The Area Codes of Indonesia:
| City/Town or Region | Area code | |
|---|---|---|
| 1. | Kaimana, Fak Fak | 0956 (+62956) |
| 2. | Kampar, Rokan Hulu | 0762 (+62762) |
| 3. | Kangean | 0327 (+62327) |
| 4. | Kapuas Hulu | 0567 (+62567) |
| 5. | Kapuas, Pulang Pisau | 0513 (+62513) |
| 6. | Karangasem | 0363 (+62363) |
| 7. | Karawang | 0267 (+62267) |
| 8. | Karimun Jawa | 0297 (+62297) |
| 9. | Karo, Deli Serdang (Bandar Baru, Sibolangit) | 0628 (+62628) |
| 10. | Kayong Utara | 0535 (+62535) |
| 11. | Kebumen | 0287 (+62287) |
| 12. | Kediri | 0354 (+62354) |
| 13. | Kendal | 0294 (+62294) |
| 14. | Kendari | 0401 (+62401) |
| 15. | Kerinci | 0748 (+62748) |
| 16. | Ketapang | 0534 (+62534) |
| 17. | Klaten | 0272 (+62272) |
| 18. | Klungkung, Bangli | 0366 (+62366) |
| 19. | Kolaka | 0405 (+62405) |
| 20. | Konawe | 0408 (+62408) |
| 21. | Kotabaru, Tanah Bumbu | 0518 (+62518) |
| 22. | Kuantan Singingi | 0760 (+62760) |
| 23. | Kudus | 0291 (+62291) |
| 24. | Kundur | 0779 (+62779) |
| 25. | Kuningan | 0232 (+62232) |
| 26. | Kupang | 0380 (+62380) |