| ISO 639-3 | art-001 |
| nhk | |
| ISO 639-3 Reference Names | art-289 | Isthmus-Cosoleacaque Nahuatl |
| ISO 639-3 Print Names | art-290 | Isthmus-Cosoleacaque Nahuatl |
| ISO 639-3 Inverted Names | art-291 | Nahuatl, Isthmus-Cosoleacaque |
| Ethnologue Primary Language Names | art-323 | Nahuatl, Isthmus-Cosoleacaque |
| Glottolog Languoid Names | art-326 | Isthmus-Cosoleacaque Nahuatl |
| Glottocode | art-327 | isth1240 |
| Glottolog Primary Key | art-328 | 34624 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 1500 |
| Ethnologue Language Names | art-330 | Cosoleacaque Aztec |
| Ethnologue Language Names | art-330 | Nahuatl, Isthmus-Cosoleacaque |
| Ethnologue Language Names | art-330 | Náhuatl del Istmo-Cosoleacaque |
| English | eng-000 | Isthmus-Cosoleacaque Nahuatl |
| English | eng-000 | Tabasco Náhuatl |
| français | fra-000 | náhuatl de Tabasco |
| español | spa-000 | nahua de Tabasco |