| français | fra-000 |
| frison du nord | |
| ISO 639-3 | art-001 | frr |
| Glottolog Languoid Names | art-326 | Northern Frisian |
| Glottocode | art-327 | nort2626 |
| Glottolog Primary Key | art-328 | 37016 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 394 |
| English | eng-000 | North Frisian |
| español | spa-000 | frisón septentrional |