| Country | Town/City | Telephone code |
| Cambodia | Banteay Meanchey | +855 54 |
| Cambodia | Battambang | +855 53 |
| Cambodia | Kampong Cham | +855 42 |
| Cambodia | Kampong Chhnang | +855 26 |
| Cambodia | Kampong Speu | +855 25 |
| Cambodia | Kampong Thom | +855 62 |
| Cambodia | Kampot | +855 33 |
| Cambodia | Kandal | +855 24 |
| Cambodia | Kep | +855 36 |
| Cambodia | Koh Kong | +855 35 |
| Cambodia | Kratie | +855 72 |
| Cambodia | Mobile Phones | +855 12 |
| Cambodia | Mondolkiri | +855 73 |
| Cambodia | Pailin | +855 55 |
| Cambodia | Phnom Penh | +855 23 |
| Cambodia | Preah Vihear | +855 64 |
| Cambodia | Prey Veng | +855 43 |
| Cambodia | Pursat | +855 52 |
| Cambodia | Ratanakiri | +855 75 |
| Cambodia | Siem Reap | +855 63 |
| Cambodia | Siem Riep | +855 63 |
| Cambodia | Sihanoukville | +855 34 |
| Cambodia | Stung Treng | +855 74 |
| Cambodia | Svay Rieng | +855 44 |
| Cambodia | Takeo | +855 32 |
| Cambodia | Udar Meanchey | +855 65 |
