| euskara | eus-000 |
| Castelsardo | |
| català | cat-000 | Castelsardo |
| Deutsch | deu-000 | Castelsardo |
| English | eng-000 | Castelsardo |
| Esperanto | epo-000 | Castelsardo |
| français | fra-000 | Castelsardo |
| italiano | ita-000 | Castelsardo |
| 日本語 | jpn-000 | カステルサルド |
| napulitano | nap-000 | Castelsardo |
| Nederlands | nld-000 | Castelsardo |
| polski | pol-000 | Castelsardo |
| português | por-000 | Castelsardo |
| Volapük | vol-000 | Castelsardo |