- A three-part standard - ISO 3166 - describes the respective functions of the standard's three parts.
- Internet Country Codes - An alphabetic list of the two-letter letter country codes used as internet top level domains, with the English-language country names.
- ISO 3166 - Code lists and updates, from the official ISO site.
- ISO 3166 Maintenance Agency (ISO 3166/MA) - Page of the organization which maintains the ISO 3166 list of country codes. Downloadable list of the two letter country codes and French or English country names.
- USPS ICL to ISO 3166 Mapping - Mapping of United States Postal Service Index of Countries and Localities to ISO 3166 codes.
