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PTI is an affiliate of ICANN. IANA is responsible for management of the DNS root zone. This role means assigning the operators of top-level domains, including country code domain names, which are based on ISO 3166 alpha-2 country code elements. The Domain Name System Structure and Delegation have been described in RFC 1591, March 1994
Zone 5 uses eight 2-digit codes (51–58) and two sets of 3-digit codes (50x, 59x) to serve South and Central America. Zone 6 uses seven 2-digit codes (60–66) and three sets of 3-digit codes (67x–69x) to serve Southeast Asia and Oceania. Zone 7 uses an integrated numbering plan; two digits (7x) determine the area served: Russia or Kazakhstan.
Below is a list of two-letter codes (ISO alpha-2), and the three letter codes (ISO alpha-3), as well as the United Nations, used numerical code M49 for countries, dependencies, and other areas. (Dependencies marked in Italic writing) Country. ISO 3166 Alpha-2. ISO 3166 Alpha-3. Afghanistan.
U.S. Federal Information Processing Standard No. 10. An even more detailed version of these country codes can also be obtained as a CSV file in the download area. A list of all international calling codes is also available separately. Country. ISO 3166-1. alpha2. ISO 3166-1. alpha3. ISO 3166-1.
It allows you to download the most recent, official lists of country codes and/or subdivisions not to mention formerly used codes in one convenient location. The collection contains the codes from parts 1, 2 and 3 of ISO 3166 in 3 different formats: .xml, .csv, and .xls for easy integration into your own systems.
