| UNESCO Atlas of the World’s Languages in Danger ID | art-329 |
| 776 | |
| ISO 639-3 | art-001 | kuu |
| Glottolog Languoid Names | art-326 | Upper Kuskokwim |
| Glottocode | art-327 | uppe1438 |
| Glottolog Primary Key | art-328 | 44834 |
| English | eng-000 | Upper Kuskokwim |
| français | fra-000 | haut-kuskokwim |
| español | spa-000 | cuscoquín alto |