| English | eng-000 |
| South Italian | |
| ISO 639-3 | art-001 | nap |
| Glottolog Languoid Names | art-326 | Neapolitan |
| Glottocode | art-327 | neap1235 |
| Glottolog Primary Key | art-328 | 38725 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 1022 |
| français | fra-000 | italien du sud |
| español | spa-000 | napolitano-calabrés |