
-    [# ]*License along with this library; if not, write to the Free Software
-    [# ]*Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-    [# ]*02110-1301 USA
+    [# ]*License along with this library; if not, see 
<https://www.gnu.org/licenses/>.
     ''').strip(), re.MULTILINE)
 
 
diff --git a/setup.py b/setup.py
index 6e39cf9..bb95890 100755
--- a/setup.py
+++ b/setup.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """python-stdnum installation script."""
 
diff --git a/stdnum/__init__.py b/stdnum/__init__.py
index fc5e06a..44bb030 100644
--- a/stdnum/__init__.py
+++ b/stdnum/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Parse, validate and reformat standard numbers and codes.
 
diff --git a/stdnum/ad/__init__.py b/stdnum/ad/__init__.py
index 1c7c03b..5d475e2 100644
--- a/stdnum/ad/__init__.py
+++ b/stdnum/ad/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Andorran numbers."""
 
diff --git a/stdnum/ad/nrt.py b/stdnum/ad/nrt.py
index 43a6a56..2d98679 100644
--- a/stdnum/ad/nrt.py
+++ b/stdnum/ad/nrt.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NRT (Número de Registre Tributari, Andorra tax number).
 
diff --git a/stdnum/al/__init__.py b/stdnum/al/__init__.py
index 127fc7e..b36d045 100644
--- a/stdnum/al/__init__.py
+++ b/stdnum/al/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Albanian numbers."""
 
diff --git a/stdnum/al/nipt.py b/stdnum/al/nipt.py
index 55c92bf..11c8e8a 100644
--- a/stdnum/al/nipt.py
+++ b/stdnum/al/nipt.py
@@ -16,9 +16,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NIPT, NUIS (Numri i Identifikimit për Personin e Tatueshëm, Albanian tax 
number).
 
diff --git a/stdnum/ar/__init__.py b/stdnum/ar/__init__.py
index b7ddb44..70c04c1 100644
--- a/stdnum/ar/__init__.py
+++ b/stdnum/ar/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Argentinian numbers."""
 
diff --git a/stdnum/ar/cbu.py b/stdnum/ar/cbu.py
index 6923f96..6f34aba 100644
--- a/stdnum/ar/cbu.py
+++ b/stdnum/ar/cbu.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CBU (Clave Bancaria Uniforme, Argentine bank account number).
 
diff --git a/stdnum/ar/cuit.py b/stdnum/ar/cuit.py
index 2e461c8..acb9824 100644
--- a/stdnum/ar/cuit.py
+++ b/stdnum/ar/cuit.py
@@ -18,9 +18,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CUIT (Código Único de Identificación Tributaria, Argentinian tax number).
 
diff --git a/stdnum/ar/dni.py b/stdnum/ar/dni.py
index fbeb48a..fb3f820 100644
--- a/stdnum/ar/dni.py
+++ b/stdnum/ar/dni.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """DNI (Documento Nacional de Identidad, Argentinian national identity nr.).
 
diff --git a/stdnum/at/__init__.py b/stdnum/at/__init__.py
index 46c3b97..5cb55dc 100644
--- a/stdnum/at/__init__.py
+++ b/stdnum/at/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Austrian numbers."""
 
diff --git a/stdnum/at/businessid.py b/stdnum/at/businessid.py
index 45d8b54..83d94f8 100644
--- a/stdnum/at/businessid.py
+++ b/stdnum/at/businessid.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Austrian Company Register Numbers.
 
diff --git a/stdnum/at/postleitzahl.py b/stdnum/at/postleitzahl.py
index 8577358..59c4924 100644
--- a/stdnum/at/postleitzahl.py
+++ b/stdnum/at/postleitzahl.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Postleitzahl (Austrian postal code).
 
diff --git a/stdnum/at/tin.py b/stdnum/at/tin.py
index 26627b4..1edb6da 100644
--- a/stdnum/at/tin.py
+++ b/stdnum/at/tin.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 r"""Abgabenkontonummer (Austrian tax identification number).
 
diff --git a/stdnum/at/uid.py b/stdnum/at/uid.py
index 5e8b73e..07983b5 100644
--- a/stdnum/at/uid.py
+++ b/stdnum/at/uid.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """UID (Umsatzsteuer-Identifikationsnummer, Austrian VAT number).
 
diff --git a/stdnum/at/vnr.py b/stdnum/at/vnr.py
index 3b4862a..e1a2ee6 100644
--- a/stdnum/at/vnr.py
+++ b/stdnum/at/vnr.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """VNR, SVNR, VSNR (Versicherungsnummer, Austrian social security number).
 
diff --git a/stdnum/au/__init__.py b/stdnum/au/__init__.py
index 906a9a6..eea4d7c 100644
--- a/stdnum/au/__init__.py
+++ b/stdnum/au/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Australian numbers."""
 
diff --git a/stdnum/au/abn.py b/stdnum/au/abn.py
index 610e227..e2a863c 100644
--- a/stdnum/au/abn.py
+++ b/stdnum/au/abn.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ABN (Australian Business Number).
 
diff --git a/stdnum/au/acn.py b/stdnum/au/acn.py
index cee2ae7..9e63c54 100644
--- a/stdnum/au/acn.py
+++ b/stdnum/au/acn.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ACN (Australian Company Number).
 
diff --git a/stdnum/au/tfn.py b/stdnum/au/tfn.py
index 33844d5..6fd319b 100644
--- a/stdnum/au/tfn.py
+++ b/stdnum/au/tfn.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """TFN (Australian Tax File Number).
 
diff --git a/stdnum/az/__init__.py b/stdnum/az/__init__.py
index ef2c5c1..b7415cf 100644
--- a/stdnum/az/__init__.py
+++ b/stdnum/az/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Azerbaijan numbers."""
 
diff --git a/stdnum/az/voen.py b/stdnum/az/voen.py
index 61604dc..d8b98a3 100644
--- a/stdnum/az/voen.py
+++ b/stdnum/az/voen.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """VÖEN (Vergi ödəyicisinin eyniləşdirmə nömrəsi, Azerbaijan tax number).
 
diff --git a/stdnum/be/__init__.py b/stdnum/be/__init__.py
index 26ce6d5..fb6b357 100644
--- a/stdnum/be/__init__.py
+++ b/stdnum/be/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Belgian numbers."""
 
diff --git a/stdnum/be/bis.py b/stdnum/be/bis.py
index 20d0d6b..5bc9f66 100644
--- a/stdnum/be/bis.py
+++ b/stdnum/be/bis.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """BIS (Belgian BIS number).
 
diff --git a/stdnum/be/eid.py b/stdnum/be/eid.py
index 4c395d6..8c553ea 100644
--- a/stdnum/be/eid.py
+++ b/stdnum/be/eid.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """eID Number (Belgian electronic Identity Card Number).
 
diff --git a/stdnum/be/iban.py b/stdnum/be/iban.py
index 98adc12..906b7ff 100644
--- a/stdnum/be/iban.py
+++ b/stdnum/be/iban.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Belgian IBAN (International Bank Account Number).
 
diff --git a/stdnum/be/nn.py b/stdnum/be/nn.py
index 8d08e15..39eafb9 100644
--- a/stdnum/be/nn.py
+++ b/stdnum/be/nn.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NN, NISS, RRN (Belgian national number).
 
diff --git a/stdnum/be/ogm_vcs.py b/stdnum/be/ogm_vcs.py
index 8e3f857..31a1dc2 100644
--- a/stdnum/be/ogm_vcs.py
+++ b/stdnum/be/ogm_vcs.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Belgian OGM-VCS.
 
diff --git a/stdnum/be/ssn.py b/stdnum/be/ssn.py
index c51f876..0166d81 100644
--- a/stdnum/be/ssn.py
+++ b/stdnum/be/ssn.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """SSN, INSZ, NISS (Belgian social security number).
 
diff --git a/stdnum/be/vat.py b/stdnum/be/vat.py
index 982d5ae..f46a30c 100644
--- a/stdnum/be/vat.py
+++ b/stdnum/be/vat.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """BTW, TVA, NWSt, ondernemingsnummer (Belgian enterprise number).
 
diff --git a/stdnum/bg/__init__.py b/stdnum/bg/__init__.py
index ca12a41..e89c2e7 100644
--- a/stdnum/bg/__init__.py
+++ b/stdnum/bg/__init__.py
@@ -14,8 +14,6 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Bulgarian numbers."""
diff --git a/stdnum/bg/egn.py b/stdnum/bg/egn.py
index 30daf44..8bcecdb 100644
--- a/stdnum/bg/egn.py
+++ b/stdnum/bg/egn.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """EGN (ЕГН, Единен граждански номер, Bulgarian personal identity codes).
 
diff --git a/stdnum/bg/pnf.py b/stdnum/bg/pnf.py
index 2981c7a..5fa0f1f 100644
--- a/stdnum/bg/pnf.py
+++ b/stdnum/bg/pnf.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """PNF (ЛНЧ, Личен номер на чужденец, Bulgarian number of a foreigner).
 
diff --git a/stdnum/bg/vat.py b/stdnum/bg/vat.py
index 001f434..1f45198 100644
--- a/stdnum/bg/vat.py
+++ b/stdnum/bg/vat.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """VAT (Идентификационен номер по ДДС, Bulgarian VAT number).
 
diff --git a/stdnum/bic.py b/stdnum/bic.py
index cb82c23..7f4b69f 100644
--- a/stdnum/bic.py
+++ b/stdnum/bic.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """BIC (ISO 9362 Business identifier codes).
 
diff --git a/stdnum/bitcoin.py b/stdnum/bitcoin.py
index 6e34d02..4cf2bd9 100644
--- a/stdnum/bitcoin.py
+++ b/stdnum/bitcoin.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Bitcoin address.
 
diff --git a/stdnum/br/__init__.py b/stdnum/br/__init__.py
index 2838f9b..2b87a56 100644
--- a/stdnum/br/__init__.py
+++ b/stdnum/br/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Brazilian numbers."""
 
diff --git a/stdnum/br/cnpj.py b/stdnum/br/cnpj.py
index ede9d7d..27ed419 100644
--- a/stdnum/br/cnpj.py
+++ b/stdnum/br/cnpj.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CNPJ (Cadastro Nacional da Pessoa Jurídica, Brazilian company identifier).
 
diff --git a/stdnum/br/cpf.py b/stdnum/br/cpf.py
index 554982f..9dc0661 100644
--- a/stdnum/br/cpf.py
+++ b/stdnum/br/cpf.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CPF (Cadastro de Pessoas Físicas, Brazilian national identifier).
 
diff --git a/stdnum/by/__init__.py b/stdnum/by/__init__.py
index 529c0ac..bcfcf00 100644
--- a/stdnum/by/__init__.py
+++ b/stdnum/by/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Belarusian numbers."""
 
diff --git a/stdnum/by/unp.py b/stdnum/by/unp.py
index 31ad3bf..f17cc96 100644
--- a/stdnum/by/unp.py
+++ b/stdnum/by/unp.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """УНП, UNP (Учетный номер плательщика, the Belarus VAT number).
 
diff --git a/stdnum/ca/__init__.py b/stdnum/ca/__init__.py
index 8518396..f1b0621 100644
--- a/stdnum/ca/__init__.py
+++ b/stdnum/ca/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Canadian numbers."""
 
diff --git a/stdnum/ca/bc_phn.py b/stdnum/ca/bc_phn.py
index 56ba49a..e273258 100644
--- a/stdnum/ca/bc_phn.py
+++ b/stdnum/ca/bc_phn.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """BC PHN (British Columbia Personal Health Number).
 
diff --git a/stdnum/ca/bn.py b/stdnum/ca/bn.py
index 1f60c01..bf7625d 100644
--- a/stdnum/ca/bn.py
+++ b/stdnum/ca/bn.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """BN (Canadian Business Number).
 
diff --git a/stdnum/ca/sin.py b/stdnum/ca/sin.py
index 6e0f0fe..66b7294 100644
--- a/stdnum/ca/sin.py
+++ b/stdnum/ca/sin.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """SIN (Canadian Social Insurance Number).
 
diff --git a/stdnum/casrn.py b/stdnum/casrn.py
index 3eb850a..b4bdd27 100644
--- a/stdnum/casrn.py
+++ b/stdnum/casrn.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CAS RN (Chemical Abstracts Service Registry Number).
 
diff --git a/stdnum/cfi.py b/stdnum/cfi.py
index 492bb54..56b9b85 100644
--- a/stdnum/cfi.py
+++ b/stdnum/cfi.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CFI (ISO 10962 Classification of Financial Instruments).
 
diff --git a/stdnum/ch/__init__.py b/stdnum/ch/__init__.py
index cea3564..72e300b 100644
--- a/stdnum/ch/__init__.py
+++ b/stdnum/ch/__init__.py
@@ -14,8 +14,6 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Swiss numbers."""
diff --git a/stdnum/ch/esr.py b/stdnum/ch/esr.py
index 0b94fdf..eb363e1 100644
--- a/stdnum/ch/esr.py
+++ b/stdnum/ch/esr.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ESR, ISR, QR-reference (reference number on Swiss payment slips).
 
diff --git a/stdnum/ch/ssn.py b/stdnum/ch/ssn.py
index 5a1ddef..131e1d4 100644
--- a/stdnum/ch/ssn.py
+++ b/stdnum/ch/ssn.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Swiss social security number ("Sozialversicherungsnummer").
 
diff --git a/stdnum/ch/uid.py b/stdnum/ch/uid.py
index 5831817..be2f327 100644
--- a/stdnum/ch/uid.py
+++ b/stdnum/ch/uid.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """UID (Unternehmens-Identifikationsnummer, Swiss business identifier).
 
diff --git a/stdnum/ch/vat.py b/stdnum/ch/vat.py
index c66264c..42f2fa6 100644
--- a/stdnum/ch/vat.py
+++ b/stdnum/ch/vat.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """VAT, MWST, TVA, IVA, TPV (Mehrwertsteuernummer, the Swiss VAT number).
 
diff --git a/stdnum/cl/__init__.py b/stdnum/cl/__init__.py
index 6c88f78..8bdf85e 100644
--- a/stdnum/cl/__init__.py
+++ b/stdnum/cl/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Chilean numbers."""
 
diff --git a/stdnum/cl/rut.py b/stdnum/cl/rut.py
index 8a06a28..353be11 100644
--- a/stdnum/cl/rut.py
+++ b/stdnum/cl/rut.py
@@ -16,9 +16,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """RUT (Rol Único Tributario, Chilean national tax number).
 
diff --git a/stdnum/cn/__init__.py b/stdnum/cn/__init__.py
index 86235cc..d5b67a8 100644
--- a/stdnum/cn/__init__.py
+++ b/stdnum/cn/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of China (PRC) numbers."""
 
diff --git a/stdnum/cn/ric.py b/stdnum/cn/ric.py
index 807d5f3..12554b8 100644
--- a/stdnum/cn/ric.py
+++ b/stdnum/cn/ric.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """RIC No. (Chinese Resident Identity Card Number).
 
diff --git a/stdnum/cn/uscc.py b/stdnum/cn/uscc.py
index 7f870c2..a14b93b 100644
--- a/stdnum/cn/uscc.py
+++ b/stdnum/cn/uscc.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """USCC (Unified Social Credit Code, 统一社会信用代码, China tax number).
 
diff --git a/stdnum/co/__init__.py b/stdnum/co/__init__.py
index 320cab0..997ad89 100644
--- a/stdnum/co/__init__.py
+++ b/stdnum/co/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Colombian numbers."""
 
diff --git a/stdnum/co/nit.py b/stdnum/co/nit.py
index f250584..213ed32 100644
--- a/stdnum/co/nit.py
+++ b/stdnum/co/nit.py
@@ -16,9 +16,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NIT (Número De Identificación Tributaria, Colombian identity code).
 
diff --git a/stdnum/cr/__init__.py b/stdnum/cr/__init__.py
index 9cc8e3d..ca027c8 100644
--- a/stdnum/cr/__init__.py
+++ b/stdnum/cr/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Costa Rican numbers."""
 
diff --git a/stdnum/cr/cpf.py b/stdnum/cr/cpf.py
index ff90626..8f48df2 100644
--- a/stdnum/cr/cpf.py
+++ b/stdnum/cr/cpf.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CPF (Cédula de Persona Física, Costa Rica physical person ID number).
 
diff --git a/stdnum/cr/cpj.py b/stdnum/cr/cpj.py
index dcc8548..a61ad4f 100644
--- a/stdnum/cr/cpj.py
+++ b/stdnum/cr/cpj.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CPJ (Cédula de Persona Jurídica, Costa Rica tax number).
 
diff --git a/stdnum/cr/cr.py b/stdnum/cr/cr.py
index 13fb71f..5cbf29e 100644
--- a/stdnum/cr/cr.py
+++ b/stdnum/cr/cr.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CR (Cédula de Residencia, Costa Rica foreigners ID number).
 
diff --git a/stdnum/cu/__init__.py b/stdnum/cu/__init__.py
index aec2e46..1cb6f62 100644
--- a/stdnum/cu/__init__.py
+++ b/stdnum/cu/__init__.py
@@ -14,8 +14,6 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Cuban numbers."""
diff --git a/stdnum/cu/ni.py b/stdnum/cu/ni.py
index 3956d52..c9e8d6b 100644
--- a/stdnum/cu/ni.py
+++ b/stdnum/cu/ni.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NI (Número de identidad, Cuban identity card numbers).
 
diff --git a/stdnum/cusip.py b/stdnum/cusip.py
index a560e54..b21813e 100644
--- a/stdnum/cusip.py
+++ b/stdnum/cusip.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CUSIP number (financial security identification number).
 
diff --git a/stdnum/cy/__init__.py b/stdnum/cy/__init__.py
index 1d0117b..095d36e 100644
--- a/stdnum/cy/__init__.py
+++ b/stdnum/cy/__init__.py
@@ -14,8 +14,6 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Cypriot numbers."""
diff --git a/stdnum/cy/vat.py b/stdnum/cy/vat.py
index 5862134..4c2c521 100644
--- a/stdnum/cy/vat.py
+++ b/stdnum/cy/vat.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Αριθμός Εγγραφής Φ.Π.Α. (Cypriot VAT number).
 
diff --git a/stdnum/cz/__init__.py b/stdnum/cz/__init__.py
index 6e292b5..9e3c018 100644
--- a/stdnum/cz/__init__.py
+++ b/stdnum/cz/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Czech numbers."""
 
diff --git a/stdnum/cz/bankaccount.py b/stdnum/cz/bankaccount.py
index 4fbc59b..ccfee4f 100644
--- a/stdnum/cz/bankaccount.py
+++ b/stdnum/cz/bankaccount.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Czech bank account number.
 
diff --git a/stdnum/cz/dic.py b/stdnum/cz/dic.py
index b4b790b..7b331d2 100644
--- a/stdnum/cz/dic.py
+++ b/stdnum/cz/dic.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """DIČ (Daňové identifikační číslo, Czech VAT number).
 
diff --git a/stdnum/cz/rc.py b/stdnum/cz/rc.py
index d4ddd64..f4d395c 100644
--- a/stdnum/cz/rc.py
+++ b/stdnum/cz/rc.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """RČ (Rodné číslo, the Czech birth number).
 
diff --git a/stdnum/damm.py b/stdnum/damm.py
index abb983e..2151b09 100644
--- a/stdnum/damm.py
+++ b/stdnum/damm.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """The Damm algorithm.
 
diff --git a/stdnum/de/__init__.py b/stdnum/de/__init__.py
index df82ea3..c684bdd 100644
--- a/stdnum/de/__init__.py
+++ b/stdnum/de/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of German numbers."""
 
diff --git a/stdnum/de/handelsregisternummer.py 
b/stdnum/de/handelsregisternummer.py
index 9253d3c..f1dead9 100644
--- a/stdnum/de/handelsregisternummer.py
+++ b/stdnum/de/handelsregisternummer.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Handelsregisternummer (German company register number).
 
diff --git a/stdnum/de/idnr.py b/stdnum/de/idnr.py
index b07f832..4982a46 100644
--- a/stdnum/de/idnr.py
+++ b/stdnum/de/idnr.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """IdNr (Steuerliche Identifikationsnummer, German personal tax number).
 
diff --git a/stdnum/de/leitweg.py b/stdnum/de/leitweg.py
index 2957f64..b5d8063 100644
--- a/stdnum/de/leitweg.py
+++ b/stdnum/de/leitweg.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Leitweg-ID, a buyer reference or routing identifier for electronic invoices.
 
diff --git a/stdnum/de/stnr.py b/stdnum/de/stnr.py
index 67ca9fe..822747d 100644
--- a/stdnum/de/stnr.py
+++ b/stdnum/de/stnr.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """St.-Nr. (Steuernummer, German tax number).
 
diff --git a/stdnum/de/vat.py b/stdnum/de/vat.py
index c09eadf..af0587f 100644
--- a/stdnum/de/vat.py
+++ b/stdnum/de/vat.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Ust ID Nr. (Umsatzsteur Identifikationnummer, German VAT number).
 
diff --git a/stdnum/de/wkn.py b/stdnum/de/wkn.py
index f303223..4d3fe66 100644
--- a/stdnum/de/wkn.py
+++ b/stdnum/de/wkn.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Wertpapierkennnummer (German securities identification code).
 
diff --git a/stdnum/dk/__init__.py b/stdnum/dk/__init__.py
index ef79e7a..d594e13 100644
--- a/stdnum/dk/__init__.py
+++ b/stdnum/dk/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Danish numbers."""
 
diff --git a/stdnum/dk/cpr.py b/stdnum/dk/cpr.py
index 901bc08..c547f2d 100644
--- a/stdnum/dk/cpr.py
+++ b/stdnum/dk/cpr.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CPR (personnummer, the Danish citizen number).
 
diff --git a/stdnum/dk/cvr.py b/stdnum/dk/cvr.py
index 849b8d9..008ce93 100644
--- a/stdnum/dk/cvr.py
+++ b/stdnum/dk/cvr.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CVR (Momsregistreringsnummer, Danish VAT number).
 
diff --git a/stdnum/do/__init__.py b/stdnum/do/__init__.py
index 16c67f5..30603c8 100644
--- a/stdnum/do/__init__.py
+++ b/stdnum/do/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Dominican Republic numbers."""
 
diff --git a/stdnum/do/cedula.py b/stdnum/do/cedula.py
index 97a3a72..9858001 100644
--- a/stdnum/do/cedula.py
+++ b/stdnum/do/cedula.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Cedula (Dominican Republic national identification number).
 
diff --git a/stdnum/do/ncf.py b/stdnum/do/ncf.py
index c67a3b8..ed8f067 100644
--- a/stdnum/do/ncf.py
+++ b/stdnum/do/ncf.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 # Development of this functionality was funded by iterativo | 
https://iterativo.do
 
diff --git a/stdnum/do/rnc.py b/stdnum/do/rnc.py
index 63570d3..4d6852c 100644
--- a/stdnum/do/rnc.py
+++ b/stdnum/do/rnc.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 # Development of this functionality was funded by iterativo | 
https://iterativo.do
 
diff --git a/stdnum/dz/__init__.py b/stdnum/dz/__init__.py
index 812c3ec..60cae22 100644
--- a/stdnum/dz/__init__.py
+++ b/stdnum/dz/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Algerian numbers."""
 
diff --git a/stdnum/dz/nif.py b/stdnum/dz/nif.py
index 3f4857e..c28173f 100644
--- a/stdnum/dz/nif.py
+++ b/stdnum/dz/nif.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NIF, sometimes N.I.F. (Numéro d'Identification Fiscale, Algeria tax number).
 
diff --git a/stdnum/ean.py b/stdnum/ean.py
index f84503c..befa232 100644
--- a/stdnum/ean.py
+++ b/stdnum/ean.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """EAN (International Article Number).
 
diff --git a/stdnum/ec/__init__.py b/stdnum/ec/__init__.py
index 3c35346..da33413 100644
--- a/stdnum/ec/__init__.py
+++ b/stdnum/ec/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Ecuadorian numbers."""
 
diff --git a/stdnum/ec/ci.py b/stdnum/ec/ci.py
index 0046266..0e48fe6 100644
--- a/stdnum/ec/ci.py
+++ b/stdnum/ec/ci.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CI (Cédula de identidad, Ecuadorian personal identity code).
 
diff --git a/stdnum/ec/ruc.py b/stdnum/ec/ruc.py
index d2b45ca..59fdbf6 100644
--- a/stdnum/ec/ruc.py
+++ b/stdnum/ec/ruc.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """RUC (Registro Único de Contribuyentes, Ecuadorian company tax number).
 
diff --git a/stdnum/ee/__init__.py b/stdnum/ee/__init__.py
index 3a7e959..a7444b0 100644
--- a/stdnum/ee/__init__.py
+++ b/stdnum/ee/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Estonian numbers."""
 
diff --git a/stdnum/ee/ik.py b/stdnum/ee/ik.py
index b8465bb..10af45d 100644
--- a/stdnum/ee/ik.py
+++ b/stdnum/ee/ik.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Isikukood (Estonian Personal ID number).
 
diff --git a/stdnum/ee/kmkr.py b/stdnum/ee/kmkr.py
index e94ad8b..85383a8 100644
--- a/stdnum/ee/kmkr.py
+++ b/stdnum/ee/kmkr.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """KMKR (Käibemaksukohuslase, Estonian VAT number).
 
diff --git a/stdnum/ee/registrikood.py b/stdnum/ee/registrikood.py
index ab4427c..0a3228c 100644
--- a/stdnum/ee/registrikood.py
+++ b/stdnum/ee/registrikood.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Registrikood (Estonian organisation registration code).
 
diff --git a/stdnum/eg/__init__.py b/stdnum/eg/__init__.py
index 1026aca..347c1f3 100644
--- a/stdnum/eg/__init__.py
+++ b/stdnum/eg/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Egypt numbers."""
 
diff --git a/stdnum/eg/tn.py b/stdnum/eg/tn.py
index 07559db..92e9367 100644
--- a/stdnum/eg/tn.py
+++ b/stdnum/eg/tn.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Tax Registration Number (الرقم الضريبي, Egypt tax number).
 
diff --git a/stdnum/es/__init__.py b/stdnum/es/__init__.py
index cc88137..247f552 100644
--- a/stdnum/es/__init__.py
+++ b/stdnum/es/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Spanish numbers."""
 
diff --git a/stdnum/es/cae.py b/stdnum/es/cae.py
index b203881..2cfb340 100644
--- a/stdnum/es/cae.py
+++ b/stdnum/es/cae.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CAE (Código de Actividad y Establecimiento, Spanish activity establishment 
code).
 
diff --git a/stdnum/es/ccc.py b/stdnum/es/ccc.py
index ce0a8b1..952d250 100644
--- a/stdnum/es/ccc.py
+++ b/stdnum/es/ccc.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CCC (Código Cuenta Corriente, Spanish Bank Account Code)
 
diff --git a/stdnum/es/cif.py b/stdnum/es/cif.py
index ea9dd0d..4072d0e 100644
--- a/stdnum/es/cif.py
+++ b/stdnum/es/cif.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CIF (Código de Identificación Fiscal, Spanish company tax number).
 
diff --git a/stdnum/es/cups.py b/stdnum/es/cups.py
index f666eac..59913d9 100644
--- a/stdnum/es/cups.py
+++ b/stdnum/es/cups.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CUPS (Código Unificado de Punto de Suministro, Spanish meter point number).
 
diff --git a/stdnum/es/dni.py b/stdnum/es/dni.py
index f50ebc8..6697942 100644
--- a/stdnum/es/dni.py
+++ b/stdnum/es/dni.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """DNI (Documento Nacional de Identidad, Spanish personal identity codes).
 
diff --git a/stdnum/es/iban.py b/stdnum/es/iban.py
index 7de1403..b777f4c 100644
--- a/stdnum/es/iban.py
+++ b/stdnum/es/iban.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Spanish IBAN (International Bank Account Number).
 
diff --git a/stdnum/es/nie.py b/stdnum/es/nie.py
index 52462a2..400bc70 100644
--- a/stdnum/es/nie.py
+++ b/stdnum/es/nie.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NIE (Número de Identificación de Extranjero, Spanish foreigner number).
 
diff --git a/stdnum/es/nif.py b/stdnum/es/nif.py
index cb05bd6..7eb4c01 100644
--- a/stdnum/es/nif.py
+++ b/stdnum/es/nif.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NIF (Número de Identificación Fiscal, Spanish VAT number).
 
diff --git a/stdnum/es/postal_code.py b/stdnum/es/postal_code.py
index 81ea4c2..a9a4ab8 100644
--- a/stdnum/es/postal_code.py
+++ b/stdnum/es/postal_code.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Postcode (the Spanish postal code).
 
diff --git a/stdnum/es/referenciacatastral.py b/stdnum/es/referenciacatastral.py
index 19123c9..82c3d17 100644
--- a/stdnum/es/referenciacatastral.py
+++ b/stdnum/es/referenciacatastral.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Referencia Catastral (Spanish real estate property id)
 
diff --git a/stdnum/eu/__init__.py b/stdnum/eu/__init__.py
index a00e832..f76f0a2 100644
--- a/stdnum/eu/__init__.py
+++ b/stdnum/eu/__init__.py
@@ -14,8 +14,6 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of European Union numbers."""
diff --git a/stdnum/eu/at_02.py b/stdnum/eu/at_02.py
index fa750ac..610ef61 100644
--- a/stdnum/eu/at_02.py
+++ b/stdnum/eu/at_02.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """SEPA Identifier of the Creditor (AT-02).
 
diff --git a/stdnum/eu/banknote.py b/stdnum/eu/banknote.py
index 160ca13..47f83ea 100644
--- a/stdnum/eu/banknote.py
+++ b/stdnum/eu/banknote.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Euro banknote serial numbers.
 
diff --git a/stdnum/eu/ecnumber.py b/stdnum/eu/ecnumber.py
index 138a936..5255c95 100644
--- a/stdnum/eu/ecnumber.py
+++ b/stdnum/eu/ecnumber.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """EC Number (European Community number).
 
diff --git a/stdnum/eu/eic.py b/stdnum/eu/eic.py
index cf3c96b..47e6999 100644
--- a/stdnum/eu/eic.py
+++ b/stdnum/eu/eic.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """EIC (European Energy Identification Code).
 
diff --git a/stdnum/eu/excise.py b/stdnum/eu/excise.py
index d84377d..736a22a 100644
--- a/stdnum/eu/excise.py
+++ b/stdnum/eu/excise.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """European Excise Number
 
diff --git a/stdnum/eu/nace.py b/stdnum/eu/nace.py
index b222b15..e0c9db4 100644
--- a/stdnum/eu/nace.py
+++ b/stdnum/eu/nace.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NACE (classification for businesses in the European Union).
 
diff --git a/stdnum/eu/oss.py b/stdnum/eu/oss.py
index 7bb3f65..40524f5 100644
--- a/stdnum/eu/oss.py
+++ b/stdnum/eu/oss.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """OSS (European VAT on e-Commerce - One Stop Shop).
 
diff --git a/stdnum/eu/vat.py b/stdnum/eu/vat.py
index 062abaa..6c2e5a2 100644
--- a/stdnum/eu/vat.py
+++ b/stdnum/eu/vat.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """VAT (European Union VAT number).
 
diff --git a/stdnum/exceptions.py b/stdnum/exceptions.py
index daa9d2f..20c8ef0 100644
--- a/stdnum/exceptions.py
+++ b/stdnum/exceptions.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of exceptions.
 
diff --git a/stdnum/fi/__init__.py b/stdnum/fi/__init__.py
index c47cc8d..aa25af5 100644
--- a/stdnum/fi/__init__.py
+++ b/stdnum/fi/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Finnish numbers."""
 
diff --git a/stdnum/fi/alv.py b/stdnum/fi/alv.py
index 3c38a6b..07cbfb8 100644
--- a/stdnum/fi/alv.py
+++ b/stdnum/fi/alv.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ALV nro (Arvonlisäveronumero, Finnish VAT number).
 
diff --git a/stdnum/fi/associationid.py b/stdnum/fi/associationid.py
index 4535d1c..b7b9cc5 100644
--- a/stdnum/fi/associationid.py
+++ b/stdnum/fi/associationid.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Finnish Association Identifier.
 
diff --git a/stdnum/fi/hetu.py b/stdnum/fi/hetu.py
index 4ad5798..d377293 100644
--- a/stdnum/fi/hetu.py
+++ b/stdnum/fi/hetu.py
@@ -16,9 +16,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """HETU (Henkilötunnus, Finnish personal identity code).
 
diff --git a/stdnum/fi/veronumero.py b/stdnum/fi/veronumero.py
index 6b2a6ff..ca0e92c 100644
--- a/stdnum/fi/veronumero.py
+++ b/stdnum/fi/veronumero.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """
 Veronumero (Finnish individual tax number).
diff --git a/stdnum/fi/ytunnus.py b/stdnum/fi/ytunnus.py
index b489830..3e8cd8c 100644
--- a/stdnum/fi/ytunnus.py
+++ b/stdnum/fi/ytunnus.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Y-tunnus (Finnish business identifier).
 
diff --git a/stdnum/figi.py b/stdnum/figi.py
index daecd79..240b345 100644
--- a/stdnum/figi.py
+++ b/stdnum/figi.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """FIGI (Financial Instrument Global Identifier).
 
diff --git a/stdnum/fo/__init__.py b/stdnum/fo/__init__.py
index 251fe25..e39b257 100644
--- a/stdnum/fo/__init__.py
+++ b/stdnum/fo/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Faroe Islands numbers."""
 
diff --git a/stdnum/fo/vn.py b/stdnum/fo/vn.py
index 536a3f7..fa7232b 100644
--- a/stdnum/fo/vn.py
+++ b/stdnum/fo/vn.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """V-number (Vinnutal, Faroe Islands tax number).
 
diff --git a/stdnum/fr/__init__.py b/stdnum/fr/__init__.py
index 70293e5..4ecbfe8 100644
--- a/stdnum/fr/__init__.py
+++ b/stdnum/fr/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of French numbers."""
 
diff --git a/stdnum/fr/accise.py b/stdnum/fr/accise.py
index 1e97ffe..fcdd63b 100644
--- a/stdnum/fr/accise.py
+++ b/stdnum/fr/accise.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """n° d'accise (French number to identify taxpayers of excise taxes).
 
diff --git a/stdnum/fr/nif.py b/stdnum/fr/nif.py
index 348a4b9..9dd4c46 100644
--- a/stdnum/fr/nif.py
+++ b/stdnum/fr/nif.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NIF (Numéro d'Immatriculation Fiscale, French tax identification number).
 
diff --git a/stdnum/fr/nir.py b/stdnum/fr/nir.py
index 121da27..24f14a3 100644
--- a/stdnum/fr/nir.py
+++ b/stdnum/fr/nir.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NIR (French personal identification number).
 
diff --git a/stdnum/fr/rcs.py b/stdnum/fr/rcs.py
index cc4ad27..5e39749 100644
--- a/stdnum/fr/rcs.py
+++ b/stdnum/fr/rcs.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """RCS (French trade registration number for commercial companies).
 
diff --git a/stdnum/fr/siren.py b/stdnum/fr/siren.py
index f1510ea..4964d2b 100644
--- a/stdnum/fr/siren.py
+++ b/stdnum/fr/siren.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """SIREN (a French company identification number).
 
diff --git a/stdnum/fr/siret.py b/stdnum/fr/siret.py
index 477d35b..41d1cef 100644
--- a/stdnum/fr/siret.py
+++ b/stdnum/fr/siret.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """SIRET (a French company establishment identification number).
 
diff --git a/stdnum/fr/tva.py b/stdnum/fr/tva.py
index faba6bc..52b10d2 100644
--- a/stdnum/fr/tva.py
+++ b/stdnum/fr/tva.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """n° TVA (taxe sur la valeur ajoutée, French VAT number).
 
diff --git a/stdnum/gb/__init__.py b/stdnum/gb/__init__.py
index 2c3ec3c..ed9c51d 100644
--- a/stdnum/gb/__init__.py
+++ b/stdnum/gb/__init__.py
@@ -14,8 +14,6 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of United Kingdom numbers."""
diff --git a/stdnum/gb/nhs.py b/stdnum/gb/nhs.py
index 0b11554..0ed3477 100644
--- a/stdnum/gb/nhs.py
+++ b/stdnum/gb/nhs.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NHS (United Kingdom National Health Service patient identifier).
 
diff --git a/stdnum/gb/sedol.py b/stdnum/gb/sedol.py
index 2b38b17..6d66255 100644
--- a/stdnum/gb/sedol.py
+++ b/stdnum/gb/sedol.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """SEDOL number (Stock Exchange Daily Official List number).
 
diff --git a/stdnum/gb/upn.py b/stdnum/gb/upn.py
index 0e9c94e..a3f22a1 100644
--- a/stdnum/gb/upn.py
+++ b/stdnum/gb/upn.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """UPN (English Unique Pupil Number).
 
diff --git a/stdnum/gb/utr.py b/stdnum/gb/utr.py
index eab0bf5..00911e8 100644
--- a/stdnum/gb/utr.py
+++ b/stdnum/gb/utr.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """UTR (United Kingdom Unique Taxpayer Reference).
 
diff --git a/stdnum/gb/vat.py b/stdnum/gb/vat.py
index 3ee9f96..9111917 100644
--- a/stdnum/gb/vat.py
+++ b/stdnum/gb/vat.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """VAT (United Kingdom (and Isle of Man) VAT registration number).
 
diff --git a/stdnum/gh/__init__.py b/stdnum/gh/__init__.py
index 1809b17..268cdda 100644
--- a/stdnum/gh/__init__.py
+++ b/stdnum/gh/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Ghana numbers."""
 
diff --git a/stdnum/gh/tin.py b/stdnum/gh/tin.py
index f9ea45a..f048c99 100644
--- a/stdnum/gh/tin.py
+++ b/stdnum/gh/tin.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """TIN (Taxpayer Identification Number, Ghana tax number).
 
diff --git a/stdnum/gn/__init__.py b/stdnum/gn/__init__.py
index 136d748..2e3c212 100644
--- a/stdnum/gn/__init__.py
+++ b/stdnum/gn/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Guinea numbers."""
 
diff --git a/stdnum/gn/nifp.py b/stdnum/gn/nifp.py
index d374931..29a1751 100644
--- a/stdnum/gn/nifp.py
+++ b/stdnum/gn/nifp.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NIFp (Numéro d'Identification Fiscale Permanent, Guinea tax number).
 
diff --git a/stdnum/gr/__init__.py b/stdnum/gr/__init__.py
index 89aae30..a01ea35 100644
--- a/stdnum/gr/__init__.py
+++ b/stdnum/gr/__init__.py
@@ -14,8 +14,6 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Greek numbers."""
diff --git a/stdnum/gr/amka.py b/stdnum/gr/amka.py
index bfb1ae3..629e039 100644
--- a/stdnum/gr/amka.py
+++ b/stdnum/gr/amka.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """AMKA (Αριθμός Μητρώου Κοινωνικής Ασφάλισης, Greek social security number).
 
diff --git a/stdnum/gr/vat.py b/stdnum/gr/vat.py
index b83117e..ff2a6ab 100644
--- a/stdnum/gr/vat.py
+++ b/stdnum/gr/vat.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """FPA, ΦΠΑ, ΑΦΜ (Αριθμός Φορολογικού Μητρώου, the Greek VAT number).
 
diff --git a/stdnum/grid.py b/stdnum/grid.py
index b1ef26a..3cfedc3 100644
--- a/stdnum/grid.py
+++ b/stdnum/grid.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """GRid (Global Release Identifier).
 
diff --git a/stdnum/gs1_128.py b/stdnum/gs1_128.py
index edee598..001dd58 100644
--- a/stdnum/gs1_128.py
+++ b/stdnum/gs1_128.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """GS1-128 (Standard to encode product information in Code 128 barcodes).
 
diff --git a/stdnum/gt/__init__.py b/stdnum/gt/__init__.py
index e0d6f06..3d94280 100644
--- a/stdnum/gt/__init__.py
+++ b/stdnum/gt/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Guatemalan numbers."""
 
diff --git a/stdnum/gt/cui.txt b/stdnum/gt/cui.txt
new file mode 100644
index 0000000..b944168
--- /dev/null
+++ b/stdnum/gt/cui.txt
@@ -0,0 +1,121 @@
+# cui.py - functions for handling Guatemala CUI numbers
+#
+# Copyright (C) 2025 Arthur de Jong
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
+
+"""
+
+Guatemala – National ID Number (Código Único de Identificación, CUI)
+
+
+
+
+The Guatemalan National ID Number (Código Único de Identificación, CUI) is the 
official identification number issued to Guatemalan nationals and permanent 
residents. The CUI appears on the Personal Identification Document (Documento 
Personal de Identificación, DPI), which all Guatemalan nationals can obtain 
when they turn 18 years old. In other words, the DPI is the identification 
document itself, and the CUI is the number on that document.
+
+The CUI comprises a 13-digit numeric code:
+
+    The first eight digits (A) are randomly assigned numbers (número 
correlativo asignado).
+    The ninth digit (B) is a checksum digit (dígito verificador).
+    The tenth and eleventh digits (C) comprise a two-digit code denoting the 
department of birth.
+    The twelfth and thirteenth digits (D) comprise a two-digit code indicating 
the municipality of birth. A list of two-digit codes for departments and 
municipalities in Guatemala can be found here.
+
+The resulting ID number is structured as follows:
+
+AAAAAAAABCCDD
+
+Note that for naturalized citizens and permanent residents, the last four 
digits correspond to the department and municipality where they registered for 
the DPI.
+
+
+https://www.renap.gob.gt/noticias/codigo-unico-de-identificacion-cui#:~:text=Est%C3%A1%20compuesto%20por%2013%20d%C3%ADgitos,del%20municipio%20de%20su%20nacimiento
+
+"""
+
+from stdnum.exceptions import *
+from stdnum.util import clean, isdigits
+
+
+
+
+
+
+
+
+def check_vat(self):
+    """ Extention of the validation method to cover DPI/CUI and NIT. """
+    l10n_gt_partners = self.filtered(lambda p: p.country_code == 'GT')
+    l10n_gt_partners.l10n_gt_identification_validation()
+    return super(ResPartner, self - l10n_gt_partners).check_vat()
+
+
+def l10n_gt_identification_validation(self):
+    for record in self.filtered('vat'):
+        record.ensure_one()
+        if record.l10n_latam_identification_type_id == 
self.env.ref('l10n_gt.it_cui'):
+            cui_sum = sum(int(a) * b for a, b in zip(record.vat[:8], range(2, 
10)))
+            cui_res = '0123456789K'[(cui_sum % 11)]
+            if record.vat[8] != cui_res:
+                raise ValidationError(_("Incorrect verification digit for the 
CUI identification type."))
+        elif record.l10n_latam_identification_type_id == 
self.env.ref('l10n_gt.it_nit'):
+            stdnum.gt.nit.validate(record.vat)
+
+
+
+
+
+
+
+def compact(number):
+    """Convert the number to the minimal representation. This strips the
+    number of any valid separators and removes surrounding whitespace."""
+    return clean(number, ' -').upper().strip().lstrip('0')
+    # FIXME: check
+
+
+def calc_check_digit(number):
+    """Calculate the check digit. The number passed should not have the
+    check digit included."""
+    c = -sum(i * int(n) for i, n in enumerate(reversed(number), 2)) % 11
+    return 'K' if c == 10 else str(c)
+
+
+def validate(number):
+    """Check if the number is a valid Guatemala NIT number.
+
+    This checks the length, formatting and check digit.
+    """
+    number = compact(number)
+    if len(number) < 2 or len(number) > 12:
+        raise InvalidLength()
+    if not isdigits(number[:-1]):
+        raise InvalidFormat()
+    if number[-1] != 'K' and not isdigits(number[-1]):
+        raise InvalidFormat()
+    if number[-1] != calc_check_digit(number[:-1]):
+        raise InvalidChecksum()
+    return number
+
+
+def is_valid(number):
+    """Check if the number is a valid Guatemala NIT number."""
+    try:
+        return bool(validate(number))
+    except ValidationError:
+        return False
+
+
+def format(number):
+    """Reformat the number to the standard presentation format."""
+    number = compact(number)
+    return '-'.join([number[:-1], number[-1]])
diff --git a/stdnum/gt/nit.py b/stdnum/gt/nit.py
index 38c1fe3..64416e2 100644
--- a/stdnum/gt/nit.py
+++ b/stdnum/gt/nit.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NIT (Número de Identificación Tributaria, Guatemala tax number).
 
diff --git a/stdnum/hr/__init__.py b/stdnum/hr/__init__.py
index 8d2e3d6..51d85d0 100644
--- a/stdnum/hr/__init__.py
+++ b/stdnum/hr/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Croatian numbers."""
 
diff --git a/stdnum/hr/oib.py b/stdnum/hr/oib.py
index ed176cc..4be93a3 100644
--- a/stdnum/hr/oib.py
+++ b/stdnum/hr/oib.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """OIB (Osobni identifikacijski broj, Croatian identification number).
 
diff --git a/stdnum/hu/__init__.py b/stdnum/hu/__init__.py
index f271446..4b57b2b 100644
--- a/stdnum/hu/__init__.py
+++ b/stdnum/hu/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Hungarian numbers."""
 
diff --git a/stdnum/hu/anum.py b/stdnum/hu/anum.py
index 1316ed9..77da79e 100644
--- a/stdnum/hu/anum.py
+++ b/stdnum/hu/anum.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ANUM (Közösségi adószám, Hungarian VAT number).
 
diff --git a/stdnum/iban.py b/stdnum/iban.py
index 7c54871..7aa1db4 100644
--- a/stdnum/iban.py
+++ b/stdnum/iban.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """IBAN (International Bank Account Number).
 
diff --git a/stdnum/id/__init__.py b/stdnum/id/__init__.py
index 86737d8..50e6cd2 100644
--- a/stdnum/id/__init__.py
+++ b/stdnum/id/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Indonesian numbers."""
 
diff --git a/stdnum/id/nik.py b/stdnum/id/nik.py
index 906a4cd..6090237 100644
--- a/stdnum/id/nik.py
+++ b/stdnum/id/nik.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NIK (Nomor Induk Kependudukan, Indonesian identity number).
 
diff --git a/stdnum/id/npwp.py b/stdnum/id/npwp.py
index fc1d5b9..fe7a4df 100644
--- a/stdnum/id/npwp.py
+++ b/stdnum/id/npwp.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NPWP (Nomor Pokok Wajib Pajak, Indonesian VAT Number).
 
diff --git a/stdnum/ie/__init__.py b/stdnum/ie/__init__.py
index 8adc477..5f87437 100644
--- a/stdnum/ie/__init__.py
+++ b/stdnum/ie/__init__.py
@@ -14,8 +14,6 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Irish numbers."""
diff --git a/stdnum/ie/pps.py b/stdnum/ie/pps.py
index c0b9f7c..7ad007a 100644
--- a/stdnum/ie/pps.py
+++ b/stdnum/ie/pps.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """PPS No (Personal Public Service Number, Irish personal number).
 
diff --git a/stdnum/ie/vat.py b/stdnum/ie/vat.py
index 66958a2..59e3ed5 100644
--- a/stdnum/ie/vat.py
+++ b/stdnum/ie/vat.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """VAT (Irish tax reference number).
 
diff --git a/stdnum/il/__init__.py b/stdnum/il/__init__.py
index 46809fa..185affe 100644
--- a/stdnum/il/__init__.py
+++ b/stdnum/il/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Israeli numbers."""
 
diff --git a/stdnum/il/hp.py b/stdnum/il/hp.py
index d65a32e..ada52d7 100644
--- a/stdnum/il/hp.py
+++ b/stdnum/il/hp.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Company Number (מספר חברה, or short ח.פ. Israeli company number).
 
diff --git a/stdnum/il/idnr.py b/stdnum/il/idnr.py
index 3f39ac4..38fb541 100644
--- a/stdnum/il/idnr.py
+++ b/stdnum/il/idnr.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Identity Number (Mispar Zehut, מספר זהות, Israeli identity number).
 
diff --git a/stdnum/imei.py b/stdnum/imei.py
index d6451a4..3954f7f 100644
--- a/stdnum/imei.py
+++ b/stdnum/imei.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """IMEI (International Mobile Equipment Identity).
 
diff --git a/stdnum/imo.py b/stdnum/imo.py
index 9c0ae9f..8d5bcad 100644
--- a/stdnum/imo.py
+++ b/stdnum/imo.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """IMO number (International Maritime Organization number).
 
diff --git a/stdnum/imsi.py b/stdnum/imsi.py
index 67ccd71..a04eff5 100644
--- a/stdnum/imsi.py
+++ b/stdnum/imsi.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """IMSI (International Mobile Subscriber Identity).
 
diff --git a/stdnum/in_/__init__.py b/stdnum/in_/__init__.py
index ff608c3..263fc16 100644
--- a/stdnum/in_/__init__.py
+++ b/stdnum/in_/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Indian numbers."""
 
diff --git a/stdnum/in_/aadhaar.py b/stdnum/in_/aadhaar.py
index 83f70df..6ca8aad 100644
--- a/stdnum/in_/aadhaar.py
+++ b/stdnum/in_/aadhaar.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Aadhaar (Indian personal identity number).
 
diff --git a/stdnum/in_/epic.py b/stdnum/in_/epic.py
index cc99295..dfc3e29 100644
--- a/stdnum/in_/epic.py
+++ b/stdnum/in_/epic.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """EPIC (Electoral Photo Identity Card, Indian Voter ID).
 
diff --git a/stdnum/in_/gstin.py b/stdnum/in_/gstin.py
index b39d055..15fd15e 100644
--- a/stdnum/in_/gstin.py
+++ b/stdnum/in_/gstin.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """GSTIN (Goods and Services Tax identification number, Indian VAT number).
 
diff --git a/stdnum/in_/pan.py b/stdnum/in_/pan.py
index c4d378d..00eeffc 100644
--- a/stdnum/in_/pan.py
+++ b/stdnum/in_/pan.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """PAN (Permanent Account Number, Indian income tax identifier).
 
diff --git a/stdnum/in_/vid.py b/stdnum/in_/vid.py
index 9193a0e..0db693b 100644
--- a/stdnum/in_/vid.py
+++ b/stdnum/in_/vid.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """VID (Indian personal virtual identity number).
 
diff --git a/stdnum/is_/__init__.py b/stdnum/is_/__init__.py
index aadfbd9..99b6394 100644
--- a/stdnum/is_/__init__.py
+++ b/stdnum/is_/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Icelandic numbers."""
 
diff --git a/stdnum/is_/kennitala.py b/stdnum/is_/kennitala.py
index 386fc4e..3103012 100644
--- a/stdnum/is_/kennitala.py
+++ b/stdnum/is_/kennitala.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Kennitala (Icelandic personal and organisation identity code).
 
diff --git a/stdnum/is_/vsk.py b/stdnum/is_/vsk.py
index ecc644c..76dd2a8 100644
--- a/stdnum/is_/vsk.py
+++ b/stdnum/is_/vsk.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """VSK number (Virðisaukaskattsnúmer, Icelandic VAT number).
 
diff --git a/stdnum/isan.py b/stdnum/isan.py
index 80e1400..3062b5c 100644
--- a/stdnum/isan.py
+++ b/stdnum/isan.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ISAN (International Standard Audiovisual Number).
 
diff --git a/stdnum/isbn.py b/stdnum/isbn.py
index 795a3ec..165119b 100644
--- a/stdnum/isbn.py
+++ b/stdnum/isbn.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ISBN (International Standard Book Number).
 
diff --git a/stdnum/isil.py b/stdnum/isil.py
index 85081ea..767b95c 100644
--- a/stdnum/isil.py
+++ b/stdnum/isil.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ISIL (International Standard Identifier for Libraries).
 
diff --git a/stdnum/isin.py b/stdnum/isin.py
index 7c5a9ee..545bc2d 100644
--- a/stdnum/isin.py
+++ b/stdnum/isin.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ISIN (International Securities Identification Number).
 
diff --git a/stdnum/ismn.py b/stdnum/ismn.py
index 3b07a09..ca02099 100644
--- a/stdnum/ismn.py
+++ b/stdnum/ismn.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ISMN (International Standard Music Number).
 
diff --git a/stdnum/isni.py b/stdnum/isni.py
index 8fac961..cb8b35f 100644
--- a/stdnum/isni.py
+++ b/stdnum/isni.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ISNI (International Standard Name Identifier).
 
diff --git a/stdnum/iso11649.py b/stdnum/iso11649.py
index 2d94066..16e84e5 100644
--- a/stdnum/iso11649.py
+++ b/stdnum/iso11649.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ISO 11649 (Structured Creditor Reference).
 
diff --git a/stdnum/iso6346.py b/stdnum/iso6346.py
index 1ab0afe..c7edf34 100644
--- a/stdnum/iso6346.py
+++ b/stdnum/iso6346.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ISO 6346 (International standard for container identification)
 
diff --git a/stdnum/iso7064/__init__.py b/stdnum/iso7064/__init__.py
index afc529f..c336f8d 100644
--- a/stdnum/iso7064/__init__.py
+++ b/stdnum/iso7064/__init__.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of the ISO 7064 algorithms.
 
diff --git a/stdnum/iso7064/mod_11_10.py b/stdnum/iso7064/mod_11_10.py
index 021572a..3d07469 100644
--- a/stdnum/iso7064/mod_11_10.py
+++ b/stdnum/iso7064/mod_11_10.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """The ISO 7064 Mod 11, 10 algorithm.
 
diff --git a/stdnum/iso7064/mod_11_2.py b/stdnum/iso7064/mod_11_2.py
index 736ae4d..095b6a3 100644
--- a/stdnum/iso7064/mod_11_2.py
+++ b/stdnum/iso7064/mod_11_2.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """The ISO 7064 Mod 11, 2 algorithm.
 
diff --git a/stdnum/iso7064/mod_37_2.py b/stdnum/iso7064/mod_37_2.py
index 289370e..2502c9d 100644
--- a/stdnum/iso7064/mod_37_2.py
+++ b/stdnum/iso7064/mod_37_2.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """The ISO 7064 Mod 37, 2 algorithm.
 
diff --git a/stdnum/iso7064/mod_37_36.py b/stdnum/iso7064/mod_37_36.py
index 687eee6..2d0cba5 100644
--- a/stdnum/iso7064/mod_37_36.py
+++ b/stdnum/iso7064/mod_37_36.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """The ISO 7064 Mod 37, 36 algorithm.
 
diff --git a/stdnum/iso7064/mod_97_10.py b/stdnum/iso7064/mod_97_10.py
index 4c946c4..9df5bd3 100644
--- a/stdnum/iso7064/mod_97_10.py
+++ b/stdnum/iso7064/mod_97_10.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """The ISO 7064 Mod 97, 10 algorithm.
 
diff --git a/stdnum/iso9362.py b/stdnum/iso9362.py
index 1902d3b..0dc8f60 100644
--- a/stdnum/iso9362.py
+++ b/stdnum/iso9362.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 # flake8: noqa
 
diff --git a/stdnum/isrc.py b/stdnum/isrc.py
index b71c3bd..12e5317 100644
--- a/stdnum/isrc.py
+++ b/stdnum/isrc.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ISRC (International Standard Recording Code).
 
diff --git a/stdnum/issn.py b/stdnum/issn.py
index e2960ac..86577d5 100644
--- a/stdnum/issn.py
+++ b/stdnum/issn.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ISSN (International Standard Serial Number).
 
diff --git a/stdnum/it/__init__.py b/stdnum/it/__init__.py
index 89dca80..6995eaa 100644
--- a/stdnum/it/__init__.py
+++ b/stdnum/it/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Italian numbers."""
 
diff --git a/stdnum/it/aic.py b/stdnum/it/aic.py
index 0e29c9a..937ede6 100644
--- a/stdnum/it/aic.py
+++ b/stdnum/it/aic.py
@@ -17,9 +17,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """AIC (Italian code for identification of drugs).
 
diff --git a/stdnum/it/codicefiscale.py b/stdnum/it/codicefiscale.py
index e687c8d..9618bcd 100644
--- a/stdnum/it/codicefiscale.py
+++ b/stdnum/it/codicefiscale.py
@@ -20,9 +20,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Codice Fiscale (Italian tax code for individuals).
 
diff --git a/stdnum/it/iva.py b/stdnum/it/iva.py
index f402765..1edc2d5 100644
--- a/stdnum/it/iva.py
+++ b/stdnum/it/iva.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Partita IVA (Italian VAT number).
 
diff --git a/stdnum/jp/__init__.py b/stdnum/jp/__init__.py
index 077cd25..8d6c126 100644
--- a/stdnum/jp/__init__.py
+++ b/stdnum/jp/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Japanese numbers."""
 
diff --git a/stdnum/jp/cn.py b/stdnum/jp/cn.py
index b2f7a3f..8466f40 100644
--- a/stdnum/jp/cn.py
+++ b/stdnum/jp/cn.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CN (法人番号, hōjin bangō, Japanese Corporate Number).
 
diff --git a/stdnum/jp/in_.py b/stdnum/jp/in_.py
index cdd45a1..891935b 100644
--- a/stdnum/jp/in_.py
+++ b/stdnum/jp/in_.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """IN (個人番号, kojin bangō, Japanese Individual Number).
 
diff --git a/stdnum/ke/__init__.py b/stdnum/ke/__init__.py
index de4b0d7..80500ad 100644
--- a/stdnum/ke/__init__.py
+++ b/stdnum/ke/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Kenyan numbers."""
 
diff --git a/stdnum/ke/pin.py b/stdnum/ke/pin.py
index e6262de..3838e4d 100644
--- a/stdnum/ke/pin.py
+++ b/stdnum/ke/pin.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """PIN (Personal Identification Number, Kenya tax number).
 
diff --git a/stdnum/kr/__init__.py b/stdnum/kr/__init__.py
index ed5da97..92bdfc0 100644
--- a/stdnum/kr/__init__.py
+++ b/stdnum/kr/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of South Korean numbers."""
 
diff --git a/stdnum/kr/brn.py b/stdnum/kr/brn.py
index 7f878fc..3befcec 100644
--- a/stdnum/kr/brn.py
+++ b/stdnum/kr/brn.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """BRN (사업자 등록 번호, South Korea Business Registration Number).
 
diff --git a/stdnum/kr/brn.txt b/stdnum/kr/brn.txt
new file mode 100644
index 0000000..366b976
--- /dev/null
+++ b/stdnum/kr/brn.txt
@@ -0,0 +1,666 @@
+Python 3.8.3 (default, May 14 2020, 11:03:12)
+[GCC 9.3.0] on linux
+Type "help", "copyright", "credits" or "license" for more information.
+>>> import requests
+>>> from pkg_resources import resource_filename
+>>> certificate = resource_filename('stdnum.kr.brn', 'GPKIRootCA1.crt')
+>>> certificate
+'/local/arthur/python-stdnum/stdnum/kr/GPKIRootCA1.crt'
+>>> number = '1098139795'
+>>> response = requests.get('https://www.ftc.go.kr/bizCommPop.do', 
params={'wrkr_no': number}, timeout=10, verify=certificate)
+>>> response
+<Response [200]>
+>>> response.ok
+True
+>>> import lxml.html
+
+>>> document = lxml.html.fromstring(response.text)
+>>> document.find('.//th')
+<Element th at 0x7f53f1fba3b0>
+>>> document.findall('.//th')
+[<Element th at 0x7f53f1fba3b0>, <Element th at 0x7f53f1fc1ef0>, <Element th 
at 0x7f53f1fc50e0>, <Element th at 0x7f53efbf2950>, <Element th at 
0x7f53efbf2900>, <Element th at 0x7f53efbf28b0>, <Element th at 
0x7f53efbf2860>, <Element th at 0x7f53efbf2810>, <Element th at 
0x7f53efbf27c0>, <Element th at 0x7f53efbf2770>, <Element th at 
0x7f53efbf2720>, <Element th at 0x7f53efbf26d0>, <Element th at 
0x7f53efbf2680>, <Element th at 0x7f53efbf2630>, <Element th at 
0x7f53efbf25e0>, <Element th at 0x7f53efbf2590>]
+
+
+import requests
+from pkg_resources import resource_filename
+import lxml.html
+
+
+document = lxml.html.fromstring(response.text)
+
+headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) 
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36'}
+
+
+def check_ftc(number, timeout=30):
+    url = 'https://www.ftc.go.kr/bizCommPop.do'
+    #certificate = resource_filename(__name__, 'GPKIRootCA1.crt')
+    document = lxml.html.fromstring(
+        requests.get(url, params={'wrkr_no': number}, timeout=timeout, 
verify=certificate, headers=headers).text)
+    data = dict(zip(
+        [x.text.strip() for x in document.findall('.//th')],
+        [x.text.strip() for x in document.findall('.//td')]))
+    return data or None
+
+
+
+        data.update(zip(
+            [x.text.strip() for x in result.findall('.//th')],
+            [x.text.strip() for x in result.findall('.//td/span')]))
+
+
+
+
+
+sames = defaultdict(list)
+for number in numbers:
+   sames[number[:7] + 'x'].append(number)
+complete = [number for number, values in sames.items() if len(values) == 10]
+for i in range(5):
+    number = random.choice(complete)
+    print('%s %s' % (number, ''.join(x[-1] for x in sames[number])))
+
+
+def freq(lst, start, end):
+    counts = defaultdict(int)
+    for x in lst:
+        counts[x[start:end]] += 1
+    for k, v in sorted(counts.items()):
+        print('%s %4d' % (k, v))
+
+
+
+sames = defaultdict(list)
+for number in numbers:
+   sames[number[:7] + 'x'].append(number)
+
+complete = [number for number, values in sames.items() if len(values) == 10]
+for i in range(5):
+    number = random.choice(complete)
+    print('%s %s' % (number, ''.join(x[-1] for x in sames[number])))
+
+
+
+valid = ['1018213065', '1028103525', '1028142945', '1048125258',
+'1048136565', '1048403406', '1058661489', '1078713471', '1078770962',
+'1081983613', '1098133637', '1098139795', '1101416596', '1108105034',
+'1108107390', '1108140725', '1108402173', '1130243949', '1138192367',
+'1138621886', '1138638602', '1148600579', '1148604968', '1148661464',
+'1168200276', '1178177714', '1191996781', '1198644529', '1208157465',
+'1208639706', '1208200052', '1248179802', '1283949844', '1288177295',
+'1298638970', '1298639907', '1308192528', '1308689294', '1328604520',
+'1348624634', '1348672683', '1350924640', '1352980067', '1358106333',
+'1418118585', '1448125090', '1480500404', '1562300883', '1698600394',
+'1839800113', '1938600010', '2018199798', '2018517396', '2028104367',
+'2040691556', '2048646427', '2068650913', '2088124115', '2118608983',
+'2118623306', '2118767960', '2141158465', '2148104230', '2148778980',
+'2148798889', '2148851159', '2158786862', '2178114493', '2190139810',
+'2208183676', '2208718070', '2208875699', '2208888699', '2248141168',
+'2758701259', '2808601410', '3018191475', '3018612266', '3031273313',
+'3058138564', '3058170638', '3058187876', '3121225168', '3123006675',
+'3148125684', '3148653230', '3188102096', '3218100982', '3481300692',
+'3648100669', '3833700143', '4028215272', '4102553731', '4150683258',
+'5012678904', '5038609407', '5048185233', '5150768272', '5684100305',
+'5829000497', '6028166559', '6158211718', '6162512643', '6178611575',
+'6498200117', '6808700210', '7668800563', '7828600130', '8098101574',
+'8168100840', '8841701026']
+
+valid = ['1018213065', '1028103525', '1028142945', '1048125258',
+'1048136565', '1048403406', '1058661489', '1078713471', '1078770962',
+'1081983613', '1098133637', '1098139795', '1101416596', '1108105034',
+'1108107390', '1108140725', '1108402173', '1130243949', '1138192367',
+'1138621886', '1138638602', '1148600579', '1148604968', '1148661464',
+'1168200276', '1178177714', '1191996781', '1198644529', '1208157465',
+'1208200052', '1208639706', '1248179802', '1283949844', '1288177295',
+'1298638970', '1298639907', '1308192528', '1308689294', '1328604520',
+'1348624634', '1348672683', '1350924640', '1352980067', '1358106333',
+'1418118585', '1448125090', '1480500404', '1562300883', '1698600394',
+'1839800113', '1938600010', '2018199798', '2018517396', '2028104367',
+'2040691556', '2048646427', '2068650913', '2088124115', '2118608983',
+'2118623306', '2118767960', '2122529409', '2141158465', '2148104230',
+'2148778980', '2148798889', '2148851159', '2158786862', '2178114493',
+'2190139810', '2208183676', '2208718070', '2208875699', '2208888699',
+'2248141168', '2758701259', '2808601410', '3018191475', '3018612266',
+'3031273313', '3058138564', '3058170638', '3058187876', '3090151285',
+'3090152187', '3090152284', '3090152299', '3121225168', '3123006675',
+'3148125684', '3148653230', '3188102096', '3218100982', '3481300692',
+'3648100669', '3833700143', '4028215272', '4102553731', '4150683258',
+'4558600621', '4750300791', '5012678904', '5038609407', '5048185233',
+'5150768272', '5684100305', '5829000497', '6028166559', '6158211718',
+'6162512643', '6178611575', '6498200117', '6808700210', '7668800563',
+'7828600130', '8098101574', '8168100840', '8841701026', '8841701220']
+
+
+
+def find(number):
+    for x in range(10):
+        for c in range(10):
+            n = number.replace('x', str(x)) + str(c)
+            print(n)
+            if check_ftc(n):
+                yield n
+
+
+'1358106333'
+
+candidates = list(find('1358106x'))
+
+
+# begin with analysis of check digit frequency
+
+[16, 3, 9, 14, 12, 15, 13, 9, 9, 11]
+
+
+# >>> [int( y * 100 / 111 - 10) for x,y in sorted(counts.items())]
+[4, -7, -1, 2, 0, 3, 1, -1, -1, 0]
+
+# so 0 and 5 are more likely while 1 is considerably less likely
+
+
+'8841701026'
+candidates = list(find('88417010x'))
+['8841701026']
+
+candidates = list(find('8841701x2'))
+['8841701026', '8841701220']
+
+candidates = list(find('884170x02'))
+['8841701026']
+
+# USE THIS TO SAVE RESULTS TO REBUILD checked BETWEEN RUNS
+valid = sorted(k for k, v in checked.items() if v)
+['1018213065', '1028103525', '1028142945', '1048125258', '1048136565',
+'1048403406', '1058661489', '1078713471', '1078770962', '1081983613',
+'1098133637', '1098139795', '1101416596', '1108105034', '1108107390',
+'1108140725', '1108402173', '1130243949', '1138192367', '1138621886',
+'1138638602', '1148600579', '1148604968', '1148661464', '1168200276',
+'1178177714', '1191996781', '1198644529', '1208157465', '1208200052',
+'1208639706', '1248179802', '1283949844', '1288177295', '1298638970',
+'1298639907', '1308192528', '1308689294', '1328604520', '1348624634',
+'1348672683', '1350924640', '1352980067', '1358106333', '1418118585',
+'1448125090', '1480500404', '1562300883', '1698600394', '1839800113',
+'1938600010', '2018199798', '2018517396', '2028104367', '2040691556',
+'2048646427', '2068650913', '2088124115', '2118608983', '2118623306',
+'2118767960', '2141158465', '2148104230', '2148778980', '2148798889',
+'2148851159', '2158786862', '2178114493', '2190139810', '2208183676',
+'2208718070', '2208875699', '2208888699', '2248141168', '2758701259',
+'2808601410', '3018191475', '3018612266', '3031273313', '3058138564',
+'3058170638', '3058187876', '3090151285', '3090152187', '3090152284',
+'3090152299', '3121225168', '3123006675', '3148125684', '3148653230',
+'3188102096', '3218100982', '3481300692', '3648100669', '3833700143',
+'4028215272', '4102553731', '4150683258', '5012678904', '5038609407',
+'5048185233', '5150768272', '5684100305', '5829000497', '6028166559',
+'6158211718', '6162512643', '6178611575', '6498200117', '6808700210',
+'7668800563', '7828600130', '8098101574', '8168100840', '8841701026',
+'8841701220']
+
+
+invalid = sorted(k for k, v in checked.items() if not v)
+['0090152280', '0090152281', '0090152282', '0090152283', '0090152284',
+'0090152285', '0090152286', '0090152287', '0090152288', '0090152289',
+'1051741513', '1068207200', '1078209351', '1090152280', '1090152281',
+'1090152282', '1090152283', '1090152284', '1090152285', '1090152286',
+'1090152287', '1090152288', '1090152289', '1098162393', '1101239727',
+'1108005030', '1108005031', '1108005032', '1108005033', '1108005034',
+'1108005035', '1108005036', '1108005037', '1108005038', '1108005039',
+'1108100000', '1108100001', '1108100002', '1108100003', '1108100004',
+'1108100005', '1108100006', '1108100007', '1108100008', '1108100009',
+'1108100010', '1108100011', '1108100012', '1108100013', '1108100014',
+'1108100015', '1108100016', '1108100017', '1108100018', '1108100019',
+'1108100020', '1108100021', '1108100022', '1108100023', '1108100024',
+'1108100025', '1108100026', '1108100027', '1108100028', '1108100029',
+'1108100030', '1108100031', '1108100032', '1108100033', '1108100034',
+'1108100035', '1108100036', '1108100037', '1108100038', '1108100039',
+'1108100040', '1108100041', '1108100042', '1108100043', '1108100044',
+'1108100045', '1108100046', '1108100047', '1108100048', '1108100049',
+'1108100050', '1108100051', '1108100052', '1108100053', '1108100054',
+'1108100055', '1108100056', '1108100057', '1108100058', '1108100059',
+'1108100060', '1108100061', '1108100062', '1108100063', '1108100064',
+'1108100065', '1108100066', '1108100067', '1108100068', '1108100069',
+'1108100070', '1108100071', '1108100072', '1108100073', '1108100074',
+'1108100075', '1108100076', '1108100077', '1108100078', '1108100079',
+'1108100080', '1108100081', '1108100082', '1108100083', '1108100084',
+'1108100085', '1108100086', '1108100087', '1108100088', '1108100089',
+'1108100090', '1108100091', '1108100092', '1108100093', '1108100094',
+'1108100095', '1108100096', '1108100097', '1108100098', '1108100099',
+'1108101030', '1108101031', '1108101032', '1108101033', '1108101034',
+'1108101035', '1108101036', '1108101037', '1108101038', '1108101039',
+'1108102030', '1108102031', '1108102032', '1108102033', '1108102034',
+'1108102035', '1108102036', '1108102037', '1108102038', '1108102039',
+'1108103030', '1108103031', '1108103032', '1108103033', '1108103034',
+'1108103035', '1108103036', '1108103037', '1108103038', '1108103039',
+'1108104030', '1108104031', '1108104032', '1108104033', '1108104034',
+'1108104035', '1108104036', '1108104037', '1108104038', '1108104039',
+'1108105000', '1108105001', '1108105002', '1108105003', '1108105004',
+'1108105005', '1108105006', '1108105007', '1108105008', '1108105009',
+'1108105010', '1108105011', '1108105012', '1108105013', '1108105014',
+'1108105015', '1108105016', '1108105017', '1108105018', '1108105019',
+'1108105020', '1108105021', '1108105022', '1108105023', '1108105024',
+'1108105025', '1108105026', '1108105027', '1108105028', '1108105029',
+'1108105030', '1108105031', '1108105032', '1108105033', '1108105035',
+'1108105036', '1108105037', '1108105038', '1108105039', '1108105040',
+'1108105041', '1108105042', '1108105043', '1108105044', '1108105045',
+'1108105046', '1108105047', '1108105048', '1108105049', '1108105050',
+'1108105051', '1108105052', '1108105053', '1108105054', '1108105055',
+'1108105056', '1108105057', '1108105058', '1108105059', '1108105060',
+'1108105061', '1108105062', '1108105063', '1108105064', '1108105065',
+'1108105066', '1108105067', '1108105068', '1108105069', '1108105070',
+'1108105071', '1108105072', '1108105073', '1108105074', '1108105075',
+'1108105076', '1108105077', '1108105078', '1108105079', '1108105080',
+'1108105081', '1108105082', '1108105083', '1108105084', '1108105085',
+'1108105086', '1108105087', '1108105088', '1108105089', '1108105090',
+'1108105091', '1108105092', '1108105093', '1108105094', '1108105095',
+'1108105096', '1108105097', '1108105098', '1108105099', '1108105130',
+'1108105131', '1108105132', '1108105133', '1108105134', '1108105135',
+'1108105136', '1108105137', '1108105138', '1108105139', '1108105230',
+'1108105231', '1108105232', '1108105233', '1108105234', '1108105235',
+'1108105236', '1108105237', '1108105238', '1108105239', '1108105330',
+'1108105331', '1108105332', '1108105333', '1108105334', '1108105335',
+'1108105336', '1108105337', '1108105338', '1108105339', '1108105430',
+'1108105431', '1108105432', '1108105433', '1108105434', '1108105435',
+'1108105436', '1108105437', '1108105438', '1108105439', '1108105530',
+'1108105531', '1108105532', '1108105533', '1108105534', '1108105535',
+'1108105536', '1108105537', '1108105538', '1108105539', '1108105630',
+'1108105631', '1108105632', '1108105633', '1108105634', '1108105635',
+'1108105636', '1108105637', '1108105638', '1108105639', '1108105730',
+'1108105731', '1108105732', '1108105733', '1108105734', '1108105735',
+'1108105736', '1108105737', '1108105738', '1108105739', '1108105830',
+'1108105831', '1108105832', '1108105833', '1108105834', '1108105835',
+'1108105836', '1108105837', '1108105838', '1108105839', '1108105930',
+'1108105931', '1108105932', '1108105933', '1108105934', '1108105935',
+'1108105936', '1108105937', '1108105938', '1108105939', '1108106030',
+'1108106031', '1108106032', '1108106033', '1108106034', '1108106035',
+'1108106036', '1108106037', '1108106038', '1108106039', '1108107030',
+'1108107031', '1108107032', '1108107033', '1108107034', '1108107035',
+'1108107036', '1108107037', '1108107038', '1108107039', '1108108030',
+'1108108031', '1108108032', '1108108033', '1108108034', '1108108035',
+'1108108036', '1108108037', '1108108038', '1108108039', '1108109030',
+'1108109031', '1108109032', '1108109033', '1108109034', '1108109035',
+'1108109036', '1108109037', '1108109038', '1108109039', '1108115000',
+'1108115001', '1108115002', '1108115003', '1108115004', '1108115005',
+'1108115006', '1108115007', '1108115008', '1108115009', '1108115010',
+'1108115011', '1108115012', '1108115013', '1108115014', '1108115015',
+'1108115016', '1108115017', '1108115018', '1108115019', '1108115020',
+'1108115021', '1108115022', '1108115023', '1108115024', '1108115025',
+'1108115026', '1108115027', '1108115028', '1108115029', '1108115030',
+'1108115031', '1108115032', '1108115033', '1108115034', '1108115035',
+'1108115036', '1108115037', '1108115038', '1108115039', '1108115040',
+'1108115041', '1108115042', '1108115043', '1108115044', '1108115045',
+'1108115046', '1108115047', '1108115048', '1108115049', '1108115050',
+'1108115051', '1108115052', '1108115053', '1108115054', '1108115055',
+'1108115056', '1108115057', '1108115058', '1108115059', '1108115060',
+'1108115061', '1108115062', '1108115063', '1108115064', '1108115065',
+'1108115066', '1108115067', '1108115068', '1108115069', '1108115070',
+'1108115071', '1108115072', '1108115073', '1108115074', '1108115075',
+'1108115076', '1108115077', '1108115078', '1108115079', '1108115080',
+'1108115081', '1108115082', '1108115083', '1108115084', '1108115085',
+'1108115086', '1108115087', '1108115088', '1108115089', '1108115090',
+'1108115091', '1108115092', '1108115093', '1108115094', '1108115095',
+'1108115096', '1108115097', '1108115098', '1108115099', '1108125030',
+'1108125031', '1108125032', '1108125033', '1108125034', '1108125035',
+'1108125036', '1108125037', '1108125038', '1108125039', '1108135030',
+'1108135031', '1108135032', '1108135033', '1108135034', '1108135035',
+'1108135036', '1108135037', '1108135038', '1108135039', '1108145030',
+'1108145031', '1108145032', '1108145033', '1108145034', '1108145035',
+'1108145036', '1108145037', '1108145038', '1108145039', '1108155030',
+'1108155031', '1108155032', '1108155033', '1108155034', '1108155035',
+'1108155036', '1108155037', '1108155038', '1108155039', '1108165030',
+'1108165031', '1108165032', '1108165033', '1108165034', '1108165035',
+'1108165036', '1108165037', '1108165038', '1108165039', '1108175030',
+'1108175031', '1108175032', '1108175033', '1108175034', '1108175035',
+'1108175036', '1108175037', '1108175038', '1108175039', '1108185030',
+'1108185031', '1108185032', '1108185033', '1108185034', '1108185035',
+'1108185036', '1108185037', '1108185038', '1108185039', '1108195030',
+'1108195031', '1108195032', '1108195033', '1108195034', '1108195035',
+'1108195036', '1108195037', '1108195038', '1108195039', '1108205030',
+'1108205031', '1108205032', '1108205033', '1108205034', '1108205035',
+'1108205036', '1108205037', '1108205038', '1108205039', '1108305030',
+'1108305031', '1108305032', '1108305033', '1108305034', '1108305035',
+'1108305036', '1108305037', '1108305038', '1108305039', '1108405030',
+'1108405031', '1108405032', '1108405033', '1108405034', '1108405035',
+'1108405036', '1108405037', '1108405038', '1108405039', '1108505030',
+'1108505031', '1108505032', '1108505033', '1108505034', '1108505035',
+'1108505036', '1108505037', '1108505038', '1108505039', '1108605030',
+'1108605031', '1108605032', '1108605033', '1108605034', '1108605035',
+'1108605036', '1108605037', '1108605038', '1108605039', '1108705030',
+'1108705031', '1108705032', '1108705033', '1108705034', '1108705035',
+'1108705036', '1108705037', '1108705038', '1108705039', '1108805030',
+'1108805031', '1108805032', '1108805033', '1108805034', '1108805035',
+'1108805036', '1108805037', '1108805038', '1108805039', '1108905030',
+'1108905031', '1108905032', '1108905033', '1108905034', '1108905035',
+'1108905036', '1108905037', '1108905038', '1108905039', '1128130811',
+'1138526486', '1138646500', '1138660856', '1148144645', '1148262150',
+'1188109714', '1190243947', '1198208146', '1198263265', '1198679111',
+'1198708063', '1218125326', '1218142209', '1218178347', '1228162455',
+'1248613144', '1248665341', '1248685333', '1271187351', '1280241206',
+'1288163302', '1298116573', '1298123356', '1298130691', '1298185385',
+'1304717700', '1308635857', '1308679710', '1318200372', '1318640843',
+'1328138608', '1338129441', '1338132077', '1338140621', '1348106679',
+'1348644004', '135810600', '135810601', '135810602', '135810603',
+'135810604', '135810605', '135810606', '135810607', '135810608', '135810609',
+'135810610', '135810611', '135810612', '135810613', '135810614', '135810615',
+'135810616', '135810617', '135810618', '135810619', '135810620', '135810621',
+'135810622', '135810623', '135810624', '135810625', '135810626', '135810627',
+'135810628', '135810629', '135810630', '1358106300', '1358106301',
+'1358106302', '1358106303', '1358106304', '1358106305', '1358106306',
+'1358106307', '1358106308', '1358106309', '135810631', '1358106310',
+'1358106311', '1358106312', '1358106313', '1358106314', '1358106315',
+'1358106316', '1358106317', '1358106318', '1358106319', '135810632',
+'1358106320', '1358106321', '1358106322', '1358106323', '1358106324',
+'1358106325', '1358106326', '1358106327', '1358106328', '1358106329',
+'135810633', '1358106330', '1358106331', '1358106332', '1358106334',
+'1358106335', '1358106336', '1358106337', '1358106338', '1358106339',
+'1358106340', '1358106341', '1358106342', '1358106343', '1358106344',
+'1358106345', '1358106346', '1358106347', '1358106348', '1358106349',
+'1358106350', '1358106351', '1358106352', '1358106353', '1358106354',
+'1358106355', '1358106356', '1358106357', '1358106358', '1358106359',
+'1358106360', '1358106361', '1358106362', '1358106363', '1358106364',
+'1358106365', '1358106366', '1358106367', '1358106368', '1358106369',
+'1358106370', '1358106371', '1358106372', '1358106373', '1358106374',
+'1358106375', '1358106376', '1358106377', '1358106378', '1358106379',
+'1358106380', '1358106381', '1358106382', '1358106383', '1358106384',
+'1358106385', '1358106386', '1358106387', '1358106388', '1358106389',
+'1358106390', '1358106391', '1358106392', '1358106393', '1358106394',
+'1358106395', '1358106396', '1358106397', '1358106398', '1358106399',
+'1378639058', '1388103499', '1388144092', '1388144277', '1408167744',
+'1438110463', '1878200055', '2018154845', '2018176228', '2018625781',
+'2028142420', '2058126341', '2061812345', '2090152280', '2090152281',
+'2090152282', '2090152283', '2090152284', '2090152285', '2090152286',
+'2090152287', '2090152288', '2090152289', '2098205326', '2098206382',
+'2118639754', '2148799743', '2148849333', '2208166148', '2208205060',
+'2208757205', '2208869974', '2218132210', '2218301195', '2228103192',
+'2318102896', '2798101263', '3018114992', '3018262166', '3038144911',
+'3038207378', '3068122629', '3068200417', '3088141001', '3090051280',
+'3090051281', '3090051282', '3090051283', '3090051284', '3090051285',
+'3090051286', '3090051287', '3090051288', '3090051289', '3090101280',
+'3090101281', '3090101282', '3090101283', '3090101284', '3090101285',
+'3090101286', '3090101287', '3090101288', '3090101289', '3090102280',
+'3090102281', '3090102282', '3090102283', '3090102284', '3090102285',
+'3090102286', '3090102287', '3090102288', '3090102289', '3090111280',
+'3090111281', '3090111282', '3090111283', '3090111284', '3090111285',
+'3090111286', '3090111287', '3090111288', '3090111289', '3090112280',
+'3090112281', '3090112282', '3090112283', '3090112284', '3090112285',
+'3090112286', '3090112287', '3090112288', '3090112289', '3090121280',
+'3090121281', '3090121282', '3090121283', '3090121284', '3090121285',
+'3090121286', '3090121287', '3090121288', '3090121289', '3090122280',
+'3090122281', '3090122282', '3090122283', '3090122284', '3090122285',
+'3090122286', '3090122287', '3090122288', '3090122289', '3090131280',
+'3090131281', '3090131282', '3090131283', '3090131284', '3090131285',
+'3090131286', '3090131287', '3090131288', '3090131289', '3090132280',
+'3090132281', '3090132282', '3090132283', '3090132284', '3090132285',
+'3090132286', '3090132287', '3090132288', '3090132289', '3090141280',
+'3090141281', '3090141282', '3090141283', '3090141284', '3090141285',
+'3090141286', '3090141287', '3090141288', '3090141289', '3090142280',
+'3090142281', '3090142282', '3090142283', '3090142284', '3090142285',
+'3090142286', '3090142287', '3090142288', '3090142289', '3090150280',
+'3090150281', '3090150282', '3090150283', '3090150284', '3090150285',
+'3090150286', '3090150287', '3090150288', '3090150289', '3090151280',
+'3090151281', '3090151282', '3090151283', '3090151284', '3090151286',
+'3090151287', '3090151288', '3090151289', '3090152080', '3090152081',
+'3090152082', '3090152083', '3090152084', '3090152085', '3090152086',
+'3090152087', '3090152088', '3090152089', '3090152180', '3090152181',
+'3090152182', '3090152183', '3090152184', '3090152185', '3090152186',
+'3090152188', '3090152189', '3090152200', '3090152201', '3090152202',
+'3090152203', '3090152204', '3090152205', '3090152206', '3090152207',
+'3090152208', '3090152209', '3090152210', '3090152211', '3090152212',
+'3090152213', '3090152214', '3090152215', '3090152216', '3090152217',
+'3090152218', '3090152219', '3090152220', '3090152221', '3090152222',
+'3090152223', '3090152224', '3090152225', '3090152226', '3090152227',
+'3090152228', '3090152229', '3090152230', '3090152231', '3090152232',
+'3090152233', '3090152234', '3090152235', '3090152236', '3090152237',
+'3090152238', '3090152239', '3090152240', '3090152241', '3090152242',
+'3090152243', '3090152244', '3090152245', '3090152246', '3090152247',
+'3090152248', '3090152249', '3090152250', '3090152251', '3090152252',
+'3090152253', '3090152254', '3090152255', '3090152256', '3090152257',
+'3090152258', '3090152259', '3090152260', '3090152261', '3090152262',
+'3090152263', '3090152264', '3090152265', '3090152266', '3090152267',
+'3090152268', '3090152269', '3090152270', '3090152271', '3090152272',
+'3090152273', '3090152274', '3090152275', '3090152276', '3090152277',
+'3090152278', '3090152279', '3090152280', '3090152281', '3090152282',
+'3090152283', '3090152285', '3090152286', '3090152287', '3090152288',
+'3090152289', '3090152290', '3090152291', '3090152292', '3090152293',
+'3090152294', '3090152295', '3090152296', '3090152297', '3090152298',
+'3090152380', '3090152381', '3090152382', '3090152383', '3090152384',
+'3090152385', '3090152386', '3090152387', '3090152388', '3090152389',
+'3090152480', '3090152481', '3090152482', '3090152483', '3090152484',
+'3090152485', '3090152486', '3090152487', '3090152488', '3090152489',
+'3090152580', '3090152581', '3090152582', '3090152583', '3090152584',
+'3090152585', '3090152586', '3090152587', '3090152588', '3090152589',
+'3090152680', '3090152681', '3090152682', '3090152683', '3090152684',
+'3090152685', '3090152686', '3090152687', '3090152688', '3090152689',
+'3090152780', '3090152781', '3090152782', '3090152783', '3090152784',
+'3090152785', '3090152786', '3090152787', '3090152788', '3090152789',
+'3090152880', '3090152881', '3090152882', '3090152883', '3090152884',
+'3090152885', '3090152886', '3090152887', '3090152888', '3090152889',
+'3090152980', '3090152981', '3090152982', '3090152983', '3090152984',
+'3090152985', '3090152986', '3090152987', '3090152988', '3090152989',
+'3090153280', '3090153281', '3090153282', '3090153283', '3090153284',
+'3090153285', '3090153286', '3090153287', '3090153288', '3090153289',
+'3090154280', '3090154281', '3090154282', '3090154283', '3090154284',
+'3090154285', '3090154286', '3090154287', '3090154288', '3090154289',
+'3090155280', '3090155281', '3090155282', '3090155283', '3090155284',
+'3090155285', '3090155286', '3090155287', '3090155288', '3090155289',
+'3090156280', '3090156281', '3090156282', '3090156283', '3090156284',
+'3090156285', '3090156286', '3090156287', '3090156288', '3090156289',
+'3090157280', '3090157281', '3090157282', '3090157283', '3090157284',
+'3090157285', '3090157286', '3090157287', '3090157288', '3090157289',
+'3090158280', '3090158281', '3090158282', '3090158283', '3090158284',
+'3090158285', '3090158286', '3090158287', '3090158288', '3090158289',
+'3090159280', '3090159281', '3090159282', '3090159283', '3090159284',
+'3090159285', '3090159286', '3090159287', '3090159288', '3090159289',
+'3090161280', '3090161281', '3090161282', '3090161283', '3090161284',
+'3090161285', '3090161286', '3090161287', '3090161288', '3090161289',
+'3090162280', '3090162281', '3090162282', '3090162283', '3090162284',
+'3090162285', '3090162286', '3090162287', '3090162288', '3090162289',
+'3090171280', '3090171281', '3090171282', '3090171283', '3090171284',
+'3090171285', '3090171286', '3090171287', '3090171288', '3090171289',
+'3090172280', '3090172281', '3090172282', '3090172283', '3090172284',
+'3090172285', '3090172286', '3090172287', '3090172288', '3090172289',
+'3090181280', '3090181281', '3090181282', '3090181283', '3090181284',
+'3090181285', '3090181286', '3090181287', '3090181288', '3090181289',
+'3090182280', '3090182281', '3090182282', '3090182283', '3090182284',
+'3090182285', '3090182286', '3090182287', '3090182288', '3090182289',
+'3090191280', '3090191281', '3090191282', '3090191283', '3090191284',
+'3090191285', '3090191286', '3090191287', '3090191288', '3090191289',
+'3090192280', '3090192281', '3090192282', '3090192283', '3090192284',
+'3090192285', '3090192286', '3090192287', '3090192288', '3090192289',
+'3090251280', '3090251281', '3090251282', '3090251283', '3090251284',
+'3090251285', '3090251286', '3090251287', '3090251288', '3090251289',
+'3090351280', '3090351281', '3090351282', '3090351283', '3090351284',
+'3090351285', '3090351286', '3090351287', '3090351288', '3090351289',
+'3090451280', '3090451281', '3090451282', '3090451283', '3090451284',
+'3090451285', '3090451286', '3090451287', '3090451288', '3090451289',
+'3090551280', '3090551281', '3090551282', '3090551283', '3090551284',
+'3090551285', '3090551286', '3090551287', '3090551288', '3090551289',
+'3090651280', '3090651281', '3090651282', '3090651283', '3090651284',
+'3090651285', '3090651286', '3090651287', '3090651288', '3090651289',
+'3090751280', '3090751281', '3090751282', '3090751283', '3090751284',
+'3090751285', '3090751286', '3090751287', '3090751288', '3090751289',
+'3090851280', '3090851281', '3090851282', '3090851283', '3090851284',
+'3090851285', '3090851286', '3090851287', '3090851288', '3090851289',
+'3090951280', '3090951281', '3090951282', '3090951283', '3090951284',
+'3090951285', '3090951286', '3090951287', '3090951288', '3090951289',
+'3118122413', '3128195317', '3148201980', '3148600956', '3148642432',
+'3148663209', '3178104543', '3178111175', '3748101516', '3751000859',
+'3758800519', '3949200410', '3988500113', '4090152280', '4090152281',
+'4090152282', '4090152283', '4090152284', '4090152285', '4090152286',
+'4090152287', '4090152288', '4090152289', '4098633769', '4108283844',
+'4108653770', '4158119511', '4158211025', '4168148042', '4178507912',
+'4208700883', '5048511802', '5068206755', '5090152280', '5090152281',
+'5090152282', '5090152283', '5090152284', '5090152285', '5090152286',
+'5090152287', '5090152288', '5090152289', '5148168599', '5150462016',
+'5150532580', '5158110315', '5158140648', '5338500526', '5338701306',
+'5531436227', '5802100836', '6038124270', '6068154507', '6068606989',
+'6090152280', '6090152281', '6090152282', '6090152283', '6090152284',
+'6090152285', '6090152286', '6090152287', '6090152288', '6090152289',
+'6098199124', '6100984339', '6108104971', '6158609068', '6162446281',
+'6211541743', '6321101006', '6398600985', '6698100996', '6828500885',
+'7090152280', '7090152281', '7090152282', '7090152283', '7090152284',
+'7090152285', '7090152286', '7090152287', '7090152288', '7090152289',
+'7288600316', '7358500501', '7600600079', '8090152280', '8090152281',
+'8090152282', '8090152283', '8090152284', '8090152285', '8090152286',
+'8090152287', '8090152288', '8090152289', '8841700020', '8841700021',
+'8841700022', '8841700023', '8841700024', '8841700025', '8841700026',
+'8841700027', '8841700028', '8841700029', '8841701000', '8841701001',
+'8841701002', '8841701003', '8841701004', '8841701005', '8841701006',
+'8841701007', '8841701008', '8841701009', '8841701010', '8841701011',
+'8841701012', '8841701013', '8841701014', '8841701015', '8841701016',
+'8841701017', '8841701018', '8841701019', '8841701020', '8841701021',
+'8841701022', '8841701023', '8841701024', '8841701025', '8841701027',
+'8841701028', '8841701029', '8841701030', '8841701031', '8841701032',
+'8841701033', '8841701034', '8841701035', '8841701036', '8841701037',
+'8841701038', '8841701039', '8841701040', '8841701041', '8841701042',
+'8841701043', '8841701044', '8841701045', '8841701046', '8841701047',
+'8841701048', '8841701049', '8841701050', '8841701051', '8841701052',
+'8841701053', '8841701054', '8841701055', '8841701056', '8841701057',
+'8841701058', '8841701059', '8841701060', '8841701061', '8841701062',
+'8841701063', '8841701064', '8841701065', '8841701066', '8841701067',
+'8841701068', '8841701069', '8841701070', '8841701071', '8841701072',
+'8841701073', '8841701074', '8841701075', '8841701076', '8841701077',
+'8841701078', '8841701079', '8841701080', '8841701081', '8841701082',
+'8841701083', '8841701084', '8841701085', '8841701086', '8841701087',
+'8841701088', '8841701089', '8841701090', '8841701091', '8841701092',
+'8841701093', '8841701094', '8841701095', '8841701096', '8841701097',
+'8841701098', '8841701099', '8841701120', '8841701121', '8841701122',
+'8841701123', '8841701124', '8841701125', '8841701126', '8841701127',
+'8841701128', '8841701129', '8841701221', '8841701222', '8841701223',
+'8841701224', '8841701225', '8841701226', '8841701227', '8841701228',
+'8841701229', '8841701320', '8841701321', '8841701322', '8841701323',
+'8841701324', '8841701325', '8841701326', '8841701327', '8841701328',
+'8841701329', '8841701420', '8841701421', '8841701422', '8841701423',
+'8841701424', '8841701425', '8841701426', '8841701427', '8841701428',
+'8841701429', '8841701520', '8841701521', '8841701522', '8841701523',
+'8841701524', '8841701525', '8841701526', '8841701527', '8841701528',
+'8841701529', '8841701620', '8841701621', '8841701622', '8841701623',
+'8841701624', '8841701625', '8841701626', '8841701627', '8841701628',
+'8841701629', '8841701720', '8841701721', '8841701722', '8841701723',
+'8841701724', '8841701725', '8841701726', '8841701727', '8841701728',
+'8841701729', '8841701820', '8841701821', '8841701822', '8841701823',
+'8841701824', '8841701825', '8841701826', '8841701827', '8841701828',
+'8841701829', '8841701920', '8841701921', '8841701922', '8841701923',
+'8841701924', '8841701925', '8841701926', '8841701927', '8841701928',
+'8841701929', '8841702020', '8841702021', '8841702022', '8841702023',
+'8841702024', '8841702025', '8841702026', '8841702027', '8841702028',
+'8841702029', '8841703020', '8841703021', '8841703022', '8841703023',
+'8841703024', '8841703025', '8841703026', '8841703027', '8841703028',
+'8841703029', '8841704020', '8841704021', '8841704022', '8841704023',
+'8841704024', '8841704025', '8841704026', '8841704027', '8841704028',
+'8841704029', '8841705020', '8841705021', '8841705022', '8841705023',
+'8841705024', '8841705025', '8841705026', '8841705027', '8841705028',
+'8841705029', '8841706020', '8841706021', '8841706022', '8841706023',
+'8841706024', '8841706025', '8841706026', '8841706027', '8841706028',
+'8841706029', '8841707020', '8841707021', '8841707022', '8841707023',
+'8841707024', '8841707025', '8841707026', '8841707027', '8841707028',
+'8841707029', '8841708020', '8841708021', '8841708022', '8841708023',
+'8841708024', '8841708025', '8841708026', '8841708027', '8841708028',
+'8841708029', '8841709020', '8841709021', '8841709022', '8841709023',
+'8841709024', '8841709025', '8841709026', '8841709027', '8841709028',
+'8841709029', '9090152280', '9090152281', '9090152282', '9090152283',
+'9090152284', '9090152285', '9090152286', '9090152287', '9090152288',
+'9090152289']
+
+list(find('30901522x'))
+['3090152284', '3090152299']  8->9  4->9
+
+
+
+#weights = (2, 3, 4, 5, 6, 7, 8, 9, 2, 3, 4, 5)
+
+weights = (4, 5, 6, 7, 8, 9, 2, 3, 4)
+
+
+def calc_check_digit(number):
+    """Calculate the check digit."""
+    check = sum(w * int(n) for w, n in zip(weights, number))
+    return str((11 - (check % 11)) % 10)
+
+
+most popular first three digits:
+['110', '214']
+
+most popular company types
+['86', '81']
+
+most popular prefixes:
+['11081', '11486', '30581']
+
+
+>>> [x for x in valid if x.startswith('11081')]
+['1108105034', '1108107390', '1108140725']
+>>> list(find('11081050x'))
+['1108105034']
+>>> list(find('1108105x3'))
+['1108105034']
+>>> list(find('110810x03'))
+['1108105034']
+>>> list(find('11081x503'))
+['1108105034']
+>>> list(find('1108x0503'))
+['1108105034']
+>>> list(find('11081000x'))
+[]
+>>> list(find('11081150x'))
+[]
+>>> list(find('30901522x'))
+['3090152284', '3090152299']        8->9: 4->9      (5?)
+>>> list(find('3090152x8'))
+['3090152187', '3090152284']        1->2: 7->4      (8?)
+>>> list(find('309015x28'))
+['3090151285', '3090152284']        1->2: 5->4      (10?)
+>>> list(find('30901x228'))
+['3090152284']
+>>> list(find('30901x128'))
+>>> list(find('30901x128'))
+['3090151285']
+>>> list(find('3090x5128'))
+['3090151285']
+
+
+# 214-81-0011?
+
+
+checked = {}
+
+def check_ftc(number, timeout=30):  # pragma: no cover
+    """Check the number against the Korea Fair Trade Commission website."""
+    from pkg_resources import resource_filename
+    import lxml.html
+    import requests
+    number = compact(number)
+    if number in checked:
+        return checked[number]
+    url = 'https://www.ftc.go.kr/bizCommPop.do'
+    certificate = resource_filename(__name__, 'GPKIRootCA1.crt')
+    document = lxml.html.fromstring(
+        requests.get(url, params={'wrkr_no': number}, timeout=timeout, 
verify=certificate).text)
+    data = dict(zip(
+        [(x.text or '').strip() for x in document.findall('.//th')],
+        [(x.text or '').strip() for x in document.findall('.//td')]))
+    checked[number] = data or None
+    return data or None
+
+
+def check(number):
+    return not (number[:3] < '101' or number[3:5] == '00' or number[5:-1] == 
'0000')
+
+
+while True:
+    number = ''.join(random.choice('0123456789') for x in range(10))
+    if not (number[:3] < '101' or number[3:5] == '00' or number[5:-1] == 
'0000'):
+        print(number)
+        if number not in valid and number not in invalid:
+            try:
+                if check_ftc(number, 60):
+                    valid.add(number)
+                    validfile.write('%s\n' % number)
+                    invalidfile.flush()
+                else:
+                    invalid.add(number)
+                    invalidfile.write('%s\n' % number)
+                    invalidfile.flush()
+            except:
+                traceback.print_exc()
+        time.sleep(1)
+
+
+The above resulted in 8 valid numbers in about 2.5 months time. Most of the 
time
+the service was unavailable and it seems they changed their CA certificate at 
some point.
diff --git a/stdnum/kr/rrn.py b/stdnum/kr/rrn.py
index cffa1e6..9a8bf8e 100644
--- a/stdnum/kr/rrn.py
+++ b/stdnum/kr/rrn.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """RRN (South Korean resident registration number).
 
diff --git a/stdnum/lei.py b/stdnum/lei.py
index dc16718..06b5c52 100644
--- a/stdnum/lei.py
+++ b/stdnum/lei.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """LEI (Legal Entity Identifier).
 
diff --git a/stdnum/li/__init__.py b/stdnum/li/__init__.py
index 48d7291..86f558e 100644
--- a/stdnum/li/__init__.py
+++ b/stdnum/li/__init__.py
@@ -14,8 +14,6 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Liechtenstein numbers."""
diff --git a/stdnum/li/peid.py b/stdnum/li/peid.py
index aad888b..6be8ac3 100644
--- a/stdnum/li/peid.py
+++ b/stdnum/li/peid.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """PEID (Liechtenstein tax code for individuals and entities).
 
diff --git a/stdnum/lt/__init__.py b/stdnum/lt/__init__.py
index f6ab3a6..7222803 100644
--- a/stdnum/lt/__init__.py
+++ b/stdnum/lt/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Lithuanian numbers."""
 
diff --git a/stdnum/lt/asmens.py b/stdnum/lt/asmens.py
index 2563617..25a7d7f 100644
--- a/stdnum/lt/asmens.py
+++ b/stdnum/lt/asmens.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Asmens kodas (Lithuanian, personal numbers).
 
diff --git a/stdnum/lt/pvm.py b/stdnum/lt/pvm.py
index 699dd57..8b01cb9 100644
--- a/stdnum/lt/pvm.py
+++ b/stdnum/lt/pvm.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """PVM (Pridėtinės vertės mokestis mokėtojo kodas, Lithuanian VAT number).
 
diff --git a/stdnum/lu/__init__.py b/stdnum/lu/__init__.py
index 35376af..32aebea 100644
--- a/stdnum/lu/__init__.py
+++ b/stdnum/lu/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Luxembourgian numbers."""
 
diff --git a/stdnum/lu/tva.py b/stdnum/lu/tva.py
index 89f4b8a..558ccde 100644
--- a/stdnum/lu/tva.py
+++ b/stdnum/lu/tva.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """TVA (taxe sur la valeur ajoutée, Luxembourgian VAT number).
 
diff --git a/stdnum/luhn.py b/stdnum/luhn.py
index 7dcbf89..fe77f0a 100644
--- a/stdnum/luhn.py
+++ b/stdnum/luhn.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """The Luhn and Luhn mod N algorithms.
 
diff --git a/stdnum/lv/__init__.py b/stdnum/lv/__init__.py
index 3cfc1a1..a4ab313 100644
--- a/stdnum/lv/__init__.py
+++ b/stdnum/lv/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Latvian numbers."""
 
diff --git a/stdnum/lv/pvn.py b/stdnum/lv/pvn.py
index 511d7fc..d73ee4c 100644
--- a/stdnum/lv/pvn.py
+++ b/stdnum/lv/pvn.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """PVN (Pievienotās vērtības nodokļa, Latvian VAT number).
 
diff --git a/stdnum/ma/__init__.py b/stdnum/ma/__init__.py
index d7e0269..b895e1f 100644
--- a/stdnum/ma/__init__.py
+++ b/stdnum/ma/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Moroccan numbers."""
 
diff --git a/stdnum/ma/ice.py b/stdnum/ma/ice.py
index 73267c5..d1922bb 100644
--- a/stdnum/ma/ice.py
+++ b/stdnum/ma/ice.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ICE (Identifiant Commun de l’Entreprise, التعريف الموحد للمقاولة, Morocco 
tax number).
 
diff --git a/stdnum/mac.py b/stdnum/mac.py
index 93a3f81..42b8209 100644
--- a/stdnum/mac.py
+++ b/stdnum/mac.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """MAC address (Media Access Control address).
 
diff --git a/stdnum/mc/__init__.py b/stdnum/mc/__init__.py
index dc9717b..478d977 100644
--- a/stdnum/mc/__init__.py
+++ b/stdnum/mc/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Monacan numbers."""
 
diff --git a/stdnum/mc/tva.py b/stdnum/mc/tva.py
index c709b5d..10c6172 100644
--- a/stdnum/mc/tva.py
+++ b/stdnum/mc/tva.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """n° TVA (taxe sur la valeur ajoutée, Monacan VAT number).
 
diff --git a/stdnum/md/__init__.py b/stdnum/md/__init__.py
index f922065..1a3e173 100644
--- a/stdnum/md/__init__.py
+++ b/stdnum/md/__init__.py
@@ -14,8 +14,6 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Moldavian numbers."""
diff --git a/stdnum/md/idno.py b/stdnum/md/idno.py
index 44172d4..c36f746 100644
--- a/stdnum/md/idno.py
+++ b/stdnum/md/idno.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """IDNO (Moldavian company identification number).
 
diff --git a/stdnum/me/__init__.py b/stdnum/me/__init__.py
index 5142dfe..512b9a0 100644
--- a/stdnum/me/__init__.py
+++ b/stdnum/me/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Montenegro numbers."""
 
diff --git a/stdnum/me/iban.py b/stdnum/me/iban.py
index 17bf8a2..8403232 100644
--- a/stdnum/me/iban.py
+++ b/stdnum/me/iban.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Montenegro IBAN (International Bank Account Number).
 
diff --git a/stdnum/me/pib.py b/stdnum/me/pib.py
index 48d2361..ff5913c 100644
--- a/stdnum/me/pib.py
+++ b/stdnum/me/pib.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """PIB (Poreski Identifikacioni Broj, Montenegro tax number).
 
diff --git a/stdnum/meid.py b/stdnum/meid.py
index 555898d..e7b3fed 100644
--- a/stdnum/meid.py
+++ b/stdnum/meid.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """MEID (Mobile Equipment Identifier).
 
diff --git a/stdnum/mk/__init__.py b/stdnum/mk/__init__.py
index 460926e..fab0071 100644
--- a/stdnum/mk/__init__.py
+++ b/stdnum/mk/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of North Macedonia numbers."""
 
diff --git a/stdnum/mk/edb.py b/stdnum/mk/edb.py
index 7ff7710..c3a482a 100644
--- a/stdnum/mk/edb.py
+++ b/stdnum/mk/edb.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ЕДБ (Едниствен Даночен Број, North Macedonia tax number).
 
diff --git a/stdnum/mt/__init__.py b/stdnum/mt/__init__.py
index e1d2ef7..5692ac2 100644
--- a/stdnum/mt/__init__.py
+++ b/stdnum/mt/__init__.py
@@ -14,8 +14,6 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Maltese numbers."""
diff --git a/stdnum/mt/vat.py b/stdnum/mt/vat.py
index acfb85a..f18604c 100644
--- a/stdnum/mt/vat.py
+++ b/stdnum/mt/vat.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """VAT (Maltese VAT number).
 
diff --git a/stdnum/mu/__init__.py b/stdnum/mu/__init__.py
index 1fff166..efe7381 100644
--- a/stdnum/mu/__init__.py
+++ b/stdnum/mu/__init__.py
@@ -14,8 +14,6 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Mauritian numbers."""
diff --git a/stdnum/mu/nid.py b/stdnum/mu/nid.py
index e6a93c8..fe645b6 100644
--- a/stdnum/mu/nid.py
+++ b/stdnum/mu/nid.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ID number (Mauritian national identifier).
 
diff --git a/stdnum/mx/__init__.py b/stdnum/mx/__init__.py
index 44c78e7..3f5d29e 100644
--- a/stdnum/mx/__init__.py
+++ b/stdnum/mx/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Mexican numbers."""
 
diff --git a/stdnum/mx/curp.py b/stdnum/mx/curp.py
index de5ca87..e86b099 100644
--- a/stdnum/mx/curp.py
+++ b/stdnum/mx/curp.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CURP (Clave Única de Registro de Población, Mexican personal ID).
 
diff --git a/stdnum/mx/rfc.py b/stdnum/mx/rfc.py
index d2494b3..ebdaa05 100644
--- a/stdnum/mx/rfc.py
+++ b/stdnum/mx/rfc.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """RFC (Registro Federal de Contribuyentes, Mexican tax number).
 
diff --git a/stdnum/my/__init__.py b/stdnum/my/__init__.py
index e20908e..059c8c7 100644
--- a/stdnum/my/__init__.py
+++ b/stdnum/my/__init__.py
@@ -14,8 +14,6 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Malaysian numbers."""
diff --git a/stdnum/my/nric.py b/stdnum/my/nric.py
index 7c85ad4..feee2e0 100644
--- a/stdnum/my/nric.py
+++ b/stdnum/my/nric.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NRIC No. (Malaysian National Registration Identity Card Number).
 
diff --git a/stdnum/mz/__init__.py b/stdnum/mz/__init__.py
index 978b3cb..8765976 100644
--- a/stdnum/mz/__init__.py
+++ b/stdnum/mz/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Mozambique numbers."""
 
diff --git a/stdnum/mz/nuit.py b/stdnum/mz/nuit.py
index 99644a4..a6d6156 100644
--- a/stdnum/mz/nuit.py
+++ b/stdnum/mz/nuit.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NUIT (Número Único de Identificação Tributaria, Mozambique tax number).
 
diff --git a/stdnum/nl/__init__.py b/stdnum/nl/__init__.py
index 0523a37..860477a 100644
--- a/stdnum/nl/__init__.py
+++ b/stdnum/nl/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Dutch numbers."""
 
diff --git a/stdnum/nl/brin.py b/stdnum/nl/brin.py
index c3dcc82..06152cb 100644
--- a/stdnum/nl/brin.py
+++ b/stdnum/nl/brin.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """BRIN number (the Dutch school identification number).
 
diff --git a/stdnum/nl/bsn.py b/stdnum/nl/bsn.py
index cb8dca5..af2907a 100644
--- a/stdnum/nl/bsn.py
+++ b/stdnum/nl/bsn.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """BSN (Burgerservicenummer, the Dutch citizen identification number).
 
diff --git a/stdnum/nl/btw.py b/stdnum/nl/btw.py
index 08a97b0..6387f5d 100644
--- a/stdnum/nl/btw.py
+++ b/stdnum/nl/btw.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Btw-identificatienummer (Omzetbelastingnummer, the Dutch VAT number).
 
diff --git a/stdnum/nl/identiteitskaartnummer.py 
b/stdnum/nl/identiteitskaartnummer.py
index 2431b5f..4405058 100644
--- a/stdnum/nl/identiteitskaartnummer.py
+++ b/stdnum/nl/identiteitskaartnummer.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Identiteitskaartnummer, Paspoortnummer (the Dutch passport number).
 
diff --git a/stdnum/nl/onderwijsnummer.py b/stdnum/nl/onderwijsnummer.py
index 0fa6a30..7377467 100644
--- a/stdnum/nl/onderwijsnummer.py
+++ b/stdnum/nl/onderwijsnummer.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Onderwijsnummer (the Dutch student identification number).
 
diff --git a/stdnum/nl/postcode.py b/stdnum/nl/postcode.py
index 2f3ba97..96c870d 100644
--- a/stdnum/nl/postcode.py
+++ b/stdnum/nl/postcode.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Postcode (the Dutch postal code).
 
diff --git a/stdnum/no/__init__.py b/stdnum/no/__init__.py
index 9dfe517..ca24ce9 100644
--- a/stdnum/no/__init__.py
+++ b/stdnum/no/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Norwegian numbers."""
 
diff --git a/stdnum/no/fodselsnummer.py b/stdnum/no/fodselsnummer.py
index f070685..2c10cac 100644
--- a/stdnum/no/fodselsnummer.py
+++ b/stdnum/no/fodselsnummer.py
@@ -16,9 +16,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Fødselsnummer (Norwegian birth number, the national identity number).
 
diff --git a/stdnum/no/iban.py b/stdnum/no/iban.py
index 1987277..5d1afde 100644
--- a/stdnum/no/iban.py
+++ b/stdnum/no/iban.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Norwegian IBAN (International Bank Account Number).
 
diff --git a/stdnum/no/kontonr.py b/stdnum/no/kontonr.py
index aa233c4..ecd114f 100644
--- a/stdnum/no/kontonr.py
+++ b/stdnum/no/kontonr.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Konto nr. (Norwegian bank account number)
 
diff --git a/stdnum/no/mva.py b/stdnum/no/mva.py
index 4409a54..982fa1f 100644
--- a/stdnum/no/mva.py
+++ b/stdnum/no/mva.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """MVA (Merverdiavgift, Norwegian VAT number).
 
diff --git a/stdnum/no/orgnr.py b/stdnum/no/orgnr.py
index 884fc9b..c3bc668 100644
--- a/stdnum/no/orgnr.py
+++ b/stdnum/no/orgnr.py
@@ -16,9 +16,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Orgnr (Organisasjonsnummer, Norwegian organisation number).
 
diff --git a/stdnum/numdb.py b/stdnum/numdb.py
index 649f9bc..9c2e029 100644
--- a/stdnum/numdb.py
+++ b/stdnum/numdb.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Query structured number format files with number properties.
 
diff --git a/stdnum/nz/__init__.py b/stdnum/nz/__init__.py
index 916154b..d072739 100644
--- a/stdnum/nz/__init__.py
+++ b/stdnum/nz/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of New Zealand numbers."""
 
diff --git a/stdnum/nz/bankaccount.py b/stdnum/nz/bankaccount.py
index 837f530..f910977 100644
--- a/stdnum/nz/bankaccount.py
+++ b/stdnum/nz/bankaccount.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """New Zealand bank account number
 
diff --git a/stdnum/nz/ird.py b/stdnum/nz/ird.py
index c0e8868..250689f 100644
--- a/stdnum/nz/ird.py
+++ b/stdnum/nz/ird.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """IRD number (New Zealand Inland Revenue Department (Te Tari Tāke) number).
 
diff --git a/stdnum/pe/__init__.py b/stdnum/pe/__init__.py
index 34e38ec..d058573 100644
--- a/stdnum/pe/__init__.py
+++ b/stdnum/pe/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Peruvian numbers."""
 
diff --git a/stdnum/pe/cui.py b/stdnum/pe/cui.py
index 0224fbc..8ae57f2 100644
--- a/stdnum/pe/cui.py
+++ b/stdnum/pe/cui.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CUI (Cédula Única de Identidad, Peruvian identity number).
 
diff --git a/stdnum/pe/ruc.py b/stdnum/pe/ruc.py
index f5a3f1c..3877299 100644
--- a/stdnum/pe/ruc.py
+++ b/stdnum/pe/ruc.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """RUC (Registro Único de Contribuyentes, Peruvian company tax number).
 
diff --git a/stdnum/pk/__init__.py b/stdnum/pk/__init__.py
index 163ca84..be33ad0 100644
--- a/stdnum/pk/__init__.py
+++ b/stdnum/pk/__init__.py
@@ -14,8 +14,6 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Pakistani numbers."""
diff --git a/stdnum/pk/cnic.py b/stdnum/pk/cnic.py
index 47ce8bc..8bab30c 100644
--- a/stdnum/pk/cnic.py
+++ b/stdnum/pk/cnic.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CNIC number (Pakistani Computerised National Identity Card number).
 
diff --git a/stdnum/pl/__init__.py b/stdnum/pl/__init__.py
index 87f65c6..c004744 100644
--- a/stdnum/pl/__init__.py
+++ b/stdnum/pl/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Polish numbers."""
 
diff --git a/stdnum/pl/nip.py b/stdnum/pl/nip.py
index 379592f..bfc7506 100644
--- a/stdnum/pl/nip.py
+++ b/stdnum/pl/nip.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NIP (Numer Identyfikacji Podatkowej, Polish VAT number).
 
diff --git a/stdnum/pl/pesel.py b/stdnum/pl/pesel.py
index fadedb9..38ff544 100644
--- a/stdnum/pl/pesel.py
+++ b/stdnum/pl/pesel.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """PESEL (Polish national identification number).
 
diff --git a/stdnum/pl/regon.py b/stdnum/pl/regon.py
index aac7ed5..927ea32 100644
--- a/stdnum/pl/regon.py
+++ b/stdnum/pl/regon.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """REGON (Rejestr Gospodarki Narodowej, Polish register of economic units).
 
diff --git a/stdnum/pt/__init__.py b/stdnum/pt/__init__.py
index bb7bcd0..98c3e54 100644
--- a/stdnum/pt/__init__.py
+++ b/stdnum/pt/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Portuguese numbers."""
 
diff --git a/stdnum/pt/cc.py b/stdnum/pt/cc.py
index 855d1f5..f98f40e 100644
--- a/stdnum/pt/cc.py
+++ b/stdnum/pt/cc.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CC (Número de Cartão de Cidadão, Portuguese Identity number).
 
diff --git a/stdnum/pt/nif.py b/stdnum/pt/nif.py
index 3a58f97..463597e 100644
--- a/stdnum/pt/nif.py
+++ b/stdnum/pt/nif.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NIF (Número de identificação fiscal, Portuguese VAT number).
 
diff --git a/stdnum/py/__init__.py b/stdnum/py/__init__.py
index 85ad10d..137f3b2 100644
--- a/stdnum/py/__init__.py
+++ b/stdnum/py/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Paraguayan numbers."""
 
diff --git a/stdnum/py/ruc.py b/stdnum/py/ruc.py
index b280029..ee0bad8 100644
--- a/stdnum/py/ruc.py
+++ b/stdnum/py/ruc.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """RUC number (Registro Único de Contribuyentes, Paraguay tax number).
 
diff --git a/stdnum/ro/__init__.py b/stdnum/ro/__init__.py
index 97b3d3e..2ef8c04 100644
--- a/stdnum/ro/__init__.py
+++ b/stdnum/ro/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Romanian numbers."""
 
diff --git a/stdnum/ro/cf.py b/stdnum/ro/cf.py
index 058287d..918df30 100644
--- a/stdnum/ro/cf.py
+++ b/stdnum/ro/cf.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CF (Cod de înregistrare în scopuri de TVA, Romanian VAT number).
 
diff --git a/stdnum/ro/cnp.py b/stdnum/ro/cnp.py
index 55a4745..80edcf9 100644
--- a/stdnum/ro/cnp.py
+++ b/stdnum/ro/cnp.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CNP (Cod Numeric Personal, Romanian Numerical Personal Code).
 
diff --git a/stdnum/ro/cui.py b/stdnum/ro/cui.py
index 3c06ba0..af79f48 100644
--- a/stdnum/ro/cui.py
+++ b/stdnum/ro/cui.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """CUI or CIF (Codul Unic de Înregistrare, Romanian company identifier).
 
diff --git a/stdnum/ro/onrc.py b/stdnum/ro/onrc.py
index 8b2eb5d..5467b03 100644
--- a/stdnum/ro/onrc.py
+++ b/stdnum/ro/onrc.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ONRC (Ordine din Registrul Comerţului, Romanian Trade Register identifier).
 
diff --git a/stdnum/rs/__init__.py b/stdnum/rs/__init__.py
index a5f3c78..8f332dd 100644
--- a/stdnum/rs/__init__.py
+++ b/stdnum/rs/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Serbian numbers."""
 
diff --git a/stdnum/rs/pib.py b/stdnum/rs/pib.py
index 65a9a74..1e59f13 100644
--- a/stdnum/rs/pib.py
+++ b/stdnum/rs/pib.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """PIB (Poreski Identifikacioni Broj, Serbian tax identification number).
 
diff --git a/stdnum/ru/__init__.py b/stdnum/ru/__init__.py
index 3a2cfa2..8725a85 100644
--- a/stdnum/ru/__init__.py
+++ b/stdnum/ru/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Russian numbers."""
 
diff --git a/stdnum/ru/inn.py b/stdnum/ru/inn.py
index 237a6ca..ff23430 100644
--- a/stdnum/ru/inn.py
+++ b/stdnum/ru/inn.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ИНН (Идентификационный номер налогоплательщика, Russian tax identifier).
 
diff --git a/stdnum/ru/ogrn.py b/stdnum/ru/ogrn.py
index 9ac4b6c..7c2bde7 100644
--- a/stdnum/ru/ogrn.py
+++ b/stdnum/ru/ogrn.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ОГРН, OGRN, PSRN, ОГРНИП, OGRNIP (Russian Primary State Registration 
Number).
 
diff --git a/stdnum/se/__init__.py b/stdnum/se/__init__.py
index f5f004b..d2130ac 100644
--- a/stdnum/se/__init__.py
+++ b/stdnum/se/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Swedish numbers."""
 
diff --git a/stdnum/se/orgnr.py b/stdnum/se/orgnr.py
index 11628ee..82fa199 100644
--- a/stdnum/se/orgnr.py
+++ b/stdnum/se/orgnr.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Orgnr (Organisationsnummer, Swedish company number).
 
diff --git a/stdnum/se/personnummer.py b/stdnum/se/personnummer.py
index 4dff3b1..277c7f5 100644
--- a/stdnum/se/personnummer.py
+++ b/stdnum/se/personnummer.py
@@ -16,9 +16,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Personnummer (Swedish personal identity number).
 
diff --git a/stdnum/se/postnummer.py b/stdnum/se/postnummer.py
index 27ba90f..2b9a0d0 100644
--- a/stdnum/se/postnummer.py
+++ b/stdnum/se/postnummer.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Postcode (the Swedish postal code).
 
diff --git a/stdnum/se/vat.py b/stdnum/se/vat.py
index 4c2e7df..2cf4a72 100644
--- a/stdnum/se/vat.py
+++ b/stdnum/se/vat.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """VAT (Moms, Mervärdesskatt, Swedish VAT number).
 
diff --git a/stdnum/sg/__init__.py b/stdnum/sg/__init__.py
index bf29be6..e0b4a82 100644
--- a/stdnum/sg/__init__.py
+++ b/stdnum/sg/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Singapore numbers."""
 
diff --git a/stdnum/sg/uen.py b/stdnum/sg/uen.py
index 602daee..d8f4c74 100644
--- a/stdnum/sg/uen.py
+++ b/stdnum/sg/uen.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """UEN (Singapore's Unique Entity Number).
 
diff --git a/stdnum/si/__init__.py b/stdnum/si/__init__.py
index fe2cc47..4993bfd 100644
--- a/stdnum/si/__init__.py
+++ b/stdnum/si/__init__.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Slovenian numbers."""
 
diff --git a/stdnum/si/ddv.py b/stdnum/si/ddv.py
index 329624b..e32aea8 100644
--- a/stdnum/si/ddv.py
+++ b/stdnum/si/ddv.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ID za DDV (Davčna številka, Slovenian VAT number).
 
diff --git a/stdnum/si/emso.py b/stdnum/si/emso.py
index 6a47789..5c2cf6b 100644
--- a/stdnum/si/emso.py
+++ b/stdnum/si/emso.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Enotna matična številka občana (Unique Master Citizen Number).
 
diff --git a/stdnum/si/maticna.py b/stdnum/si/maticna.py
index a7b5ac9..28e472b 100644
--- a/stdnum/si/maticna.py
+++ b/stdnum/si/maticna.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Matična številka poslovnega registra (Corporate Registration Number)
 
diff --git a/stdnum/sk/__init__.py b/stdnum/sk/__init__.py
index 27f389b..eb7e377 100644
--- a/stdnum/sk/__init__.py
+++ b/stdnum/sk/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Slovak numbers."""
 
diff --git a/stdnum/sk/dph.py b/stdnum/sk/dph.py
index 4313e16..1bda988 100644
--- a/stdnum/sk/dph.py
+++ b/stdnum/sk/dph.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """IČ DPH (IČ pre daň z pridanej hodnoty, Slovak VAT number).
 
diff --git a/stdnum/sk/rc.py b/stdnum/sk/rc.py
index 9ef2208..b03d762 100644
--- a/stdnum/sk/rc.py
+++ b/stdnum/sk/rc.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """RČ (Rodné číslo, the Slovak birth number).
 
diff --git a/stdnum/sm/__init__.py b/stdnum/sm/__init__.py
index acad26a..df2f5fe 100644
--- a/stdnum/sm/__init__.py
+++ b/stdnum/sm/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of San Marino numbers."""
 
diff --git a/stdnum/sm/coe.py b/stdnum/sm/coe.py
index d0edb06..b80e7ca 100644
--- a/stdnum/sm/coe.py
+++ b/stdnum/sm/coe.py
@@ -16,9 +16,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """COE (Codice operatore economico, San Marino national tax number).
 
diff --git a/stdnum/sn/__init__.py b/stdnum/sn/__init__.py
index 64d908b..ef13f74 100644
--- a/stdnum/sn/__init__.py
+++ b/stdnum/sn/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Senegal numbers."""
 
diff --git a/stdnum/sn/ninea.py b/stdnum/sn/ninea.py
index 7a850cc..99b92e8 100644
--- a/stdnum/sn/ninea.py
+++ b/stdnum/sn/ninea.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NINEA (Numéro d'Identification Nationale des Entreprises et Associations, 
Senegal tax number).
 
diff --git a/stdnum/sv/__init__.py b/stdnum/sv/__init__.py
index 074a6e9..b2c044c 100644
--- a/stdnum/sv/__init__.py
+++ b/stdnum/sv/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of El Salvador numbers."""
 
diff --git a/stdnum/sv/nit.py b/stdnum/sv/nit.py
index 38c2522..d27d2f4 100644
--- a/stdnum/sv/nit.py
+++ b/stdnum/sv/nit.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """NIT (Número de Identificación Tributaria, El Salvador tax number).
 
diff --git a/stdnum/th/__init__.py b/stdnum/th/__init__.py
index 37e974f..20c6498 100644
--- a/stdnum/th/__init__.py
+++ b/stdnum/th/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Thai numbers."""
 
diff --git a/stdnum/th/moa.py b/stdnum/th/moa.py
index 41cdaae..9f53d54 100644
--- a/stdnum/th/moa.py
+++ b/stdnum/th/moa.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """MOA (Thailand Memorandum of Association Number).
 
diff --git a/stdnum/th/pin.py b/stdnum/th/pin.py
index edc7a04..3364aed 100644
--- a/stdnum/th/pin.py
+++ b/stdnum/th/pin.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """PIN (Thailand Personal Identification Number).
 
diff --git a/stdnum/th/tin.py b/stdnum/th/tin.py
index 6a4d365..8da132a 100644
--- a/stdnum/th/tin.py
+++ b/stdnum/th/tin.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """TIN (Thailand Taxpayer Identification Number).
 
diff --git a/stdnum/tn/__init__.py b/stdnum/tn/__init__.py
index 3ed9e5a..a8c9ea0 100644
--- a/stdnum/tn/__init__.py
+++ b/stdnum/tn/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Tunisian numbers."""
 
diff --git a/stdnum/tn/mf.py b/stdnum/tn/mf.py
index 609708d..7f6c98b 100644
--- a/stdnum/tn/mf.py
+++ b/stdnum/tn/mf.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """MF (Matricule Fiscal, Tunisia tax number).
 
diff --git a/stdnum/tr/__init__.py b/stdnum/tr/__init__.py
index b7e1b22..98e1c47 100644
--- a/stdnum/tr/__init__.py
+++ b/stdnum/tr/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Turkish numbers."""
 
diff --git a/stdnum/tr/tckimlik.py b/stdnum/tr/tckimlik.py
index bca5a80..fcd9efd 100644
--- a/stdnum/tr/tckimlik.py
+++ b/stdnum/tr/tckimlik.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """T.C. Kimlik No. (Turkish personal identification number)
 
diff --git a/stdnum/tr/vkn.py b/stdnum/tr/vkn.py
index 406620a..6d1b83d 100644
--- a/stdnum/tr/vkn.py
+++ b/stdnum/tr/vkn.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """VKN (Vergi Kimlik Numarası, Turkish tax identification number).
 
diff --git a/stdnum/tw/__init__.py b/stdnum/tw/__init__.py
index 1adbfd3..d5ac0fc 100644
--- a/stdnum/tw/__init__.py
+++ b/stdnum/tw/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Taiwanese numbers."""
 
diff --git a/stdnum/tw/ubn.py b/stdnum/tw/ubn.py
index 2e88a8d..cf518cc 100644
--- a/stdnum/tw/ubn.py
+++ b/stdnum/tw/ubn.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """UBN (Unified Business Number, 統一編號, Taiwanese tax number).
 
diff --git a/stdnum/ua/__init__.py b/stdnum/ua/__init__.py
index 1838c52..dfb83b6 100644
--- a/stdnum/ua/__init__.py
+++ b/stdnum/ua/__init__.py
@@ -14,8 +14,6 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Ukrainian numbers."""
diff --git a/stdnum/ua/edrpou.py b/stdnum/ua/edrpou.py
index 9af165e..9420815 100644
--- a/stdnum/ua/edrpou.py
+++ b/stdnum/ua/edrpou.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ЄДРПОУ, EDRPOU (Identifier for enterprises and organizations in Ukraine).
 
diff --git a/stdnum/ua/rntrc.py b/stdnum/ua/rntrc.py
index dcbba5d..8a1d178 100644
--- a/stdnum/ua/rntrc.py
+++ b/stdnum/ua/rntrc.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """РНОКПП, RNTRC (Individual taxpayer registration number in Ukraine).
 
diff --git a/stdnum/us/__init__.py b/stdnum/us/__init__.py
index 5d76734..35db7aa 100644
--- a/stdnum/us/__init__.py
+++ b/stdnum/us/__init__.py
@@ -14,8 +14,6 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of United States numbers."""
diff --git a/stdnum/us/atin.py b/stdnum/us/atin.py
index 195ab06..f622107 100644
--- a/stdnum/us/atin.py
+++ b/stdnum/us/atin.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ATIN (U.S. Adoption Taxpayer Identification Number).
 
diff --git a/stdnum/us/ein.py b/stdnum/us/ein.py
index 9fee450..58dfc96 100644
--- a/stdnum/us/ein.py
+++ b/stdnum/us/ein.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """EIN (U.S. Employer Identification Number).
 
diff --git a/stdnum/us/itin.py b/stdnum/us/itin.py
index b981075..4173def 100644
--- a/stdnum/us/itin.py
+++ b/stdnum/us/itin.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ITIN (U.S. Individual Taxpayer Identification Number).
 
diff --git a/stdnum/us/ptin.py b/stdnum/us/ptin.py
index 66d31f8..046bbd2 100644
--- a/stdnum/us/ptin.py
+++ b/stdnum/us/ptin.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """PTIN (U.S. Preparer Tax Identification Number).
 
diff --git a/stdnum/us/rtn.py b/stdnum/us/rtn.py
index f3cadd0..1b6c7a3 100644
--- a/stdnum/us/rtn.py
+++ b/stdnum/us/rtn.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """RTN (Routing transport number).
 
diff --git a/stdnum/us/ssn.py b/stdnum/us/ssn.py
index 7deb0b5..79b24e8 100644
--- a/stdnum/us/ssn.py
+++ b/stdnum/us/ssn.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """SSN (U.S. Social Security Number).
 
diff --git a/stdnum/us/tin.py b/stdnum/us/tin.py
index d0fcc2b..d66d680 100644
--- a/stdnum/us/tin.py
+++ b/stdnum/us/tin.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """TIN (U.S. Taxpayer Identification Number).
 
diff --git a/stdnum/util.py b/stdnum/util.py
index 0848aa8..bd5d105 100644
--- a/stdnum/util.py
+++ b/stdnum/util.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Common utility functions for other stdnum modules.
 
diff --git a/stdnum/uy/__init__.py b/stdnum/uy/__init__.py
index bbc20d2..ae368a2 100644
--- a/stdnum/uy/__init__.py
+++ b/stdnum/uy/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Uruguayan numbers."""
 
diff --git a/stdnum/uy/rut.py b/stdnum/uy/rut.py
index 1320c18..8cec1fd 100644
--- a/stdnum/uy/rut.py
+++ b/stdnum/uy/rut.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """RUT (Registro Único Tributario, Uruguay tax number).
 
diff --git a/stdnum/vatin.py b/stdnum/vatin.py
index 37b2d3a..3e7e2f5 100644
--- a/stdnum/vatin.py
+++ b/stdnum/vatin.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """VATIN (International value added tax identification number)
 
diff --git a/stdnum/ve/__init__.py b/stdnum/ve/__init__.py
index 4bbca26..4fb567f 100644
--- a/stdnum/ve/__init__.py
+++ b/stdnum/ve/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Venezuelan numbers."""
 
diff --git a/stdnum/ve/rif.py b/stdnum/ve/rif.py
index cd4990a..dda72b7 100644
--- a/stdnum/ve/rif.py
+++ b/stdnum/ve/rif.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """RIF (Registro de Identificación Fiscal, Venezuelan VAT number).
 
diff --git a/stdnum/verhoeff.py b/stdnum/verhoeff.py
index 9533062..ee1c345 100644
--- a/stdnum/verhoeff.py
+++ b/stdnum/verhoeff.py
@@ -13,9 +13,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """The Verhoeff algorithm.
 
diff --git a/stdnum/vn/__init__.py b/stdnum/vn/__init__.py
index 3374f73..a900bd3 100644
--- a/stdnum/vn/__init__.py
+++ b/stdnum/vn/__init__.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of Vietnam numbers."""
 
diff --git a/stdnum/vn/mst.py b/stdnum/vn/mst.py
index 63c27a9..3f18645 100644
--- a/stdnum/vn/mst.py
+++ b/stdnum/vn/mst.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """MST (Mã số thuế, Vietnam tax number).
 
diff --git a/stdnum/za/__init__.py b/stdnum/za/__init__.py
index 2424e9c..9b839ba 100644
--- a/stdnum/za/__init__.py
+++ b/stdnum/za/__init__.py
@@ -14,8 +14,6 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """Collection of South Africa numbers."""
diff --git a/stdnum/za/idnr.py b/stdnum/za/idnr.py
index f323499..6708fe2 100644
--- a/stdnum/za/idnr.py
+++ b/stdnum/za/idnr.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """ID number (South African Identity Document number).
 
diff --git a/stdnum/za/tin.py b/stdnum/za/tin.py
index 62960f9..299dc52 100644
--- a/stdnum/za/tin.py
+++ b/stdnum/za/tin.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """TIN (South African Tax Identification Number).
 
diff --git a/tests/test_ad_nrt.doctest b/tests/test_ad_nrt.doctest
index 74d5f8d..254d1ef 100644
--- a/tests/test_ad_nrt.doctest
+++ b/tests/test_ad_nrt.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ad.nrt module. It
diff --git a/tests/test_al_nipt.doctest b/tests/test_al_nipt.doctest
index 19cad11..dc160b9 100644
--- a/tests/test_al_nipt.doctest
+++ b/tests/test_al_nipt.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.al.nipt module.
diff --git a/tests/test_ar_cbu.doctest b/tests/test_ar_cbu.doctest
index ef3aa9e..6025763 100644
--- a/tests/test_ar_cbu.doctest
+++ b/tests/test_ar_cbu.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ar.cbu module. It
diff --git a/tests/test_ar_cuit.doctest b/tests/test_ar_cuit.doctest
index 511634e..e236bf3 100644
--- a/tests/test_ar_cuit.doctest
+++ b/tests/test_ar_cuit.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ac.cuit module. It
diff --git a/tests/test_at_tin.doctest b/tests/test_at_tin.doctest
index 3a2da53..e1a7513 100644
--- a/tests/test_at_tin.doctest
+++ b/tests/test_at_tin.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.at.tin module. It
diff --git a/tests/test_au_abn.doctest b/tests/test_au_abn.doctest
index 41ae5ca..04e05c2 100644
--- a/tests/test_au_abn.doctest
+++ b/tests/test_au_abn.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.au.abn module. It
diff --git a/tests/test_au_acn.doctest b/tests/test_au_acn.doctest
index da7bd4a..4c2d78f 100644
--- a/tests/test_au_acn.doctest
+++ b/tests/test_au_acn.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.au.acn module. It
diff --git a/tests/test_au_tfn.doctest b/tests/test_au_tfn.doctest
index 1dddcae..9dc029f 100644
--- a/tests/test_au_tfn.doctest
+++ b/tests/test_au_tfn.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.au.tfn module. It
diff --git a/tests/test_az_voen.doctest b/tests/test_az_voen.doctest
index ef0a890..04ca23c 100644
--- a/tests/test_az_voen.doctest
+++ b/tests/test_az_voen.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.az.voen module. It
diff --git a/tests/test_be_bis.doctest b/tests/test_be_bis.doctest
index b52607c..d9f0a3e 100644
--- a/tests/test_be_bis.doctest
+++ b/tests/test_be_bis.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.be.bis module. It
diff --git a/tests/test_be_iban.doctest b/tests/test_be_iban.doctest
index 454dfd4..054c15e 100644
--- a/tests/test_be_iban.doctest
+++ b/tests/test_be_iban.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.be.iban module. It
diff --git a/tests/test_be_nn.doctest b/tests/test_be_nn.doctest
index ebab87a..1c03fa0 100644
--- a/tests/test_be_nn.doctest
+++ b/tests/test_be_nn.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.be.nn module. It
diff --git a/tests/test_be_ssn.doctest b/tests/test_be_ssn.doctest
index 88ff1e2..b0e67ad 100644
--- a/tests/test_be_ssn.doctest
+++ b/tests/test_be_ssn.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.be.ssn module. It
diff --git a/tests/test_be_vat.doctest b/tests/test_be_vat.doctest
index 8f01a3a..e9a36de 100644
--- a/tests/test_be_vat.doctest
+++ b/tests/test_be_vat.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.be.vat module. It
diff --git a/tests/test_bg_egn.doctest b/tests/test_bg_egn.doctest
index 2eccb60..c8e28a6 100644
--- a/tests/test_bg_egn.doctest
+++ b/tests/test_bg_egn.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.bg.egn module. It
diff --git a/tests/test_bg_vat.doctest b/tests/test_bg_vat.doctest
index aed256b..b506cd4 100644
--- a/tests/test_bg_vat.doctest
+++ b/tests/test_bg_vat.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.bg.vat module. It
diff --git a/tests/test_bic.doctest b/tests/test_bic.doctest
index 90b63c6..a3eaee7 100644
--- a/tests/test_bic.doctest
+++ b/tests/test_bic.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.bic module. It
diff --git a/tests/test_bitcoin.doctest b/tests/test_bitcoin.doctest
index 85ad66d..022bd84 100644
--- a/tests/test_bitcoin.doctest
+++ b/tests/test_bitcoin.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.bitcoin module. It
diff --git a/tests/test_br_cnpj.doctest b/tests/test_br_cnpj.doctest
index 2a0d605..bb9ca1f 100644
--- a/tests/test_br_cnpj.doctest
+++ b/tests/test_br_cnpj.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.br.cnpj module. It
diff --git a/tests/test_by_unp.doctest b/tests/test_by_unp.doctest
index 428473b..0cf8436 100644
--- a/tests/test_by_unp.doctest
+++ b/tests/test_by_unp.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.by.unp. It
diff --git a/tests/test_by_unp.py b/tests/test_by_unp.py
index cefbdf2..1f91db1 100644
--- a/tests/test_by_unp.py
+++ b/tests/test_by_unp.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 # This is a separate test file because it should not be run regularly
 # because it could negatively impact the online service.
diff --git a/tests/test_ca_bn.doctest b/tests/test_ca_bn.doctest
index c28a627..c3b359f 100644
--- a/tests/test_ca_bn.doctest
+++ b/tests/test_ca_bn.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ca.bn module.
diff --git a/tests/test_casrn.doctest b/tests/test_casrn.doctest
index 3ba6906..c3e486e 100644
--- a/tests/test_casrn.doctest
+++ b/tests/test_casrn.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.casrn module. It
diff --git a/tests/test_cfi.doctest b/tests/test_cfi.doctest
index 3869835..951db38 100644
--- a/tests/test_cfi.doctest
+++ b/tests/test_cfi.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.cfi module. It
diff --git a/tests/test_ch_esr.doctest b/tests/test_ch_esr.doctest
index 5fa31da..31f2ff9 100644
--- a/tests/test_ch_esr.doctest
+++ b/tests/test_ch_esr.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ch.esr module.
diff --git a/tests/test_ch_ssn.doctest b/tests/test_ch_ssn.doctest
index 2a496ca..674217d 100644
--- a/tests/test_ch_ssn.doctest
+++ b/tests/test_ch_ssn.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ch.ssn module. It
diff --git a/tests/test_ch_uid.doctest b/tests/test_ch_uid.doctest
index 04cd2a9..be13b49 100644
--- a/tests/test_ch_uid.doctest
+++ b/tests/test_ch_uid.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ch.uid module.
diff --git a/tests/test_ch_uid.py b/tests/test_ch_uid.py
index ee9063d..541cc69 100644
--- a/tests/test_ch_uid.py
+++ b/tests/test_ch_uid.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 # This is a separate test file because it should not be run regularly
 # because it could negatively impact the VIES service.
diff --git a/tests/test_ch_vat.doctest b/tests/test_ch_vat.doctest
index c13f8df..4024f7c 100644
--- a/tests/test_ch_vat.doctest
+++ b/tests/test_ch_vat.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ch.vat module.
diff --git a/tests/test_cl_rut.doctest b/tests/test_cl_rut.doctest
index c0a96eb..8c6e69d 100644
--- a/tests/test_cl_rut.doctest
+++ b/tests/test_cl_rut.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.cl.rut module.
diff --git a/tests/test_cn_ric.doctest b/tests/test_cn_ric.doctest
index 40ce4cf..ddd8780 100644
--- a/tests/test_cn_ric.doctest
+++ b/tests/test_cn_ric.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.cn.ric. It
diff --git a/tests/test_cn_uscc.doctest b/tests/test_cn_uscc.doctest
index 9d34ebb..94a902f 100644
--- a/tests/test_cn_uscc.doctest
+++ b/tests/test_cn_uscc.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.cn.uscc module. It
diff --git a/tests/test_co_nit.doctest b/tests/test_co_nit.doctest
index 5999f9a..11d65cf 100644
--- a/tests/test_co_nit.doctest
+++ b/tests/test_co_nit.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.co.nit module.
diff --git a/tests/test_cr_cpf.doctest b/tests/test_cr_cpf.doctest
index ee4d730..8df5825 100644
--- a/tests/test_cr_cpf.doctest
+++ b/tests/test_cr_cpf.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.cr.cpf module. It
diff --git a/tests/test_cr_cpj.doctest b/tests/test_cr_cpj.doctest
index d77ff67..aa6d53b 100644
--- a/tests/test_cr_cpj.doctest
+++ b/tests/test_cr_cpj.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.cr.cpj module. It
diff --git a/tests/test_cr_cr.doctest b/tests/test_cr_cr.doctest
index 138f9b3..90a40b1 100644
--- a/tests/test_cr_cr.doctest
+++ b/tests/test_cr_cr.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.cr.cr module. It
diff --git a/tests/test_cusip.doctest b/tests/test_cusip.doctest
index 9f97046..545c631 100644
--- a/tests/test_cusip.doctest
+++ b/tests/test_cusip.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.cusip module. It
diff --git a/tests/test_cz_bankaccount.doctest 
b/tests/test_cz_bankaccount.doctest
index d140992..fdb539b 100644
--- a/tests/test_cz_bankaccount.doctest
+++ b/tests/test_cz_bankaccount.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.cz.bankaccount
diff --git a/tests/test_cz_rc.doctest b/tests/test_cz_rc.doctest
index 0a83eeb..1b54a5d 100644
--- a/tests/test_cz_rc.doctest
+++ b/tests/test_cz_rc.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.cz.rc
diff --git a/tests/test_damm.doctest b/tests/test_damm.doctest
index 13d8c23..1063368 100644
--- a/tests/test_damm.doctest
+++ b/tests/test_damm.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.damm module. It
diff --git a/tests/test_de_handelsregisternummer.doctest 
b/tests/test_de_handelsregisternummer.doctest
index dcabca9..0416757 100644
--- a/tests/test_de_handelsregisternummer.doctest
+++ b/tests/test_de_handelsregisternummer.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 >>> from stdnum.de import handelsregisternummer
diff --git a/tests/test_de_handelsregisternummer.py 
b/tests/test_de_handelsregisternummer.py
index c5354f8..0e5d50c 100644
--- a/tests/test_de_handelsregisternummer.py
+++ b/tests/test_de_handelsregisternummer.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 # This is a separate test file because it should not be run regularly
 # because it could negatively impact the online service.
diff --git a/tests/test_de_idnr.doctest b/tests/test_de_idnr.doctest
index 20dc19c..821ee1a 100644
--- a/tests/test_de_idnr.doctest
+++ b/tests/test_de_idnr.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.de.idnr module. It
diff --git a/tests/test_de_leitweg.doctest b/tests/test_de_leitweg.doctest
index 627ea62..de0fd05 100644
--- a/tests/test_de_leitweg.doctest
+++ b/tests/test_de_leitweg.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.de.leitweg module. It
diff --git a/tests/test_de_stnr.doctest b/tests/test_de_stnr.doctest
index cf41cdd..663d819 100644
--- a/tests/test_de_stnr.doctest
+++ b/tests/test_de_stnr.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.de.stnr module. It
diff --git a/tests/test_de_wkn.doctest b/tests/test_de_wkn.doctest
index db47c49..94251df 100644
--- a/tests/test_de_wkn.doctest
+++ b/tests/test_de_wkn.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.de.wkn module. It
diff --git a/tests/test_do_cedula.doctest b/tests/test_do_cedula.doctest
index 665a731..33a1aa3 100644
--- a/tests/test_do_cedula.doctest
+++ b/tests/test_do_cedula.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.do.cedula module. It
diff --git a/tests/test_do_cedula.py b/tests/test_do_cedula.py
index cfaee70..9a85c42 100644
--- a/tests/test_do_cedula.py
+++ b/tests/test_do_cedula.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 # This is a separate test file because it should not be run regularly
 # because it could negatively impact the online service.
diff --git a/tests/test_do_ncf.doctest b/tests/test_do_ncf.doctest
index d0a6475..21f6d0d 100644
--- a/tests/test_do_ncf.doctest
+++ b/tests/test_do_ncf.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.do.ncf module. It
diff --git a/tests/test_do_ncf.py b/tests/test_do_ncf.py
index 19548dd..857eaa5 100644
--- a/tests/test_do_ncf.py
+++ b/tests/test_do_ncf.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 # This is a separate test file because it should not be run regularly
 # because it could negatively impact the online service.
diff --git a/tests/test_do_rnc.doctest b/tests/test_do_rnc.doctest
index 80c3575..ca83913 100644
--- a/tests/test_do_rnc.doctest
+++ b/tests/test_do_rnc.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.do.rnc module. It
diff --git a/tests/test_do_rnc.py b/tests/test_do_rnc.py
index f8c9f4f..da91c7e 100644
--- a/tests/test_do_rnc.py
+++ b/tests/test_do_rnc.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 # This is a separate test file because it should not be run regularly
 # because it could negatively impact the online service.
diff --git a/tests/test_dz_nif.doctest b/tests/test_dz_nif.doctest
index aee1235..005ab5d 100644
--- a/tests/test_dz_nif.doctest
+++ b/tests/test_dz_nif.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.dz.nif module. It
diff --git a/tests/test_ean.doctest b/tests/test_ean.doctest
index d541184..bacaed8 100644
--- a/tests/test_ean.doctest
+++ b/tests/test_ean.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ean module. It
diff --git a/tests/test_ec_ci.doctest b/tests/test_ec_ci.doctest
index 08efb8b..fe7572f 100644
--- a/tests/test_ec_ci.doctest
+++ b/tests/test_ec_ci.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ec.ci. It tries to
diff --git a/tests/test_ec_ruc.doctest b/tests/test_ec_ruc.doctest
index b0047e8..47173f5 100644
--- a/tests/test_ec_ruc.doctest
+++ b/tests/test_ec_ruc.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ec.ruc. It tries to
diff --git a/tests/test_ee_ik.doctest b/tests/test_ee_ik.doctest
index b5e1453..28abf18 100644
--- a/tests/test_ee_ik.doctest
+++ b/tests/test_ee_ik.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 >>> from stdnum.ee import ik
diff --git a/tests/test_ee_registrikood.doctest 
b/tests/test_ee_registrikood.doctest
index 1ed4440..591e24c 100644
--- a/tests/test_ee_registrikood.doctest
+++ b/tests/test_ee_registrikood.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ee.registrikood. It
diff --git a/tests/test_eg_tn.doctest b/tests/test_eg_tn.doctest
index 9518924..8f66063 100644
--- a/tests/test_eg_tn.doctest
+++ b/tests/test_eg_tn.doctest
@@ -15,9 +15,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.eg.tn module. It
diff --git a/tests/test_es_cae.doctest b/tests/test_es_cae.doctest
index 1af6230..ae3df35 100644
--- a/tests/test_es_cae.doctest
+++ b/tests/test_es_cae.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.es.cae and related
diff --git a/tests/test_es_cups.doctest b/tests/test_es_cups.doctest
index 6c76a86..9ecfbfc 100644
--- a/tests/test_es_cups.doctest
+++ b/tests/test_es_cups.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.es.cups. It
diff --git a/tests/test_es_nif.doctest b/tests/test_es_nif.doctest
index 17286eb..d150237 100644
--- a/tests/test_es_nif.doctest
+++ b/tests/test_es_nif.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.es.nif and related
diff --git a/tests/test_es_referenciacatastral.doctest 
b/tests/test_es_referenciacatastral.doctest
index 73754cc..c27a254 100644
--- a/tests/test_es_referenciacatastral.doctest
+++ b/tests/test_es_referenciacatastral.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the
diff --git a/tests/test_eu_banknote.doctest b/tests/test_eu_banknote.doctest
index 891aa96..0e5585a 100644
--- a/tests/test_eu_banknote.doctest
+++ b/tests/test_eu_banknote.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.eu.banknote module.
diff --git a/tests/test_eu_ecnumber.doctest b/tests/test_eu_ecnumber.doctest
index c7e03b9..a389d9d 100644
--- a/tests/test_eu_ecnumber.doctest
+++ b/tests/test_eu_ecnumber.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.eu.ecnumber module. It
diff --git a/tests/test_eu_eic.doctest b/tests/test_eu_eic.doctest
index 92b7a32..ce5dbfd 100644
--- a/tests/test_eu_eic.doctest
+++ b/tests/test_eu_eic.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.eu.eic module. It
diff --git a/tests/test_eu_excise.doctest b/tests/test_eu_excise.doctest
index 99457d1..f355de4 100644
--- a/tests/test_eu_excise.doctest
+++ b/tests/test_eu_excise.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 This file contains more detailed doctests for the stdnum.eu.excise module. It
 tries to validate a number of Excise numbers that have been found online.
diff --git a/tests/test_eu_nace.doctest b/tests/test_eu_nace.doctest
index 96a463f..6ec1efd 100644
--- a/tests/test_eu_nace.doctest
+++ b/tests/test_eu_nace.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.eu.nace module. It
diff --git a/tests/test_eu_oss.doctest b/tests/test_eu_oss.doctest
index 23889a4..f879e86 100644
--- a/tests/test_eu_oss.doctest
+++ b/tests/test_eu_oss.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.eu.oss module.
diff --git a/tests/test_eu_vat.doctest b/tests/test_eu_vat.doctest
index 57960a6..ee2b359 100644
--- a/tests/test_eu_vat.doctest
+++ b/tests/test_eu_vat.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.eu.vat module. It
diff --git a/tests/test_eu_vat.py b/tests/test_eu_vat.py
index d0b4e21..a6d4ba3 100644
--- a/tests/test_eu_vat.py
+++ b/tests/test_eu_vat.py
@@ -14,9 +14,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 # This is a separate test file because it should not be run regularly
 # because it could negatively impact the VIES service.
diff --git a/tests/test_fi_hetu.doctest b/tests/test_fi_hetu.doctest
index 8def506..88ecdd6 100644
--- a/tests/test_fi_hetu.doctest
+++ b/tests/test_fi_hetu.doctest
@@ -15,9 +15,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.fi.hetu. It
diff --git a/tests/test_figi.doctest b/tests/test_figi.doctest
index f63728c..33d3fe5 100644
--- a/tests/test_figi.doctest
+++ b/tests/test_figi.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.figi module. It
diff --git a/tests/test_fo_vn.doctest b/tests/test_fo_vn.doctest
index b72f634..97f86d2 100644
--- a/tests/test_fo_vn.doctest
+++ b/tests/test_fo_vn.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.fo.vn module. It
diff --git a/tests/test_fr_accise.doctest b/tests/test_fr_accise.doctest
index d4484aa..8a7e74f 100644
--- a/tests/test_fr_accise.doctest
+++ b/tests/test_fr_accise.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 This file contains more detailed doctests for the stdnum.fr.accise module. It
 tries to validate a number of Excise numbers that have been found online.
diff --git a/tests/test_fr_rcs.doctest b/tests/test_fr_rcs.doctest
index 1dbdbfc..9373b3f 100644
--- a/tests/test_fr_rcs.doctest
+++ b/tests/test_fr_rcs.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.fr.rcs module.
diff --git a/tests/test_fr_siren.doctest b/tests/test_fr_siren.doctest
index 2169ec9..2e0ac35 100644
--- a/tests/test_fr_siren.doctest
+++ b/tests/test_fr_siren.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.fr.siren module.
diff --git a/tests/test_fr_siret.doctest b/tests/test_fr_siret.doctest
index a7f2f69..21515f9 100644
--- a/tests/test_fr_siret.doctest
+++ b/tests/test_fr_siret.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.fr.siret module.
diff --git a/tests/test_fr_tva.doctest b/tests/test_fr_tva.doctest
index 0c1e311..831980a 100644
--- a/tests/test_fr_tva.doctest
+++ b/tests/test_fr_tva.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.fr.tva module.
diff --git a/tests/test_gb_sedol.doctest b/tests/test_gb_sedol.doctest
index c617dbf..7827bc5 100644
--- a/tests/test_gb_sedol.doctest
+++ b/tests/test_gb_sedol.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.gb.sedol module. It
diff --git a/tests/test_gb_utr.doctest b/tests/test_gb_utr.doctest
index 93637cc..4bbc16b 100644
--- a/tests/test_gb_utr.doctest
+++ b/tests/test_gb_utr.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.gb.utr module. It
diff --git a/tests/test_gb_vat.doctest b/tests/test_gb_vat.doctest
index 1196511..613e95e 100644
--- a/tests/test_gb_vat.doctest
+++ b/tests/test_gb_vat.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.gb.vat. It
diff --git a/tests/test_gh_tin.doctest b/tests/test_gh_tin.doctest
index 6b6bec0..e3b6b59 100644
--- a/tests/test_gh_tin.doctest
+++ b/tests/test_gh_tin.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.gh.tin module. It
diff --git a/tests/test_gn_nifp.doctest b/tests/test_gn_nifp.doctest
index 9b17df5..4ace3ec 100644
--- a/tests/test_gn_nifp.doctest
+++ b/tests/test_gn_nifp.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.gn.nifp module. It
diff --git a/tests/test_gr_amka.doctest b/tests/test_gr_amka.doctest
index 6b8815f..4cef226 100644
--- a/tests/test_gr_amka.doctest
+++ b/tests/test_gr_amka.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.gr.amka module. It
diff --git a/tests/test_gs1_128.doctest b/tests/test_gs1_128.doctest
index 3d3cf5e..7036d27 100644
--- a/tests/test_gs1_128.doctest
+++ b/tests/test_gs1_128.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.gs1_128 module. It
diff --git a/tests/test_gt_nit.doctest b/tests/test_gt_nit.doctest
index eff949b..ec0aa94 100644
--- a/tests/test_gt_nit.doctest
+++ b/tests/test_gt_nit.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.gt.nit module. It
diff --git a/tests/test_iban.doctest b/tests/test_iban.doctest
index 083ce88..80b4f6e 100644
--- a/tests/test_iban.doctest
+++ b/tests/test_iban.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.iban module. It
diff --git a/tests/test_id_npwp.doctest b/tests/test_id_npwp.doctest
index 621aa53..eb160c1 100644
--- a/tests/test_id_npwp.doctest
+++ b/tests/test_id_npwp.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.id.npwp module. It
diff --git a/tests/test_ie_pps.doctest b/tests/test_ie_pps.doctest
index 6527a4f..e8f8680 100644
--- a/tests/test_ie_pps.doctest
+++ b/tests/test_ie_pps.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ie.pps module. It
diff --git a/tests/test_ie_vat.doctest b/tests/test_ie_vat.doctest
index cbdf958..736ef59 100644
--- a/tests/test_ie_vat.doctest
+++ b/tests/test_ie_vat.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ie.vat module. It
diff --git a/tests/test_il_hp.doctest b/tests/test_il_hp.doctest
index baaecc3..2cb3087 100644
--- a/tests/test_il_hp.doctest
+++ b/tests/test_il_hp.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.il.hp module. It
diff --git a/tests/test_imei.doctest b/tests/test_imei.doctest
index 7589d69..f549faf 100644
--- a/tests/test_imei.doctest
+++ b/tests/test_imei.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.imei module. It
diff --git a/tests/test_imsi.doctest b/tests/test_imsi.doctest
index dbf2078..8f726f5 100644
--- a/tests/test_imsi.doctest
+++ b/tests/test_imsi.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.imsi module. It
diff --git a/tests/test_in_pan.doctest b/tests/test_in_pan.doctest
index e3179ee..ab338dd 100644
--- a/tests/test_in_pan.doctest
+++ b/tests/test_in_pan.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.in_.pan module. It
diff --git a/tests/test_is_kennitala.doctest b/tests/test_is_kennitala.doctest
index 00ec7cd..6e05b17 100644
--- a/tests/test_is_kennitala.doctest
+++ b/tests/test_is_kennitala.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.is_.kennitala
diff --git a/tests/test_isan.doctest b/tests/test_isan.doctest
index bb670c1..806707d 100644
--- a/tests/test_isan.doctest
+++ b/tests/test_isan.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.isan module. It
diff --git a/tests/test_isbn.doctest b/tests/test_isbn.doctest
index 26ccdab..e309ddd 100644
--- a/tests/test_isbn.doctest
+++ b/tests/test_isbn.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.isbn module. It
diff --git a/tests/test_isil.doctest b/tests/test_isil.doctest
index 1668563..a37eabf 100644
--- a/tests/test_isil.doctest
+++ b/tests/test_isil.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.isil module. It
diff --git a/tests/test_isin.doctest b/tests/test_isin.doctest
index 568aa60..d6f3e68 100644
--- a/tests/test_isin.doctest
+++ b/tests/test_isin.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.isin module. It
diff --git a/tests/test_ismn.doctest b/tests/test_ismn.doctest
index 23eb5f2..f7a4b20 100644
--- a/tests/test_ismn.doctest
+++ b/tests/test_ismn.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ismn module. It
diff --git a/tests/test_iso11649.doctest b/tests/test_iso11649.doctest
index 24cdd71..7344262 100644
--- a/tests/test_iso11649.doctest
+++ b/tests/test_iso11649.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.iso11649 module. It
diff --git a/tests/test_iso6346.doctest b/tests/test_iso6346.doctest
index a6234ff..d875816 100644
--- a/tests/test_iso6346.doctest
+++ b/tests/test_iso6346.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.iso7064 package. It
diff --git a/tests/test_iso7064.doctest b/tests/test_iso7064.doctest
index 12b5743..ddb5444 100644
--- a/tests/test_iso7064.doctest
+++ b/tests/test_iso7064.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.iso7064 package. It
diff --git a/tests/test_isrc.doctest b/tests/test_isrc.doctest
index 7911078..57cf557 100644
--- a/tests/test_isrc.doctest
+++ b/tests/test_isrc.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.isrc module. It
diff --git a/tests/test_it_aic.doctest b/tests/test_it_aic.doctest
index b3f13e4..1854fcd 100644
--- a/tests/test_it_aic.doctest
+++ b/tests/test_it_aic.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.it.aic module.
diff --git a/tests/test_it_codicefiscale.doctest 
b/tests/test_it_codicefiscale.doctest
index 81b8b38..1407139 100644
--- a/tests/test_it_codicefiscale.doctest
+++ b/tests/test_it_codicefiscale.doctest
@@ -15,9 +15,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.it.codicefiscale
diff --git a/tests/test_jp_cn.doctest b/tests/test_jp_cn.doctest
index e3bf0fe..1dad021 100644
--- a/tests/test_jp_cn.doctest
+++ b/tests/test_jp_cn.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.jp.cn module. It
diff --git a/tests/test_ke_pin.doctest b/tests/test_ke_pin.doctest
index 1b730ec..7a1ced2 100644
--- a/tests/test_ke_pin.doctest
+++ b/tests/test_ke_pin.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ke.pin module. It
diff --git a/tests/test_kr_brn.doctest b/tests/test_kr_brn.doctest
index 668a975..d6246ef 100644
--- a/tests/test_kr_brn.doctest
+++ b/tests/test_kr_brn.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.kr.brn module. It
diff --git a/tests/test_kr_rrn.doctest b/tests/test_kr_rrn.doctest
index 09a1412..bebd39e 100644
--- a/tests/test_kr_rrn.doctest
+++ b/tests/test_kr_rrn.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.kr.rrn module. It
diff --git a/tests/test_lei.doctest b/tests/test_lei.doctest
index 5c2900d..bc2d5a5 100644
--- a/tests/test_lei.doctest
+++ b/tests/test_lei.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.lei module.
diff --git a/tests/test_li_peid.doctest b/tests/test_li_peid.doctest
index 3a30ac3..66eaed1 100644
--- a/tests/test_li_peid.doctest
+++ b/tests/test_li_peid.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.li.peid module. It
diff --git a/tests/test_lt_asmens.doctest b/tests/test_lt_asmens.doctest
index e472700..d160774 100644
--- a/tests/test_lt_asmens.doctest
+++ b/tests/test_lt_asmens.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.lt.asmens. It tries
diff --git a/tests/test_luhn.doctest b/tests/test_luhn.doctest
index 4409514..d6ce570 100644
--- a/tests/test_luhn.doctest
+++ b/tests/test_luhn.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.luhn module. It
diff --git a/tests/test_ma_ice.doctest b/tests/test_ma_ice.doctest
index 1014ba4..7e9d305 100644
--- a/tests/test_ma_ice.doctest
+++ b/tests/test_ma_ice.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ma.ice module. It
diff --git a/tests/test_mac.doctest b/tests/test_mac.doctest
index 2ddf501..933008d 100644
--- a/tests/test_mac.doctest
+++ b/tests/test_mac.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.mac module. It
diff --git a/tests/test_md_idno.doctest b/tests/test_md_idno.doctest
index 36f2a51..57f0ea8 100644
--- a/tests/test_md_idno.doctest
+++ b/tests/test_md_idno.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.md.idno. It tries
diff --git a/tests/test_me_pib.doctest b/tests/test_me_pib.doctest
index 7152f37..fea9192 100644
--- a/tests/test_me_pib.doctest
+++ b/tests/test_me_pib.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.me.pib module. It
diff --git a/tests/test_meid.doctest b/tests/test_meid.doctest
index 1cb551a..48a84e1 100644
--- a/tests/test_meid.doctest
+++ b/tests/test_meid.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.meid module. It
diff --git a/tests/test_mk_edb.doctest b/tests/test_mk_edb.doctest
index 1490822..2ddf484 100644
--- a/tests/test_mk_edb.doctest
+++ b/tests/test_mk_edb.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.mk.edb module. It
diff --git a/tests/test_mu_nid.doctest b/tests/test_mu_nid.doctest
index 93f6adc..07ac2ae 100644
--- a/tests/test_mu_nid.doctest
+++ b/tests/test_mu_nid.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.mu.nid module. It
diff --git a/tests/test_mx_curp.doctest b/tests/test_mx_curp.doctest
index 73eeb81..aa82baa 100644
--- a/tests/test_mx_curp.doctest
+++ b/tests/test_mx_curp.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.mx.curp module.
diff --git a/tests/test_mx_rfc.doctest b/tests/test_mx_rfc.doctest
index 7fa5c34..bfb3174 100644
--- a/tests/test_mx_rfc.doctest
+++ b/tests/test_mx_rfc.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.mx.rfc module.
diff --git a/tests/test_my_nric.doctest b/tests/test_my_nric.doctest
index c0d2193..277768e 100644
--- a/tests/test_my_nric.doctest
+++ b/tests/test_my_nric.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.my.nric. It
diff --git a/tests/test_mz_nuit.doctest b/tests/test_mz_nuit.doctest
index 5aa31b9..e44bf1e 100644
--- a/tests/test_mz_nuit.doctest
+++ b/tests/test_mz_nuit.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.mz.nuit module. It
diff --git a/tests/test_no_fodselsnummer.doctest 
b/tests/test_no_fodselsnummer.doctest
index 610e633..8c93a74 100644
--- a/tests/test_no_fodselsnummer.doctest
+++ b/tests/test_no_fodselsnummer.doctest
@@ -15,9 +15,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.no.fodselsnummer
diff --git a/tests/test_no_mva.doctest b/tests/test_no_mva.doctest
index 945974f..4d08f54 100644
--- a/tests/test_no_mva.doctest
+++ b/tests/test_no_mva.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.no.mva module. It
diff --git a/tests/test_nz_bankaccount.doctest 
b/tests/test_nz_bankaccount.doctest
index e3e7955..99fa8e7 100644
--- a/tests/test_nz_bankaccount.doctest
+++ b/tests/test_nz_bankaccount.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.nz.bankaccount
diff --git a/tests/test_nz_ird.doctest b/tests/test_nz_ird.doctest
index aa0dff3..ed67fc0 100644
--- a/tests/test_nz_ird.doctest
+++ b/tests/test_nz_ird.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.nz.ird module.
diff --git a/tests/test_pe_cui.doctest b/tests/test_pe_cui.doctest
index 9ae7dde..df4273c 100644
--- a/tests/test_pe_cui.doctest
+++ b/tests/test_pe_cui.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.pe.ruc module. It
diff --git a/tests/test_pe_ruc.doctest b/tests/test_pe_ruc.doctest
index 6fe6384..3b079fc 100644
--- a/tests/test_pe_ruc.doctest
+++ b/tests/test_pe_ruc.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.pe.ruc module. It
diff --git a/tests/test_pk_cnic.doctest b/tests/test_pk_cnic.doctest
index 8b2d038..aab7d9a 100644
--- a/tests/test_pk_cnic.doctest
+++ b/tests/test_pk_cnic.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.pk.cnic module.
diff --git a/tests/test_pl_regon.doctest b/tests/test_pl_regon.doctest
index ecd4f69..511a8e6 100644
--- a/tests/test_pl_regon.doctest
+++ b/tests/test_pl_regon.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.pl.regon module. It
diff --git a/tests/test_pt_cc.doctest b/tests/test_pt_cc.doctest
index bb2811a..65e4f06 100644
--- a/tests/test_pt_cc.doctest
+++ b/tests/test_pt_cc.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.pt.cc module. It
diff --git a/tests/test_py_ruc.doctest b/tests/test_py_ruc.doctest
index baa0843..e63001b 100644
--- a/tests/test_py_ruc.doctest
+++ b/tests/test_py_ruc.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.py.ruc module. It
diff --git a/tests/test_ro_onrc.doctest b/tests/test_ro_onrc.doctest
index 973d00d..93b7da7 100644
--- a/tests/test_ro_onrc.doctest
+++ b/tests/test_ro_onrc.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ro.onrc module.
diff --git a/tests/test_robustness.doctest b/tests/test_robustness.doctest
index 7515f63..cb0fb5c 100644
--- a/tests/test_robustness.doctest
+++ b/tests/test_robustness.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains some tests for modules in the stdnum package to
diff --git a/tests/test_rs_pib.doctest b/tests/test_rs_pib.doctest
index 80135c4..44b3bb1 100644
--- a/tests/test_rs_pib.doctest
+++ b/tests/test_rs_pib.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.rs.pib module.
diff --git a/tests/test_ru_inn.doctest b/tests/test_ru_inn.doctest
index 86ac88e..57aa0ff 100644
--- a/tests/test_ru_inn.doctest
+++ b/tests/test_ru_inn.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ru.inn module. It
diff --git a/tests/test_ru_ogrn.doctest b/tests/test_ru_ogrn.doctest
index 4302e39..c19a973 100644
--- a/tests/test_ru_ogrn.doctest
+++ b/tests/test_ru_ogrn.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ru.ogrn module.
diff --git a/tests/test_se_personnummer.doctest 
b/tests/test_se_personnummer.doctest
index 6c49322..12f7033 100644
--- a/tests/test_se_personnummer.doctest
+++ b/tests/test_se_personnummer.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.se.personnummer
diff --git a/tests/test_se_postnummer.doctest b/tests/test_se_postnummer.doctest
index dc86529..959dd81 100644
--- a/tests/test_se_postnummer.doctest
+++ b/tests/test_se_postnummer.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.se.postnummer
diff --git a/tests/test_sg_uen.doctest b/tests/test_sg_uen.doctest
index caa2d0a..b61c7d2 100644
--- a/tests/test_sg_uen.doctest
+++ b/tests/test_sg_uen.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.sg.uen module. It
diff --git a/tests/test_si_emso.doctest b/tests/test_si_emso.doctest
index 40e0293..65986f9 100644
--- a/tests/test_si_emso.doctest
+++ b/tests/test_si_emso.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.si.emso. It
diff --git a/tests/test_si_maticna.doctest b/tests/test_si_maticna.doctest
index b5f0d60..ccbf9e0 100644
--- a/tests/test_si_maticna.doctest
+++ b/tests/test_si_maticna.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.si.emso. It
diff --git a/tests/test_sn_ninea.doctest b/tests/test_sn_ninea.doctest
index 557fafd..659fffa 100644
--- a/tests/test_sn_ninea.doctest
+++ b/tests/test_sn_ninea.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.sn.ninea module. It
diff --git a/tests/test_sv_nit.doctest b/tests/test_sv_nit.doctest
index 2816111..0d60e36 100644
--- a/tests/test_sv_nit.doctest
+++ b/tests/test_sv_nit.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.sv.nit module. It
diff --git a/tests/test_th_moa.doctest b/tests/test_th_moa.doctest
index fbe1258..398758f 100644
--- a/tests/test_th_moa.doctest
+++ b/tests/test_th_moa.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.th.moa module.
diff --git a/tests/test_th_pin.doctest b/tests/test_th_pin.doctest
index eee130b..df25069 100644
--- a/tests/test_th_pin.doctest
+++ b/tests/test_th_pin.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.th.pin module.
diff --git a/tests/test_th_tin.doctest b/tests/test_th_tin.doctest
index 52e5e1d..cf743b5 100644
--- a/tests/test_th_tin.doctest
+++ b/tests/test_th_tin.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.th.tin module.
diff --git a/tests/test_tn_mf.doctest b/tests/test_tn_mf.doctest
index a45623b..d19ba8e 100644
--- a/tests/test_tn_mf.doctest
+++ b/tests/test_tn_mf.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.tn.mf module. It
diff --git a/tests/test_tr_tckimlik.doctest b/tests/test_tr_tckimlik.doctest
index c3cb4a2..55b8607 100644
--- a/tests/test_tr_tckimlik.doctest
+++ b/tests/test_tr_tckimlik.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.tr.tckimlik
diff --git a/tests/test_tr_vkn.doctest b/tests/test_tr_vkn.doctest
index 99427dd..f576e9a 100644
--- a/tests/test_tr_vkn.doctest
+++ b/tests/test_tr_vkn.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.tr.vkn module.
diff --git a/tests/test_tw_ubn.doctest b/tests/test_tw_ubn.doctest
index 127f636..06a4974 100644
--- a/tests/test_tw_ubn.doctest
+++ b/tests/test_tw_ubn.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.tw.ubn module. It
diff --git a/tests/test_ua_edrpou.doctest b/tests/test_ua_edrpou.doctest
index a51e1df..ce97c92 100644
--- a/tests/test_ua_edrpou.doctest
+++ b/tests/test_ua_edrpou.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ua.edrpou module. It
diff --git a/tests/test_ua_rntrc.doctest b/tests/test_ua_rntrc.doctest
index 638b313..57ce59b 100644
--- a/tests/test_ua_rntrc.doctest
+++ b/tests/test_ua_rntrc.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ua.rntrc module. It
diff --git a/tests/test_util.doctest b/tests/test_util.doctest
index e1097db..b9a2439 100644
--- a/tests/test_util.doctest
+++ b/tests/test_util.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.util package. It
diff --git a/tests/test_uy_rut.doctest b/tests/test_uy_rut.doctest
index 784690e..eb777b9 100644
--- a/tests/test_uy_rut.doctest
+++ b/tests/test_uy_rut.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.uy.rut module. It
diff --git a/tests/test_vatin.doctest b/tests/test_vatin.doctest
index c46c238..1c65db3 100644
--- a/tests/test_vatin.doctest
+++ b/tests/test_vatin.doctest
@@ -14,9 +14,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.vatin module. It
diff --git a/tests/test_ve_rif.doctest b/tests/test_ve_rif.doctest
index 825cfbc..eb9f308 100644
--- a/tests/test_ve_rif.doctest
+++ b/tests/test_ve_rif.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.ve.rif module.
diff --git a/tests/test_verhoeff.doctest b/tests/test_verhoeff.doctest
index 5c5d1e3..f23eb3d 100644
--- a/tests/test_verhoeff.doctest
+++ b/tests/test_verhoeff.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.verhoeff module. It
diff --git a/tests/test_vn_mst.doctest b/tests/test_vn_mst.doctest
index 54789c9..6b7849b 100644
--- a/tests/test_vn_mst.doctest
+++ b/tests/test_vn_mst.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.vn.mst module. It
diff --git a/tests/test_za_idnr.doctest b/tests/test_za_idnr.doctest
index 206ff6e..65c1228 100644
--- a/tests/test_za_idnr.doctest
+++ b/tests/test_za_idnr.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.za.idnr module. It
diff --git a/tests/test_za_tin.doctest b/tests/test_za_tin.doctest
index 917a699..4b92b91 100644
--- a/tests/test_za_tin.doctest
+++ b/tests/test_za_tin.doctest
@@ -13,9 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU
 Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public
-License along with this library; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA
+License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 
 This file contains more detailed doctests for the stdnum.za.tin module. It
diff --git a/update/at_postleitzahl.py b/update/at_postleitzahl.py
index c8f3436..c3d2cf7 100755
--- a/update/at_postleitzahl.py
+++ b/update/at_postleitzahl.py
@@ -16,9 +16,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """This download list of postal codes from Austrian Post."""
 
diff --git a/update/be_banks.py b/update/be_banks.py
index 172629e..f01ae2e 100755
--- a/update/be_banks.py
+++ b/update/be_banks.py
@@ -16,9 +16,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """This script downloads the list of banks with bank codes as used in the
 IBAN and BIC codes as published by the Belgian National Bank."""
diff --git a/update/cfi.py b/update/cfi.py
index 39bcf29..48eebe4 100755
--- a/update/cfi.py
+++ b/update/cfi.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """This script downloads the list of CFI codes as published by the SIX 
group."""
 
diff --git a/update/cn_loc.py b/update/cn_loc.py
index fe6e5a1..e06dfbe 100755
--- a/update/cn_loc.py
+++ b/update/cn_loc.py
@@ -16,9 +16,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """This downloads the birth place codes from from Wikipedia."""
 
diff --git a/update/cz_banks.py b/update/cz_banks.py
index f6b679f..b5ee242 100755
--- a/update/cz_banks.py
+++ b/update/cz_banks.py
@@ -17,9 +17,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """This script downloads the list of banks with bank codes as used in the
 IBAN and BIC codes as published by the Czech National Bank."""
diff --git a/update/do_whitelists.py b/update/do_whitelists.py
index 7aaa727..0938bcc 100755
--- a/update/do_whitelists.py
+++ b/update/do_whitelists.py
@@ -16,9 +16,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """This script downloads a ZIP file from the Dirección General de Impuestos
 Internos (DGII) web site with lists of all RNC and Cedula values and outputs
diff --git a/update/gs1_ai.py b/update/gs1_ai.py
index 54c4bd4..1ab7d27 100755
--- a/update/gs1_ai.py
+++ b/update/gs1_ai.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """This script downloads GS1 application identifiers from the GS1 web site."""
 
diff --git a/update/iban.py b/update/iban.py
index d2efa9b..a2fb89c 100755
--- a/update/iban.py
+++ b/update/iban.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """This script downloads data from SWIFT (the Society for Worldwide Interbank
 Financial Telecommunication which is the official IBAN registrar) to get
diff --git a/update/imsi.py b/update/imsi.py
index ef71851..53bcb53 100755
--- a/update/imsi.py
+++ b/update/imsi.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """This extracts a IMSI country and operator code from Wikipedia."""
 
diff --git a/update/isbn.py b/update/isbn.py
index dc2f2a7..3042ae4 100755
--- a/update/isbn.py
+++ b/update/isbn.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """This script downloads XML data from the International ISBN Agency
 website and provides a compact form of all group prefixes, and registrant
diff --git a/update/isil.py b/update/isil.py
index 87b3bf9..849a321 100755
--- a/update/isil.py
+++ b/update/isil.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """This script downloads a web page from the ISIL Registration Authority
 and screen-scrapes the national and non-national ISIL agencies and
diff --git a/update/my_bp.py b/update/my_bp.py
index eec826d..cf38422 100755
--- a/update/my_bp.py
+++ b/update/my_bp.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """This script downloads the list of states and countries and their
 birthplace code from the National Registration Department of Malaysia."""
diff --git a/update/numlist.py b/update/numlist.py
index 09417c3..b71ae47 100755
--- a/update/numlist.py
+++ b/update/numlist.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """This script uses introspection to present a list of number formats
 suitable to be included in the README.md and stdnum package description."""
diff --git a/update/nz_banks.py b/update/nz_banks.py
index 7947103..8c1d50e 100755
--- a/update/nz_banks.py
+++ b/update/nz_banks.py
@@ -16,9 +16,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """This script downloads the list of banks with bank codes as used in the
 New Zealand bank account numbers."""
diff --git a/update/oui.py b/update/oui.py
index 4fcb15d..ac1c43e 100755
--- a/update/oui.py
+++ b/update/oui.py
@@ -15,9 +15,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# License along with this library; if not, see <https://www.gnu.org/licenses/>.
 
 """This script downloads data from the IEEE web site
 https://regauth.standards.ieee.org/standards-ra-web/pub/view.html
diff --git a/update/update-all.sh b/update/update-all.sh
new file mode 100755
index 0000000..79720d0
--- /dev/null
+++ b/update/update-all.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+# go to directory that this script resides in
+cd "$(dirname "$0")"
+
+set -x
+
+# run the update scripts to generate data files
+./at_postleitzahl.py > ../stdnum/at/postleitzahl.dat
+./be_banks.py > ../stdnum/be/banks.dat
+./cfi.py > ../stdnum/cfi.dat
+./cn_loc.py > ../stdnum/cn/loc.dat
+./eu_nace.py > ../stdnum/eu/nace.dat
+./gs1_ai.py > ../stdnum/gs1_ai.dat
+./iban.py > ../stdnum/iban.dat
+./imsi.py > ../stdnum/imsi.dat
+./isbn.py > ../stdnum/isbn.dat
+./isil.py > ../stdnum/isil.dat
+./my_bp.py > ../stdnum/my/bp.dat
+./nz_banks.py > ../stdnum/nz/banks.dat
+./oui.py > ../stdnum/oui.dat

-----------------------------------------------------------------------

Summary of changes:
 COPYING                                     |  25 +-
 README.md                                   |   4 +-
 online_check/check.js                       |   4 +-
 online_check/stdnum.wsgi                    |   4 +-
 scripts/check_headers.py                    |   8 +-
 setup.py                                    |   4 +-
 stdnum/__init__.py                          |   4 +-
 stdnum/ad/__init__.py                       |   4 +-
 stdnum/ad/nrt.py                            |   4 +-
 stdnum/al/__init__.py                       |   4 +-
 stdnum/al/nipt.py                           |   4 +-
 stdnum/ar/__init__.py                       |   4 +-
 stdnum/ar/cbu.py                            |   4 +-
 stdnum/ar/cuit.py                           |   4 +-
 stdnum/ar/dni.py                            |   4 +-
 stdnum/at/__init__.py                       |   4 +-
 stdnum/at/businessid.py                     |   4 +-
 stdnum/at/postleitzahl.py                   |   4 +-
 stdnum/at/tin.py                            |   4 +-
 stdnum/at/uid.py                            |   4 +-
 stdnum/at/vnr.py                            |   4 +-
 stdnum/au/__init__.py                       |   4 +-
 stdnum/au/abn.py                            |   4 +-
 stdnum/au/acn.py                            |   4 +-
 stdnum/au/tfn.py                            |   4 +-
 stdnum/az/__init__.py                       |   4 +-
 stdnum/az/voen.py                           |   4 +-
 stdnum/be/__init__.py                       |   4 +-
 stdnum/be/bis.py                            |   4 +-
 stdnum/be/eid.py                            |   4 +-
 stdnum/be/iban.py                           |   4 +-
 stdnum/be/nn.py                             |   4 +-
 stdnum/be/ogm_vcs.py                        |   4 +-
 stdnum/be/ssn.py                            |   4 +-
 stdnum/be/vat.py                            |   4 +-
 stdnum/bg/__init__.py                       |   4 +-
 stdnum/bg/egn.py                            |   4 +-
 stdnum/bg/pnf.py                            |   4 +-
 stdnum/bg/vat.py                            |   4 +-
 stdnum/bic.py                               |   4 +-
 stdnum/bitcoin.py                           |   4 +-
 stdnum/br/__init__.py                       |   4 +-
 stdnum/br/cnpj.py                           |   4 +-
 stdnum/br/cpf.py                            |   4 +-
 stdnum/by/__init__.py                       |   4 +-
 stdnum/by/unp.py                            |   4 +-
 stdnum/ca/__init__.py                       |   4 +-
 stdnum/ca/bc_phn.py                         |   4 +-
 stdnum/ca/bn.py                             |   4 +-
 stdnum/ca/sin.py                            |   4 +-
 stdnum/casrn.py                             |   4 +-
 stdnum/cfi.py                               |   4 +-
 stdnum/ch/__init__.py                       |   4 +-
 stdnum/ch/esr.py                            |   4 +-
 stdnum/ch/ssn.py                            |   4 +-
 stdnum/ch/uid.py                            |   4 +-
 stdnum/ch/vat.py                            |   4 +-
 stdnum/cl/__init__.py                       |   4 +-
 stdnum/cl/rut.py                            |   4 +-
 stdnum/cn/__init__.py                       |   4 +-
 stdnum/cn/ric.py                            |   4 +-
 stdnum/cn/uscc.py                           |   4 +-
 stdnum/co/__init__.py                       |   4 +-
 stdnum/co/nit.py                            |   4 +-
 stdnum/cr/__init__.py                       |   4 +-
 stdnum/cr/cpf.py                            |   4 +-
 stdnum/cr/cpj.py                            |   4 +-
 stdnum/cr/cr.py                             |   4 +-
 stdnum/cu/__init__.py                       |   4 +-
 stdnum/cu/ni.py                             |   4 +-
 stdnum/cusip.py                             |   4 +-
 stdnum/cy/__init__.py                       |   4 +-
 stdnum/cy/vat.py                            |   4 +-
 stdnum/cz/__init__.py                       |   4 +-
 stdnum/cz/bankaccount.py                    |   4 +-
 stdnum/cz/dic.py                            |   4 +-
 stdnum/cz/rc.py                             |   4 +-
 stdnum/damm.py                              |   4 +-
 stdnum/de/__init__.py                       |   4 +-
 stdnum/de/handelsregisternummer.py          |   4 +-
 stdnum/de/idnr.py                           |   4 +-
 stdnum/de/leitweg.py                        |   4 +-
 stdnum/de/stnr.py                           |   4 +-
 stdnum/de/vat.py                            |   4 +-
 stdnum/de/wkn.py                            |   4 +-
 stdnum/dk/__init__.py                       |   4 +-
 stdnum/dk/cpr.py                            |   4 +-
 stdnum/dk/cvr.py                            |   4 +-
 stdnum/do/__init__.py                       |   4 +-
 stdnum/do/cedula.py                         |   4 +-
 stdnum/do/ncf.py                            |   4 +-
 stdnum/do/rnc.py                            |   4 +-
 stdnum/dz/__init__.py                       |   4 +-
 stdnum/dz/nif.py                            |   4 +-
 stdnum/ean.py                               |   4 +-
 stdnum/ec/__init__.py                       |   4 +-
 stdnum/ec/ci.py                             |   4 +-
 stdnum/ec/ruc.py                            |   4 +-
 stdnum/ee/__init__.py                       |   4 +-
 stdnum/ee/ik.py                             |   4 +-
 stdnum/ee/kmkr.py                           |   4 +-
 stdnum/ee/registrikood.py                   |   4 +-
 stdnum/eg/__init__.py                       |   4 +-
 stdnum/eg/tn.py                             |   4 +-
 stdnum/es/__init__.py                       |   4 +-
 stdnum/es/cae.py                            |   4 +-
 stdnum/es/ccc.py                            |   4 +-
 stdnum/es/cif.py                            |   4 +-
 stdnum/es/cups.py                           |   4 +-
 stdnum/es/dni.py                            |   4 +-
 stdnum/es/iban.py                           |   4 +-
 stdnum/es/nie.py                            |   4 +-
 stdnum/es/nif.py                            |   4 +-
 stdnum/es/postal_code.py                    |   4 +-
 stdnum/es/referenciacatastral.py            |   4 +-
 stdnum/eu/__init__.py                       |   4 +-
 stdnum/eu/at_02.py                          |   4 +-
 stdnum/eu/banknote.py                       |   4 +-
 stdnum/eu/ecnumber.py                       |   4 +-
 stdnum/eu/eic.py                            |   4 +-
 stdnum/eu/excise.py                         |   4 +-
 stdnum/eu/nace.py                           |   4 +-
 stdnum/eu/oss.py                            |   4 +-
 stdnum/eu/vat.py                            |   4 +-
 stdnum/exceptions.py                        |   4 +-
 stdnum/fi/__init__.py                       |   4 +-
 stdnum/fi/alv.py                            |   4 +-
 stdnum/fi/associationid.py                  |   4 +-
 stdnum/fi/hetu.py                           |   4 +-
 stdnum/fi/veronumero.py                     |   4 +-
 stdnum/fi/ytunnus.py                        |   4 +-
 stdnum/figi.py                              |   4 +-
 stdnum/fo/__init__.py                       |   4 +-
 stdnum/fo/vn.py                             |   4 +-
 stdnum/fr/__init__.py                       |   4 +-
 stdnum/fr/accise.py                         |   4 +-
 stdnum/fr/nif.py                            |   4 +-
 stdnum/fr/nir.py                            |   4 +-
 stdnum/fr/rcs.py                            |   4 +-
 stdnum/fr/siren.py                          |   4 +-
 stdnum/fr/siret.py                          |   4 +-
 stdnum/fr/tva.py                            |   4 +-
 stdnum/gb/__init__.py                       |   4 +-
 stdnum/gb/nhs.py                            |   4 +-
 stdnum/gb/sedol.py                          |   4 +-
 stdnum/gb/upn.py                            |   4 +-
 stdnum/gb/utr.py                            |   4 +-
 stdnum/gb/vat.py                            |   4 +-
 stdnum/gh/__init__.py                       |   4 +-
 stdnum/gh/tin.py                            |   4 +-
 stdnum/gn/__init__.py                       |   4 +-
 stdnum/gn/nifp.py                           |   4 +-
 stdnum/gr/__init__.py                       |   4 +-
 stdnum/gr/amka.py                           |   4 +-
 stdnum/gr/vat.py                            |   4 +-
 stdnum/grid.py                              |   4 +-
 stdnum/gs1_128.py                           |   4 +-
 stdnum/gt/__init__.py                       |   4 +-
 stdnum/gt/cui.txt                           | 121 +++++
 stdnum/gt/nit.py                            |   4 +-
 stdnum/hr/__init__.py                       |   4 +-
 stdnum/hr/oib.py                            |   4 +-
 stdnum/hu/__init__.py                       |   4 +-
 stdnum/hu/anum.py                           |   4 +-
 stdnum/iban.py                              |   4 +-
 stdnum/id/__init__.py                       |   4 +-
 stdnum/id/nik.py                            |   4 +-
 stdnum/id/npwp.py                           |   4 +-
 stdnum/ie/__init__.py                       |   4 +-
 stdnum/ie/pps.py                            |   4 +-
 stdnum/ie/vat.py                            |   4 +-
 stdnum/il/__init__.py                       |   4 +-
 stdnum/il/hp.py                             |   4 +-
 stdnum/il/idnr.py                           |   4 +-
 stdnum/imei.py                              |   4 +-
 stdnum/imo.py                               |   4 +-
 stdnum/imsi.py                              |   4 +-
 stdnum/in_/__init__.py                      |   4 +-
 stdnum/in_/aadhaar.py                       |   4 +-
 stdnum/in_/epic.py                          |   4 +-
 stdnum/in_/gstin.py                         |   4 +-
 stdnum/in_/pan.py                           |   4 +-
 stdnum/in_/vid.py                           |   4 +-
 stdnum/is_/__init__.py                      |   4 +-
 stdnum/is_/kennitala.py                     |   4 +-
 stdnum/is_/vsk.py                           |   4 +-
 stdnum/isan.py                              |   4 +-
 stdnum/isbn.py                              |   4 +-
 stdnum/isil.py                              |   4 +-
 stdnum/isin.py                              |   4 +-
 stdnum/ismn.py                              |   4 +-
 stdnum/isni.py                              |   4 +-
 stdnum/iso11649.py                          |   4 +-
 stdnum/iso6346.py                           |   4 +-
 stdnum/iso7064/__init__.py                  |   4 +-
 stdnum/iso7064/mod_11_10.py                 |   4 +-
 stdnum/iso7064/mod_11_2.py                  |   4 +-
 stdnum/iso7064/mod_37_2.py                  |   4 +-
 stdnum/iso7064/mod_37_36.py                 |   4 +-
 stdnum/iso7064/mod_97_10.py                 |   4 +-
 stdnum/iso9362.py                           |   4 +-
 stdnum/isrc.py                              |   4 +-
 stdnum/issn.py                              |   4 +-
 stdnum/it/__init__.py                       |   4 +-
 stdnum/it/aic.py                            |   4 +-
 stdnum/it/codicefiscale.py                  |   4 +-
 stdnum/it/iva.py                            |   4 +-
 stdnum/jp/__init__.py                       |   4 +-
 stdnum/jp/cn.py                             |   4 +-
 stdnum/jp/in_.py                            |   4 +-
 stdnum/ke/__init__.py                       |   4 +-
 stdnum/ke/pin.py                            |   4 +-
 stdnum/kr/__init__.py                       |   4 +-
 stdnum/kr/brn.py                            |   4 +-
 stdnum/kr/brn.txt                           | 666 ++++++++++++++++++++++++++++
 stdnum/kr/rrn.py                            |   4 +-
 stdnum/lei.py                               |   4 +-
 stdnum/li/__init__.py                       |   4 +-
 stdnum/li/peid.py                           |   4 +-
 stdnum/lt/__init__.py                       |   4 +-
 stdnum/lt/asmens.py                         |   4 +-
 stdnum/lt/pvm.py                            |   4 +-
 stdnum/lu/__init__.py                       |   4 +-
 stdnum/lu/tva.py                            |   4 +-
 stdnum/luhn.py                              |   4 +-
 stdnum/lv/__init__.py                       |   4 +-
 stdnum/lv/pvn.py                            |   4 +-
 stdnum/ma/__init__.py                       |   4 +-
 stdnum/ma/ice.py                            |   4 +-
 stdnum/mac.py                               |   4 +-
 stdnum/mc/__init__.py                       |   4 +-
 stdnum/mc/tva.py                            |   4 +-
 stdnum/md/__init__.py                       |   4 +-
 stdnum/md/idno.py                           |   4 +-
 stdnum/me/__init__.py                       |   4 +-
 stdnum/me/iban.py                           |   4 +-
 stdnum/me/pib.py                            |   4 +-
 stdnum/meid.py                              |   4 +-
 stdnum/mk/__init__.py                       |   4 +-
 stdnum/mk/edb.py                            |   4 +-
 stdnum/mt/__init__.py                       |   4 +-
 stdnum/mt/vat.py                            |   4 +-
 stdnum/mu/__init__.py                       |   4 +-
 stdnum/mu/nid.py                            |   4 +-
 stdnum/mx/__init__.py                       |   4 +-
 stdnum/mx/curp.py                           |   4 +-
 stdnum/mx/rfc.py                            |   4 +-
 stdnum/my/__init__.py                       |   4 +-
 stdnum/my/nric.py                           |   4 +-
 stdnum/mz/__init__.py                       |   4 +-
 stdnum/mz/nuit.py                           |   4 +-
 stdnum/nl/__init__.py                       |   4 +-
 stdnum/nl/brin.py                           |   4 +-
 stdnum/nl/bsn.py                            |   4 +-
 stdnum/nl/btw.py                            |   4 +-
 stdnum/nl/identiteitskaartnummer.py         |   4 +-
 stdnum/nl/onderwijsnummer.py                |   4 +-
 stdnum/nl/postcode.py                       |   4 +-
 stdnum/no/__init__.py                       |   4 +-
 stdnum/no/fodselsnummer.py                  |   4 +-
 stdnum/no/iban.py                           |   4 +-
 stdnum/no/kontonr.py                        |   4 +-
 stdnum/no/mva.py                            |   4 +-
 stdnum/no/orgnr.py                          |   4 +-
 stdnum/numdb.py                             |   4 +-
 stdnum/nz/__init__.py                       |   4 +-
 stdnum/nz/bankaccount.py                    |   4 +-
 stdnum/nz/ird.py                            |   4 +-
 stdnum/pe/__init__.py                       |   4 +-
 stdnum/pe/cui.py                            |   4 +-
 stdnum/pe/ruc.py                            |   4 +-
 stdnum/pk/__init__.py                       |   4 +-
 stdnum/pk/cnic.py                           |   4 +-
 stdnum/pl/__init__.py                       |   4 +-
 stdnum/pl/nip.py                            |   4 +-
 stdnum/pl/pesel.py                          |   4 +-
 stdnum/pl/regon.py                          |   4 +-
 stdnum/pt/__init__.py                       |   4 +-
 stdnum/pt/cc.py                             |   4 +-
 stdnum/pt/nif.py                            |   4 +-
 stdnum/py/__init__.py                       |   4 +-
 stdnum/py/ruc.py                            |   4 +-
 stdnum/ro/__init__.py                       |   4 +-
 stdnum/ro/cf.py                             |   4 +-
 stdnum/ro/cnp.py                            |   4 +-
 stdnum/ro/cui.py                            |   4 +-
 stdnum/ro/onrc.py                           |   4 +-
 stdnum/rs/__init__.py                       |   4 +-
 stdnum/rs/pib.py                            |   4 +-
 stdnum/ru/__init__.py                       |   4 +-
 stdnum/ru/inn.py                            |   4 +-
 stdnum/ru/ogrn.py                           |   4 +-
 stdnum/se/__init__.py                       |   4 +-
 stdnum/se/orgnr.py                          |   4 +-
 stdnum/se/personnummer.py                   |   4 +-
 stdnum/se/postnummer.py                     |   4 +-
 stdnum/se/vat.py                            |   4 +-
 stdnum/sg/__init__.py                       |   4 +-
 stdnum/sg/uen.py                            |   4 +-
 stdnum/si/__init__.py                       |   4 +-
 stdnum/si/ddv.py                            |   4 +-
 stdnum/si/emso.py                           |   4 +-
 stdnum/si/maticna.py                        |   4 +-
 stdnum/sk/__init__.py                       |   4 +-
 stdnum/sk/dph.py                            |   4 +-
 stdnum/sk/rc.py                             |   4 +-
 stdnum/sm/__init__.py                       |   4 +-
 stdnum/sm/coe.py                            |   4 +-
 stdnum/sn/__init__.py                       |   4 +-
 stdnum/sn/ninea.py                          |   4 +-
 stdnum/sv/__init__.py                       |   4 +-
 stdnum/sv/nit.py                            |   4 +-
 stdnum/th/__init__.py                       |   4 +-
 stdnum/th/moa.py                            |   4 +-
 stdnum/th/pin.py                            |   4 +-
 stdnum/th/tin.py                            |   4 +-
 stdnum/tn/__init__.py                       |   4 +-
 stdnum/tn/mf.py                             |   4 +-
 stdnum/tr/__init__.py                       |   4 +-
 stdnum/tr/tckimlik.py                       |   4 +-
 stdnum/tr/vkn.py                            |   4 +-
 stdnum/tw/__init__.py                       |   4 +-
 stdnum/tw/ubn.py                            |   4 +-
 stdnum/ua/__init__.py                       |   4 +-
 stdnum/ua/edrpou.py                         |   4 +-
 stdnum/ua/rntrc.py                          |   4 +-
 stdnum/us/__init__.py                       |   4 +-
 stdnum/us/atin.py                           |   4 +-
 stdnum/us/ein.py                            |   4 +-
 stdnum/us/itin.py                           |   4 +-
 stdnum/us/ptin.py                           |   4 +-
 stdnum/us/rtn.py                            |   4 +-
 stdnum/us/ssn.py                            |   4 +-
 stdnum/us/tin.py                            |   4 +-
 stdnum/util.py                              |   4 +-
 stdnum/uy/__init__.py                       |   4 +-
 stdnum/uy/rut.py                            |   4 +-
 stdnum/vatin.py                             |   4 +-
 stdnum/ve/__init__.py                       |   4 +-
 stdnum/ve/rif.py                            |   4 +-
 stdnum/verhoeff.py                          |   4 +-
 stdnum/vn/__init__.py                       |   4 +-
 stdnum/vn/mst.py                            |   4 +-
 stdnum/za/__init__.py                       |   4 +-
 stdnum/za/idnr.py                           |   4 +-
 stdnum/za/tin.py                            |   4 +-
 tests/test_ad_nrt.doctest                   |   4 +-
 tests/test_al_nipt.doctest                  |   4 +-
 tests/test_ar_cbu.doctest                   |   4 +-
 tests/test_ar_cuit.doctest                  |   4 +-
 tests/test_at_tin.doctest                   |   4 +-
 tests/test_au_abn.doctest                   |   4 +-
 tests/test_au_acn.doctest                   |   4 +-
 tests/test_au_tfn.doctest                   |   4 +-
 tests/test_az_voen.doctest                  |   4 +-
 tests/test_be_bis.doctest                   |   4 +-
 tests/test_be_iban.doctest                  |   4 +-
 tests/test_be_nn.doctest                    |   4 +-
 tests/test_be_ssn.doctest                   |   4 +-
 tests/test_be_vat.doctest                   |   4 +-
 tests/test_bg_egn.doctest                   |   4 +-
 tests/test_bg_vat.doctest                   |   4 +-
 tests/test_bic.doctest                      |   4 +-
 tests/test_bitcoin.doctest                  |   4 +-
 tests/test_br_cnpj.doctest                  |   4 +-
 tests/test_by_unp.doctest                   |   4 +-
 tests/test_by_unp.py                        |   4 +-
 tests/test_ca_bn.doctest                    |   4 +-
 tests/test_casrn.doctest                    |   4 +-
 tests/test_cfi.doctest                      |   4 +-
 tests/test_ch_esr.doctest                   |   4 +-
 tests/test_ch_ssn.doctest                   |   4 +-
 tests/test_ch_uid.doctest                   |   4 +-
 tests/test_ch_uid.py                        |   4 +-
 tests/test_ch_vat.doctest                   |   4 +-
 tests/test_cl_rut.doctest                   |   4 +-
 tests/test_cn_ric.doctest                   |   4 +-
 tests/test_cn_uscc.doctest                  |   4 +-
 tests/test_co_nit.doctest                   |   4 +-
 tests/test_cr_cpf.doctest                   |   4 +-
 tests/test_cr_cpj.doctest                   |   4 +-
 tests/test_cr_cr.doctest                    |   4 +-
 tests/test_cusip.doctest                    |   4 +-
 tests/test_cz_bankaccount.doctest           |   4 +-
 tests/test_cz_rc.doctest                    |   4 +-
 tests/test_damm.doctest                     |   4 +-
 tests/test_de_handelsregisternummer.doctest |   4 +-
 tests/test_de_handelsregisternummer.py      |   4 +-
 tests/test_de_idnr.doctest                  |   4 +-
 tests/test_de_leitweg.doctest               |   4 +-
 tests/test_de_stnr.doctest                  |   4 +-
 tests/test_de_wkn.doctest                   |   4 +-
 tests/test_do_cedula.doctest                |   4 +-
 tests/test_do_cedula.py                     |   4 +-
 tests/test_do_ncf.doctest                   |   4 +-
 tests/test_do_ncf.py                        |   4 +-
 tests/test_do_rnc.doctest                   |   4 +-
 tests/test_do_rnc.py                        |   4 +-
 tests/test_dz_nif.doctest                   |   4 +-
 tests/test_ean.doctest                      |   4 +-
 tests/test_ec_ci.doctest                    |   4 +-
 tests/test_ec_ruc.doctest                   |   4 +-
 tests/test_ee_ik.doctest                    |   4 +-
 tests/test_ee_registrikood.doctest          |   4 +-
 tests/test_eg_tn.doctest                    |   4 +-
 tests/test_es_cae.doctest                   |   4 +-
 tests/test_es_cups.doctest                  |   4 +-
 tests/test_es_nif.doctest                   |   4 +-
 tests/test_es_referenciacatastral.doctest   |   4 +-
 tests/test_eu_banknote.doctest              |   4 +-
 tests/test_eu_ecnumber.doctest              |   4 +-
 tests/test_eu_eic.doctest                   |   4 +-
 tests/test_eu_excise.doctest                |   4 +-
 tests/test_eu_nace.doctest                  |   4 +-
 tests/test_eu_oss.doctest                   |   4 +-
 tests/test_eu_vat.doctest                   |   4 +-
 tests/test_eu_vat.py                        |   4 +-
 tests/test_fi_hetu.doctest                  |   4 +-
 tests/test_figi.doctest                     |   4 +-
 tests/test_fo_vn.doctest                    |   4 +-
 tests/test_fr_accise.doctest                |   4 +-
 tests/test_fr_rcs.doctest                   |   4 +-
 tests/test_fr_siren.doctest                 |   4 +-
 tests/test_fr_siret.doctest                 |   4 +-
 tests/test_fr_tva.doctest                   |   4 +-
 tests/test_gb_sedol.doctest                 |   4 +-
 tests/test_gb_utr.doctest                   |   4 +-
 tests/test_gb_vat.doctest                   |   4 +-
 tests/test_gh_tin.doctest                   |   4 +-
 tests/test_gn_nifp.doctest                  |   4 +-
 tests/test_gr_amka.doctest                  |   4 +-
 tests/test_gs1_128.doctest                  |   4 +-
 tests/test_gt_nit.doctest                   |   4 +-
 tests/test_iban.doctest                     |   4 +-
 tests/test_id_npwp.doctest                  |   4 +-
 tests/test_ie_pps.doctest                   |   4 +-
 tests/test_ie_vat.doctest                   |   4 +-
 tests/test_il_hp.doctest                    |   4 +-
 tests/test_imei.doctest                     |   4 +-
 tests/test_imsi.doctest                     |   4 +-
 tests/test_in_pan.doctest                   |   4 +-
 tests/test_is_kennitala.doctest             |   4 +-
 tests/test_isan.doctest                     |   4 +-
 tests/test_isbn.doctest                     |   4 +-
 tests/test_isil.doctest                     |   4 +-
 tests/test_isin.doctest                     |   4 +-
 tests/test_ismn.doctest                     |   4 +-
 tests/test_iso11649.doctest                 |   4 +-
 tests/test_iso6346.doctest                  |   4 +-
 tests/test_iso7064.doctest                  |   4 +-
 tests/test_isrc.doctest                     |   4 +-
 tests/test_it_aic.doctest                   |   4 +-
 tests/test_it_codicefiscale.doctest         |   4 +-
 tests/test_jp_cn.doctest                    |   4 +-
 tests/test_ke_pin.doctest                   |   4 +-
 tests/test_kr_brn.doctest                   |   4 +-
 tests/test_kr_rrn.doctest                   |   4 +-
 tests/test_lei.doctest                      |   4 +-
 tests/test_li_peid.doctest                  |   4 +-
 tests/test_lt_asmens.doctest                |   4 +-
 tests/test_luhn.doctest                     |   4 +-
 tests/test_ma_ice.doctest                   |   4 +-
 tests/test_mac.doctest                      |   4 +-
 tests/test_md_idno.doctest                  |   4 +-
 tests/test_me_pib.doctest                   |   4 +-
 tests/test_meid.doctest                     |   4 +-
 tests/test_mk_edb.doctest                   |   4 +-
 tests/test_mu_nid.doctest                   |   4 +-
 tests/test_mx_curp.doctest                  |   4 +-
 tests/test_mx_rfc.doctest                   |   4 +-
 tests/test_my_nric.doctest                  |   4 +-
 tests/test_mz_nuit.doctest                  |   4 +-
 tests/test_no_fodselsnummer.doctest         |   4 +-
 tests/test_no_mva.doctest                   |   4 +-
 tests/test_nz_bankaccount.doctest           |   4 +-
 tests/test_nz_ird.doctest                   |   4 +-
 tests/test_pe_cui.doctest                   |   4 +-
 tests/test_pe_ruc.doctest                   |   4 +-
 tests/test_pk_cnic.doctest                  |   4 +-
 tests/test_pl_regon.doctest                 |   4 +-
 tests/test_pt_cc.doctest                    |   4 +-
 tests/test_py_ruc.doctest                   |   4 +-
 tests/test_ro_onrc.doctest                  |   4 +-
 tests/test_robustness.doctest               |   4 +-
 tests/test_rs_pib.doctest                   |   4 +-
 tests/test_ru_inn.doctest                   |   4 +-
 tests/test_ru_ogrn.doctest                  |   4 +-
 tests/test_se_personnummer.doctest          |   4 +-
 tests/test_se_postnummer.doctest            |   4 +-
 tests/test_sg_uen.doctest                   |   4 +-
 tests/test_si_emso.doctest                  |   4 +-
 tests/test_si_maticna.doctest               |   4 +-
 tests/test_sn_ninea.doctest                 |   4 +-
 tests/test_sv_nit.doctest                   |   4 +-
 tests/test_th_moa.doctest                   |   4 +-
 tests/test_th_pin.doctest                   |   4 +-
 tests/test_th_tin.doctest                   |   4 +-
 tests/test_tn_mf.doctest                    |   4 +-
 tests/test_tr_tckimlik.doctest              |   4 +-
 tests/test_tr_vkn.doctest                   |   4 +-
 tests/test_tw_ubn.doctest                   |   4 +-
 tests/test_ua_edrpou.doctest                |   4 +-
 tests/test_ua_rntrc.doctest                 |   4 +-
 tests/test_util.doctest                     |   4 +-
 tests/test_uy_rut.doctest                   |   4 +-
 tests/test_vatin.doctest                    |   4 +-
 tests/test_ve_rif.doctest                   |   4 +-
 tests/test_verhoeff.doctest                 |   4 +-
 tests/test_vn_mst.doctest                   |   4 +-
 tests/test_za_idnr.doctest                  |   4 +-
 tests/test_za_tin.doctest                   |   4 +-
 update/at_postleitzahl.py                   |   4 +-
 update/be_banks.py                          |   4 +-
 update/cfi.py                               |   4 +-
 update/cn_loc.py                            |   4 +-
 update/cz_banks.py                          |   4 +-
 update/do_whitelists.py                     |   4 +-
 update/gs1_ai.py                            |   4 +-
 update/iban.py                              |   4 +-
 update/imsi.py                              |   4 +-
 update/isbn.py                              |   4 +-
 update/isil.py                              |   4 +-
 update/my_bp.py                             |   4 +-
 update/numlist.py                           |   4 +-
 update/nz_banks.py                          |   4 +-
 update/oui.py                               |   4 +-
 update/update-all.sh                        |  21 +
 527 files changed, 1343 insertions(+), 1586 deletions(-)
 create mode 100644 stdnum/gt/cui.txt
 create mode 100644 stdnum/kr/brn.txt
 create mode 100755 update/update-all.sh


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