| English | eng-000 |
| Tlahuica | |
| ISO 639-3 | art-001 | ocu |
| Glottolog Languoid Names | art-326 | Atzingo Matlatzinca |
| Glottocode | art-327 | atzi1235 |
| Glottolog Primary Key | art-328 | 39061 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 937 |
| français | fra-000 | tlahuica |
| español | spa-000 | tlahuica |