| ISO 639-3 | art-001 |
| ulf | |
| ISO 639-3 Reference Names | art-289 | Usku |
| ISO 639-3 Print Names | art-290 | Afra |
| ISO 639-3 Print Names | art-290 | Usku |
| ISO 639-3 Inverted Names | art-291 | Afra |
| ISO 639-3 Inverted Names | art-291 | Usku |
| Ethnologue Primary Language Names | art-323 | Usku |
| Glottolog Languoid Names | art-326 | Usku |
| Glottocode | art-327 | usku1243 |
| Glottolog Primary Key | art-328 | 44546 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 2575 |
| Ethnologue Language Names | art-330 | Afra |
| Ethnologue Language Names | art-330 | Usku |
| English | eng-000 | Usku |
| français | fra-000 | usku |
| español | spa-000 | usku |