| ISO 639-3 | art-001 |
| kkq | |
| ISO 639-3 Reference Names | art-289 | Kaeku |
| ISO 639-3 Print Names | art-290 | Kaeku |
| ISO 639-3 Inverted Names | art-291 | Kaeku |
| ISO 639-3 Inverted Names | art-291 | Kaiku |
| Ethnologue Primary Language Names | art-323 | Kaiku |
| Glottolog Languoid Names | art-326 | Kaiku |
| Glottocode | art-327 | kaik1247 |
| Glottolog Primary Key | art-328 | 30938 |
| Ethnologue Language Names | art-330 | Ikaiku |
| Ethnologue Language Names | art-330 | Kaiko |
| Ethnologue Language Names | art-330 | Kaiku |
| English | eng-000 | Kaiku |