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ISO 3166-1 alpha-3 – three-letter country codes which may allow a better visual association between the codes and the country names than the 3166-1 alpha-2 codes. ISO 3166-1 numeric – three-digit country codes which are identical to those developed and maintained by the United Nations Statistics Division, with the advantage of script ...
The Internet Assigned Numbers Authority currently assigns the ccTLDs mostly following the alpha-2 codes, but with a few exceptions. [8] For example, the United Kingdom, whose alpha-2 code is GB, uses .uk instead of .gb as its ccTLD, as UK is currently exceptionally reserved in ISO 3166-1 on the request of the United Kingdom.
Two-letter country codes are used to represent countries and states (often both widely recognized and not) as a code of two letters. ISO 3166-1 alpha-2 is the main set of two-letter country codes that is currently used. This standard set of codes is a part of ISO 3166-1, also maintains a list of three-letter codes for countries (ISO 3166-1 ...
A credit card security code is a three- or four-digit number that’s found only on a physical credit card. ... Mastercard and Visa: Three digits on the back of the card at the right end of the ...
First digit. Industry. 1. Airlines. 2. Airlines and Financial. 3. Travel and Entertainment (includes Amex) 4. Banking and Financial (includes Visa) 5. Banking and Financial (includes Mastercard)
BRN - IOC code for Bahrain [a] and ISO code for Brunei [b] Historically, ambiguous trigraphs include: ANT - IOC code for Antigua and Barbuda [c], and historical ISO and FIFA code for the Netherlands Antilles [d] (until 2010) [e] BUR - IOC code for Burkina Faso [f] (since 1984) [g], and historical ISO and FIFA code for Burma [h] (until 1989) [i]
The FIPS standard includes both the codes for independent countries (similar but often incompatible with the ISO 3166-1 alpha-2 standard) and the codes for top-level subdivision of the countries (similar to but usually incompatible with the ISO 3166-2 standard). The ISO 3166 codes are used by the United Nations and for Internet top-level ...
This is a list of heritage NATO country codes. Up to and including the seventh edition of STANAG 1059, these were two-letter codes (digrams). The eighth edition, promulgated 19 February 2004, and effective 1 April 2004, replaced all codes with new ones based on the ISO 3166-1 alpha-2 codes. Additional codes cover gaps in the ISO coverage, deal ...