Area Codes sa Tonga
| Area Code▲ | Lungsod↕ | Namamahalang Rehiyon↕ | Populasyon ng Siyudad↕ | Bansa/Rehiyon | Oras ng Dako |
|---|---|---|---|---|---|
| 20 | Nukualofa | Tongatapu | 22,400 | Tonga | Pacific/Tongatapu |
| 21 | Nukualofa | Tongatapu | 22,400 | Tonga | Pacific/Tongatapu |
| 22 | Nukualofa | Tongatapu | 22,400 | Tonga | Pacific/Tongatapu |
| 23 | Nukualofa | Tongatapu | 22,400 | Tonga | Pacific/Tongatapu |
| 24 | Nukualofa | Tongatapu | 22,400 | Tonga | Pacific/Tongatapu |
| 25 | Nukualofa | Tongatapu | 22,400 | Tonga | Pacific/Tongatapu |
| 26 | Nukualofa | Tongatapu | 22,400 | Tonga | Pacific/Tongatapu |
| 27 | Nukualofa | Tongatapu | 22,400 | Tonga | Pacific/Tongatapu |
| 28 | Nukualofa | Tongatapu | 22,400 | Tonga | Pacific/Tongatapu |
| 29 | — | — | 122,580 | Tonga | Pacific/Tongatapu |
| 30 | — | — | 122,580 | Tonga | Pacific/Tongatapu |
| 31 | — | — | 122,580 | Tonga | Pacific/Tongatapu |
| 32 | — | — | 122,580 | Tonga | Pacific/Tongatapu |
| 33 | Kolonga | Tongatapu | — | Tonga | Pacific/Tongatapu |
| 34 | Kolonga | Tongatapu | — | Tonga | Pacific/Tongatapu |
| 35 | — | — | 122,580 | Tonga | Pacific/Tongatapu |
| 36 | — | — | 122,580 | Tonga | Pacific/Tongatapu |
| 37 | Vaini | Tongatapu | 2,976 | Tonga | Pacific/Tongatapu |
| 38 | Vaini | Tongatapu | 2,976 | Tonga | Pacific/Tongatapu |
| 41 | — | — | 122,580 | Tonga | Pacific/Tongatapu |
| 42 | — | — | 122,580 | Tonga | Pacific/Tongatapu |
| 43 | — | — | 122,580 | Tonga | Pacific/Tongatapu |
| 44 | — | — | 122,580 | Tonga | Pacific/Tongatapu |
| 50 | — | — | 122,580 | Tonga | Pacific/Tongatapu |
| 60 | — | — | 122,580 | Tonga | Pacific/Tongatapu |
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