ISO 3166-1 alpha-3 codes are three-letter country codes defined in ISO 3166-1, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), to represent countries, dependent territories, and special areas of geographical interest.
| Type | pattern , related to country | |
| Wikidata property | P298 | |
| Regular expression | [A-Z]{3} | |
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| Classification | Classification | categorical |
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