| ISO 639-3 | art-001 |
| ont | |
| ISO 639-3 Reference Names | art-289 | Ontenu |
| ISO 639-3 Print Names | art-290 | Ontenu |
| ISO 639-3 Inverted Names | art-291 | Ontenu |
| Ethnologue Primary Language Names | art-323 | Ontenu |
| Glottolog Languoid Names | art-326 | Ontenu |
| Glottocode | art-327 | onte1239 |
| Glottolog Primary Key | art-328 | 43424 |
| Ethnologue Language Names | art-330 | Ontena |
| Ethnologue Language Names | art-330 | Ontenu |
| English | eng-000 | Ontenu |