| ISO 639-3 | art-001 |
| usp | |
| ISO 639-3 Reference Names | art-289 | Uspanteco |
| ISO 639-3 Print Names | art-290 | Uspanteco |
| ISO 639-3 Inverted Names | art-291 | Uspanteco |
| Ethnologue Primary Language Names | art-323 | Uspanteko |
| Glottolog Languoid Names | art-326 | Uspanteco |
| Glottocode | art-327 | uspa1245 |
| Glottolog Primary Key | art-328 | 44756 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 1832 |
| Ethnologue Language Names | art-330 | Uspanteco |
| Ethnologue Language Names | art-330 | Uspanteko |
| English | eng-000 | Uspanteco |
| English | eng-000 | Uspantek |
| français | fra-000 | uspantèque |
| español | spa-000 | uspanteco |