Cambodia country code +855 — call Cambodia & get a number.
Everything you need to dial Cambodia correctly — country code +855, area codes by province, and a mobile numbering system where the prefix tells you the carrier, not the region. Plus the time zone detail that makes scheduling with Cambodia simple year-round. Get a local Cambodia number for your business in minutes.
- 17,500+ Businesses
- 99.99% Uptime SLA
- 190+ Countries
- 4.8/5 on G2
Cambodia at a glance
The numbers and facts you need before you dial.
What is the country code for Cambodia?
Cambodia's country code, +855, covers a country whose telephone numbering plan splits cleanly into two logics: landline numbers use geographic area codes (23 for Phnom Penh, 24 for Kandal, and separate codes for each other province), while mobile numbers use carrier-identifying prefixes instead of a regional code. That second point is the detail most useful to know — a Cambodian mobile number's first two digits tell you which network issued it (Smart, Cellcard, or Metfone) rather than which province the subscriber lives in.
That carrier-based mobile numbering, combined with Cambodia's genuinely widespread use of both the Cambodian Riel and the US Dollar in everyday commerce, makes Cambodia's telecom and payments landscape distinct from many of its Southeast Asian neighbors.
Code +855 was assigned to Cambodia by the ITU under the E.164 plan. The “+” means “dial your local international exit code”; on a mobile, press and hold 0 to type it.
All four mean the same thing — they connect your call to Cambodia.
How to call Cambodia from anywhere
Calling Cambodia from abroad: +855 XX XXX XXXX (mobile, using a carrier prefix) or +855 23 XXX XXX (Phnom Penh landline).
Calling within Cambodia (local call): dial the local number directly within the same province. Calling within Cambodia (different province, or any mobile number): dial 0 + the area/carrier code + the local number.
Calling out from Cambodia: dial the appropriate international access prefix (Cambodia has historically used multiple carrier-specific codes such as 001 or 007 for different call-quality tiers — verify the current standard before publishing) + country code + local number.
Full example: +855 23 XXX XXXX — drop the local leading 0 when calling from abroad.
Cambodia phone number format explained
Cambodia phone numbers generally follow this structure: +855 (0)23 XXX XXX (Phnom Penh landline) or +855 (0)XX XXX XXXX (mobile). Country code 855; landline area codes 23 (Phnom Penh), 24 (Kandal), 25 (Kampong Speu), 26 (Kampong Chhnang), 32 (Takeo), 33 (Kampot), 34 (Sihanoukville), and others by province; mobile carrier prefixes two-digit codes such as 10, 15, 16, 69, 70 (Smart), 11, 12, 14, 17, 61 (Cellcard), 31, 60, 66, 67, 68 (Metfone), among others; subscriber number 6–7 digits following the area or carrier code.
The domestic trunk 0 is dropped when dialing from outside Cambodia using +855.
Landline
+855-23-XXX-XXX (Phnom Penh); +855-24-XXX-XXX (Kandal) and other province codes
Mobile
+855-XX-XXX-XXXX (carrier-identifying two-digit prefix: Smart, Cellcard, or Metfone)
Cambodia area codes — major cities
Drop the local leading 0 when calling from abroad.
| City | Region | Area code |
|---|---|---|
| Phnom Penh (capital) | Phnom Penh | 23 |
| Ta Khmau | Kandal | 24 |
| Chbar Mon | Kampong Speu | 25 |
| Kampong Chhnang | Kampong Chhnang | 26 |
| Doun Kaev | Takeo | 32 |
| Kampot | Kampot | 33 |
| Sihanoukville | Preah Sihanouk | 34 |
Cambodia mobile network prefixes
The prefix after +855 tells you which network issued the SIM — though number portability means it no longer guarantees the operator.
Smart Axiata (Smart)
Cellcard (CamGSM)
Metfone
CooTel
Cambodia time zone
Cambodia sits in Indochina Time (ICT), UTC+7, year-round.
Cambodia does not observe daylight saving time — the UTC+7 offset holds constant all year, matching Thailand, Laos, and Vietnam. Once you've confirmed the offset against your own city, it stays correct indefinitely, with the only variable being whether your own city shifts its own clock seasonally.
Why this matters for business: if you're coordinating call center hours, IVR schedules, or SLA windows against Cambodia, the math you calculate once remains valid — Cambodia's side of the equation never changes.
Emergency numbers in Cambodia
Free to call from any Cambodia phone, landline or mobile.
Common mistakes when calling Cambodia
Almost every failed international call is a formatting issue, not a network issue.
Assuming a mobile prefix indicates a geographic region
Unlike landline area codes, mobile prefixes in Cambodia identify the carrier (Smart, Cellcard, Metfone), not a province.
Assuming only one currency is relevant for pricing or invoicing
Cambodia's dual riel/USD economy means customer-facing materials may need to handle both currencies.
Forgetting the domestic trunk 0 when dialing from abroad
The leading 0 in an area or carrier code is dropped when dialing +855 from outside the country.
Assuming uniform network coverage nationwide
Coverage is strong around Phnom Penh and Siem Reap but can be thinner in remote rural and border regions.
Tips to reduce the cost of calling Cambodia
Use the mobile prefix to identify the carrier instantly
10, 15, 16, 69, 70 belong to Smart; 11, 12, 14, 17, 61 to Cellcard; 31, 60, 66, 67, 68 to Metfone — no province lookup needed for mobile numbers.
Set IVR hours against Indochina Time — no DST adjustment ever needed
Cambodia holds a constant UTC+7 offset year-round, so once you configure business hours correctly, you never need to re-check them each season.
Route calls through VoIP or an MCM virtual number rather than paying carrier international rates into +855.
Plan pricing and support in both riel and USD
with USD widely used and accepted alongside the riel, customer-facing pricing pages, invoices, and support scripts may need to handle both currencies fluently.
Why businesses get a Cambodia virtual number
Cambodia stands out among its Southeast Asian neighbors in two related ways that shape how a phone number and payments actually work day-to-day. First, the numbering system itself: rather than mobile numbers being assigned by geographic area code (the way landlines are), each mobile carrier owns its own block of prefixes — Smart, Cellcard, and Metfone customers can be told apart from their number alone, before ever dialing. This is a more carrier-centric numbering approach than found in many neighboring countries.
Second, and just as distinctive: Cambodia runs on a genuinely dual currency system, where the Cambodian Riel and the US Dollar circulate together in everyday commerce — it's common to pay in dollars and receive riel as change, and larger transactions (including many business-to-business dealings) are frequently quoted in USD outright. For a business considering a Cambodia virtual number, this matters beyond just telecom trivia: pricing pages, invoices, and customer support scripts serving Cambodian customers may need to handle both currencies fluently, not just one.
Higher answer rates
Local caller IDs are answered far more often than unfamiliar international numbers.
Lower trust friction
A local number signals legitimate presence without a physical office.
Cheaper inbound
Customers call at local rates — no one rejects your calls for cost.
Centralized routing
Calls forward to your existing call center, mobile, or SIP platform — handled from anywhere.
Faster expansion
Launch a local line in a day instead of incorporating a local entity.
Real PSTN presence
A genuine local DID that rings on your phone system worldwide.
Cambodia virtual numbers with My Country Mobile
My Country Mobile makes it simple to get a working Cambodia +855 virtual number without setting up local infrastructure — provision a number, route it to your existing team or IVR anywhere in the world, and manage call handling on Cambodia's stable, DST-free Indochina Time schedule. Trusted by 17,500+ businesses, backed by a 99.99% uptime SLA, live across 190+ countries, and rated ★4.8/5 on G2 — MCM gives you a local Cambodian presence with global-grade infrastructure behind it.
Local DIDs in major area codes — provisioned in minutes
Call forwarding to any mobile, landline, SIP endpoint, or softphone worldwide
HD voice with G.711, G.729, Opus & AMR-WB — auto-negotiated per call
Sub-150ms latency on major voice corridors via distributed PoPs
99.99% uptime SLA backed by geo-redundant infrastructure & sub-2s failover
WebRTC support for browser-based calling without softphone installs
REST APIs for provisioning, routing & call detail records (CDRs)
Built-in fraud protection with AI anomaly detection & STIR/SHAKEN
24/7 network monitoring and dedicated support
How to get your Cambodia virtual number
Most businesses are live within hours, not days.
Choose your Cambodia number type — select a +855 local virtual number suited to your use case: tourism and hospitality support, customer service, or a dedicated line for a specific department.
Set up call routing — point the number to your existing phone system, softphone, or contact center; no need for a physical office in Cambodia.
Configure business hours correctly — set your IVR and availability windows against Indochina Time (UTC+7), no DST adjustment ever needed.
Go live — start receiving and making calls under your new Cambodia number within minutes, with support for scaling to other Southeast Asian markets as you grow.
Other country dialing guides
More country codes worth bookmarking.
Get a Cambodia virtual number with MCM
Sound local in Phnom Penh from anywhere — start your free trial and claim a +855 Cambodia number today.
Cambodia +855 — FAQ
What is the country code for Cambodia?expand_more
Cambodia uses country code +855.
How do mobile number prefixes work in Cambodia?expand_more
Unlike landline area codes, mobile prefixes in Cambodia identify the carrier — for example, prefixes like 10, 15, or 16 belong to Smart, while others belong to Cellcard or Metfone, rather than indicating a geographic province.
Does Cambodia observe Daylight Saving Time?expand_more
No. Cambodia stays on Indochina Time (ICT), UTC+7, year-round with no seasonal clock changes.
How do I call Cambodia from abroad?expand_more
Dial your exit code (or +), then 855, then the area or carrier code with the leading 0 dropped, then the local number — e.g., +855 23 XXX XXX for a Phnom Penh landline.
What is the capital of Cambodia?expand_more
Phnom Penh, which also uses landline area code 23.
Who are the main mobile network operators in Cambodia?expand_more
Smart Axiata, Cellcard, and Metfone are the primary operators, regulated by the Telecommunication Regulator of Cambodia (TRC).
What currency is used in Cambodia?expand_more
The Cambodian Riel (KHR) is the official currency, but the US Dollar is also very widely used in everyday transactions — a genuinely dual-currency economy.
What is the emergency number in Cambodia?expand_more
Commonly cited numbers are 117 (police), 118 (fire), and 119 (ambulance) — verify current numbers locally.
Can I get a virtual Cambodia phone number without living there?expand_more
Yes. Providers like MCM let you provision a +855 virtual number and route calls to any location worldwide — useful for businesses serving Cambodian customers, tourism operators around Angkor Wat and Siem Reap, or NGOs without a physical office in the country.
Why is Cambodia's mobile numbering system considered distinctive?expand_more
Because mobile prefixes are assigned by carrier rather than by geographic region, a Cambodian mobile number tells you which network issued it just from its first digits — a more carrier-centric approach than in many neighboring countries.