The Area Codes of Indonesia:
| City/Town or Region | Area code |
| 1. | Sabang | 0652 (+62652) |
| 2. | Salatiga | 0298 (+62298) |
| 3. | Samarinda, Kutai Kartanegara | 0541 (+62541) |
| 4. | Sambas, Bengkayang, Singkawang | 0562 (+62562) |
| 5. | Samosir | 0626 (+62626) |
| 6. | Sampang | 0323 (+62323) |
| 7. | Sanggau, Sekadau | 0564 (+62564) |
| 8. | Sangihe Islands | 0432 (+62432) |
| 9. | Sarmi | 0966 (+62966) |
| 10. | Sarolangun | 0745 (+62745) |
| 11. | Saumlaki | 0918 (+62918) |
| 12. | Sawahlunto, Sijunjung, Dharmasraya | 0754 (+62754) |
| 13. | Selayar Islands | 0414 (+62414) |
| 14. | Semarang | 024 (+6224) |
| 15. | Serui | 0963 (+62963) |
| 16. | Seruyan, Kotawaringin | 0539 (+62539) |
| 17. | Siak | 0764 (+62764) |
| 18. | Sikka | 0382 (+62382) |
| 19. | Simeulue | 0650 (+62650) |
| 20. | Singkil | 0658 (+62658) |
| 21. | Sinjai | 0482 (+62482) |
| 22. | Sintang | 0565 (+62565) |
| 23. | Situbondo | 0338 (+62338) |
| 24. | Solo, Sragen, Karanganyar, Sukoharjo | 0271 (+62271) |
| 25. | Solok, South Solok | 0755 (+62755) |
| 26. | Soppeng | 0484 (+62484) |
| 27. | Sorong | 0951 (+62951) |
| 28. | South Aceh | 0656 (+62656) |
| 29. | South Aceh | 0657 (+62657) |
| 30. | South Barito, East Barito | 0526 (+62526) |
| 31. | South Bengkulu, Kaur | 0739 (+62739) |
| 32. | South Lampung | 0727 (+62727) |
| 33. | South Minahasa | 0430 (+62430) |
| 34. | South Nias | 0630 (+62630) |
| 35. | South Pesisir | 0756 (+62756) |
| 36. | South Pesisir | 0757 (+62757) |
| 37. | South Tapanuli | 0635 (+62635) |
| 38. | South Tapanuli, Padang Sidempuan | 0634 (+62634) |
| 39. | Southeast Aceh | 0629 (+62629) |
| 40. | Southwest Aceh | 0659 (+62659) |
| 41. | Subang | 0260 (+62260) |
| 42. | Subulussalam | 0627 (+62627) |
| 43. | Sukabumi | 0266 (+62266) |
| 44. | Sumba | 0387 (+62387) |
| 45. | Sumbawa | 0371 (+62371) |
| 46. | Sumedang | 0261 (+62261) |
| 47. | Sumenep | 0328 (+62328) |
| 48. | Surabaya, Gresik, Sidoarjo, Bangkalan | 031 (+6231) |