The Area Codes of Indonesia:
| City/Town or Region | Area code | |
|---|---|---|
| 1. | Tabalong, Balangan | 0526 (+62526) |
| 2. | Tabanan (Baturiti, Bedugul) | 0368 (+62368) |
| 3. | Takalar | 0418 (+62418) |
| 4. | Tana Toraja | 0423 (+62423) |
| 5. | Tanah Laut | 0512 (+62512) |
| 6. | Tanah Merah (Boven Digoel) | 0975 (+62975) |
| 7. | Tangerang, South Tangerang | 021 (+6221) |
| 8. | Tanggamus | 0722 (+62722) |
| 9. | Tanjungpinang, Bintan | 0771 (+62771) |
| 10. | Tarakan, Bunyu Island | 0551 (+62551) |
| 11. | Tebingtinggi, Serdang Bedagai | 0621 (+62621) |
| 12. | Tebo | 0744 (+62744) |
| 13. | Tegal, Brebes | 0283 (+62283) |
| 14. | Tembagapura | 0979 (+62979) |
| 15. | Ternate | 0921 (+62921) |
| 16. | Tidore | 0929 (+62929) |
| 17. | Timika | 0901 (+62901) |
| 18. | Toba Samosir | 0632 (+62632) |
| 19. | Tobelo | 0924 (+62924) |
| 20. | Tojo Una-una | 0464 (+62464) |
| 21. | Toli-Toli | 0453 (+62453) |
| 22. | Tual | 0916 (+62916) |
| 23. | Tuban | 0356 (+62356) |
| 24. | Tulang Bawang | 0726 (+62726) |
| 25. | Tulungagung, Trenggalek | 0355 (+62355) |