| ISO 639-3 | art-001 |
| rea | |
| ISO 639-3 Reference Names | art-289 | Rerau |
| ISO 639-3 Print Names | art-290 | Rerau |
| ISO 639-3 Inverted Names | art-291 | Rerau |
| Ethnologue Primary Language Names | art-323 | Rerau |
| Glottolog Languoid Names | art-326 | Rerau |
| Glottocode | art-327 | rera1240 |
| Glottolog Primary Key | art-328 | 42925 |
| Ethnologue Language Names | art-330 | Rerau |
| English | eng-000 | Rerau |