Additionally these rules can and do change. For example I know that the national numbering plan in the Czech Republic changed around 2002 for instance so a lea

Additionally these rules can and do change. For example I know that the national numbering plan in the Czech Republic changed around 2002 for instance so a leading 0 for national calls was removed. Getting all websites in the world to understand changing numbering plans would be quite a feat, and for most sites not worth the effort. http://www.itu.int/itudoc/itu-t/number/c/cze/76045.html http://www.itu.int/itudoc/itu-t/number/c/cze/76045.html