Currently for Argentina, ISO 3166-2 codes are defined for 1 city and 23 provinces. The city Buenos Aires is the capital of the country and has special status similar to the provinces.
Each code consists of two parts, separated by a hyphen. The first part is AR, the ISO 3166-1 alpha-2 code of Argentina. The second part is a letter, originally used in vehicle registration plates (the letters I and O are not used since they could be mistaken as 1 and 0 respectively and were left out of license plates), and currently used in postal codes.
Current codes
Subdivision names are listed as in the ISO 3166-2 standard published by the ISO 3166 Maintenance Agency (ISO 3166/MA).
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