| Gaeilge | gle-000 |
| folíne | |
| български | bul-000 | междуградска |
| Deutsch | deu-000 | Durchwahl |
| English | eng-000 | extension |
| Gaeilge | gle-000 | fostríoc |
| yn Ghaelg | glv-000 | fo-linney |
| 日本語 | jpn-000 | 内線 |
| Nederlands | nld-000 | toestel |
| Nederlands | nld-000 | toestelnummer |
| română | ron-000 | prefix telefonic |