Netnummers in IJsland
| Netnummer▲ | Stad↕ | Bestuursregio↕ | Inwonersaantal stad↕ | Land/regio | Tijdzone |
|---|
| 4 | — | — | 308,910 | IJsland | Atlantic/Reykjavik |
| 421 | Keflavík | Suðurnes | — | IJsland | Atlantic/Reykjavik |
| 462 | Akureyri | Norðurland eystra | 17,693 | IJsland | Atlantic/Reykjavik |
| 5 | Reykjavik | Höfuðborgarsvæðið | 118,918 | IJsland | Atlantic/Reykjavik |
| 551 | Reykjavik | Höfuðborgarsvæðið | 118,918 | IJsland | Atlantic/Reykjavik |
| 552 | Reykjavik | Höfuðborgarsvæðið | 118,918 | IJsland | Atlantic/Reykjavik |
| 561 | Reykjavik | Höfuðborgarsvæðið | 118,918 | IJsland | Atlantic/Reykjavik |
| 562 | Reykjavik | Höfuðborgarsvæðið | 118,918 | IJsland | Atlantic/Reykjavik |
| 6 | — | — | 308,910 | IJsland | Atlantic/Reykjavik |
| 7 | — | — | 308,910 | IJsland | Atlantic/Reykjavik |
| 8 | — | — | 308,910 | IJsland | Atlantic/Reykjavik |