
The European Commission generally uses ISO 3166-1 alpha-2 codes with two exceptions: EL (not GR) is used to represent Greece, and UK (not GB) is used to represent the United Kingdom. The WIPO coding standard ST.3 is based on ISO 3166-1 alpha-2 codes, but includes a number of additional codes for international intellectual property organizations, which are currently reserved and not used at the present stage in ISO 3166-1. gb as its ccTLD, as UK is currently exceptionally reserved in ISO 3166-1 on the request of the United Kingdom.
#The most unknown country code
For example, the United Kingdom, whose alpha-2 code is GB, uses. The Internet Assigned Numbers Authority currently assigns the ccTLDs mostly following the alpha-2 codes, but with a few exceptions. Starting in 1985, ISO 3166-1 alpha-2 codes have been used in the Domain Name System as country code top-level domains (ccTLDs). Implemented by the United Nations Economic Commission for Europe United Nations Code for Trade and Transport Locations International Standard Identifier for Libraries and Related Organizations (ISIL) International Bank Account Number (IBAN) International Securities Identifying Number ( ISIN) International Standard Recording Code (ISRC) The ISO 3166-1 alpha-2 codes are used in the following standards: In some cases they are not perfectly implemented.


The ISO 3166-1 alpha-2 codes are used in different environments and are also part of other standards. 2.4.4 Codes currently agreed not to use.
