| UNESCO Atlas of the World’s Languages in Danger ID | art-329 |
| 1455 | |
| ISO 639-3 | art-001 | arp |
| Glottolog Languoid Names | art-326 | Arapaho |
| Glottocode | art-327 | arap1274 |
| Glottolog Primary Key | art-328 | 23815 |
| English | eng-000 | Arapaho |
| français | fra-000 | arapaho |
| español | spa-000 | arapaho |