| Iso 3166-1 Alpha-2 |
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USES AND APPLICATIONS The codes are used in different environments and are also part of other standards. In some cases they are not perfectly implemented. Perfect implementations The two-letter ISO 3166-1 codes are used in
Imperfect implementations Starting in 1985 , the two-letter codes have been used in domain names on the Internet , where they are used to form country code Top-level Domain s, with some exceptions e.g. United Kingdom, where the Internet Assigned Numbers Authority did not follow the ISO 3166-1 and used UK instead of GB. For a complete list of exceptions, see the Country Code Top-level Domain article. WIPO standard ST.3 (for encoding country which issued a patent or trademark). CHANGES Changes to ISO 3166-1 alpha-2 are tracked by ISO 3166-3 . CURRENT ELEMENTS Note that AA, ZZ and the ranges QM-QZ and XA-XZ are reserved for private use. For example:
If a country code cannot be found in the list then it is probably obsolete, in which case it should be found in the list of obsolete country codes, further below. ISO 3166-1 Alpha-2 Officially Assigned Code Elements list The following is a complete list of the current ISO 3166-1 two-letter codes, with three columns:
ISO 3166-1 Alpha-2 Reserved Code Elements list Reserved code elements are codes which, while not ISO 3166-1 codes, are in use for some applications in conjunction with the ISO 3166 codes. The ISO 3166 MA therefore reserves them, so that they are not used for new official ISO 3166 codes, thereby creating conflicts between the standard and those applications. The alpha-2 reserved code elements list, as of July 23 , 2003 , is divided into the following four categories. Transitional reservations A transitional reservation refers to a code which was formerly present in ISO 3166, but which since has been deleted. It will be maintained as a transitional reservation for at least five years, for the sake of users who still need to refer to the former entity or whose systems have not yet been updated to refer to the new code. The transitionally reserved alpha-2 code elements are: Indeterminate reservations The indeterminately reserved alpha-2 code elements are code elements used to identify vehicles under the 1949 and 1968 United Nations Road Traffic Conventions. These codes differ from those used in ISO 3166. The ISO 3166 MA hopes that these codes will eventually be phased out and that ISO 3166-1 codes will be used instead; but in the meantime they are reserved, to avoid conflicts between ISO 3166-1 and the Conventions, and to facilitate any transition from the Convention codes to ISO 3166-1 codes. These codes are as follows: Notes: #Code notified to United Nations Secretary-General under 1949 and/or 1968 Road Traffic Conventions #Code in use for road transport purposes, but not notified to United Nations Secretary-General under 1949 Road Traffic Convention #Code under 1949 Road Traffic Convention #Code under 1968 Road Traffic Convention #This code is in use to refer to both Bolivia and Botswana Exceptional reservations Exceptionally reserved alpha-2 code elements are reserved permanently because they are needed for particular purposes. ISO 3166 MA only authorizes their use for the particular purpose for which they were established. The list is as follows: The following three codes were also under exceptional reservation, until the update from 2006-03-29 included them in the standard: Other reservations In addition, the ISO 3166 MA has undertaken, for the time being, not to use the following alpha-2 codes from WIPO Standard ST.3. However, this undertaking is not classified as a transitional, indeterminate or transitional reservation, since the codes do not refer to countries, dependent areas or other geographic regions or localities: In addition, WIPO Standard ST.3 also uses EA to code the Eurasian Patent Organization . However, ISO 3166 MA has stated it cannot guarantee to reserve the code EA from use, since it is already used for customs purposes to represent Ceuta and Melilla . ISO 3166 MA proposed in 1995 that EV be used by WIPO for the purpose of representing the Eurasian Patent Organization; however, this request was not honoured by WIPO. OTHER WITHDRAWN CODES See ISO 3166-3 for a full list of withdrawn codes. SEE ALSO
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