| Glottolog Primary Key | art-328 |
| 104491 | |
| ISO 639-3 | art-001 | pih |
| Glottolog Languoid Names | art-326 | Pitcairn-Norfolk |
| Glottocode | art-327 | pitc1234 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 2622 |
| English | eng-000 | Norfolk-Pitcairn |
| français | fra-000 | pitkern-norfolk |
| español | spa-000 | pitcairn-norfolk |