Your complete guide to dialling Cambodia from Phnom Penh to anywhere in the world — verified +855 country code, Asia/Phnom_Penh time zone, Asia region, ISO references, live local time and weather, plus a step-by-step walkthrough.
Calling
Cambodia
+855
Phnom Penh
Weather
HD voice signal
Alpha-2
KH
Alpha-3
KHM
Cambodia
KH
2 Digit ISO
+855
Country Calling Code
KHM
3 Digit ISO
Capital
Phnom Penh
Time zone
Asia/Phnom_Penh
Weather · Phnom Penh
Humidity
Wind
Cambodia
+855
Capital
Phnom Penh
Region
Asia
Time zone
Asia/Phnom_Penh
Coordinates
12.57°, 104.99°
Numbering zone
Zone 8
Code length
3 digits
Several routes connect you to Cambodia (+855) landlines, calling cards and modern VoIP services. Pick the one that fits your call volume and budget.
Dial your exit code (00 from most countries, or 011 from North America), enter +855, then the local Cambodia number — dropping any leading 0. Cambodia's 3-digit country code puts it in ITU Zone 8 of the global E.164 numbering plan.
Cambodia uses a 3-digit country code (Zone 8). Check that the card lists +855 rates explicitly — mobile numbers in Cambodia often carry a different per-minute charge than landlines. Factor in the Asia/Phnom_Penh time zone when planning the call.
Apps like Skype, WhatsApp and Viber, and business VoIP from TKOS are the cheapest route to Cambodia (+855) — calls to Cambodia (Asia/Phnom_Penh) travel across trans-Pacific or Indian Ocean fibre — a solid broadband or 4G connection keeps latency below 180 ms.
The cost of calling Cambodia varies depending on the method and service provider you choose. Compare landline, VoIP and calling-card routes side by side.
VoIP · overview
Cheapest route to Cambodia — internet-based.
Choose TKOS for business-grade calls to Cambodia, or consumer apps like Skype, WhatsApp or Viber for casual chats.
Sign up with an email or phone number, then verify your identity if required.
App-to-app calls are usually free; calls to mobile/landline numbers need a small balance or a subscription plan.
Enter +855 followed by the Cambodia subscriber number (drop any leading 0).
VoIP works on phones, laptops, tablets and desk phones wherever you have internet.
If audio drops, try switching from cellular to Wi-Fi or move closer to your router.
Capital
Phnom Penh
Population
16.77M
Area
181,035 km²
GDP (USD)
$30.00B
Currency
Cambodian Riel (KHR)
Languages
Khmer
Emergency number
117 / 118 / 119
Internet TLD
.kh
Drive side
Right-hand traffic
Latitude / Longitude
12.57°N / 104.99°E
Time zone
Asia/Phnom_Penh
ISO 3166 codes
KH · KHM
A complete international number is built from four parts. Here's the anatomy and the dialling order.
Number anatomy
Format follows ITU-T Recommendation E.164 the international public telecommunication numbering plan.
Press + on a mobile (hold the 0 key), or dial 00 from most countries / 011 from North America.
Dial +855. This identifies Cambodia on the global telephone network.
Type the first part of the local number. Drop the leading 0 if there is one.
The remaining digits route the call to the specific line in Phnom Penh or elsewhere.
Need an inbound Cambodia number?
TKOS provisions +855 DIDs and termination through direct carrier interconnects.
Whether you're reaching Cambodia for business or family, three habits keep every conversation crystal clear and a clean route from TKOS handles the rest.
East Asian routes to Cambodia support G.722 wideband — an HD-compatible headset delivers noticeably clearer voice on these high-traffic transoceanic links.
Trans-Pacific and Indian Ocean routes to Cambodia run 120–180ms round-trip — wired ethernet keeps packet loss below 0.1% where Wi-Fi adds jitter spikes on these longer paths.
Schedule Cambodia calls during Phnom Penh business hours — 09:00–17:00 Asia/Phnom_Penh — your contact will be at their desk in a quiet space rather than taking the call on the move.
Built on top of every Cambodia (+855) route quality, price, and people you can reach.
TKOS routes Cambodia calls over trans-Pacific fibre to Phnom Penh. Direct interconnects keep jitter under 5ms and MOS scores above 4.3.
East Asian fibre corridors give Cambodia competitive termination costs — TKOS passes that volume pricing to you. Transparent per-minute rates for Cambodia (+855), no hidden fees.
Your account manager covers Asia/Phnom_Penh hours for Cambodia. Phone, email, and live chat — always online for Phnom Penh routes, day or night.
Provider report
TKOS
Overall
A+
Score
9.6/ 10
Coverage
A+Direct routes to Cambodia
Reliability
A+99.99% uptime SLA
Support
A24/7 live agents
Pricing
ATransparent per-minute
Audit scope
Cambodia +855
When selecting an international calling service for Cambodia, four factors separate the durable providers from the noise. Look for a proven track record on each.
Trans-Pacific routes to Cambodia vary — verify direct Phnom Penh interconnects, not East Asian hub routing.
Trans-Pacific fibre cuts happen — require redundant cable paths and a sub-1-hour failover SLA for Cambodia.
Confirm coverage for Asia/Phnom_Penh hours — a Phnom Penh route issue at 09:00 needs a human response, not a next-day ticket.
East Asian rates vary per city — request a full rate deck for Phnom Penh and every city you'll dial.
Special-rate prefixes and the major city area codes inside Cambodia (+855).
| City | Dial codes |
|---|---|
| Banteay Meanchey | +855-54 |
| Battambang | +855-53 |
| Kampong Cham | +855-42 |
| Kampong Chhnang | +855-26 |
| Kampong Speu | +855-25 |
| Kampong Thom | +855-62 |
| Kampot | +855-33 |
| Kandal | +855-24 |
| Kep | +855-36 |
| Koh Kong | +855-35 |
| Kratie | +855-72 |
| Mobile Phones - CAMGSM | +855-12 |
| Mobile Phones - CAMSHIN | +855-11 |
| Mobile Phones - CAMTEL AMPS | +855-18 |
| Mobile Phones - CASACOM | +855-15 – 16 |
| Mondolkiri | +855-73 |
| Pailin | +855-55 |
| Phnom Penh | +855-23 |
| Preah Vihear | +855-64 |
| Prey Veng | +855-43 |
| Pursat | +855-52 |
| Ratanakiri | +855-75 |
| Siem Reap | +855-63 |
| Sihanoukville | +855-34 |
| Stung Treng | +855-74 |
| Svay Rieng | +855-44 |
| Takeo | +855-32 |
| Udar Meanchey | +855-65 |
Everything a business or traveller needs to know before dialling Cambodia (+855). Can't find an answer? Our team is one click away.
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