Ringflow
Live carrier coverage · Cambodia

Cambodia (+855) code overview.

The +855 prefix connects one of Southeast Asia's fastest-developing economies — from Phnom Penh's garment and finance sectors to Siem Reap's tourism economy. Here's the verified Cambodia country code, ISO references, live local time, and Ringflow's direct Cambodian routes.

MPTC-aligned routesTwo-digit area codesSub-second call setup
Calling
LIVE
Cambodia
KH · KHM · Zone 8
+855
Live route
Phnom Penh
Time
--:--
Alpha-2
KH
Alpha-3
KHM
HD voice signal98%
Ringflow direct routeVerified
Cambodia snapshot

Cambodia at a glance.

The geography, area codes and ICT time zone you need before placing your first call into Cambodia.

Cambodia country information

Cambodia
Asia
+855
Capital
Phnom Penh
Region
Asia
Time zone
Asia/Phnom_Penh
Numbering zone
Zone 8
Code length
3 digits
ISO 3166 codes
KH · KHM
Ways to reach Cambodia

Every route into Cambodian lines.

Landline, calling card or business VoIP — the +855 prefix reaches Phnom Penh and all 25 provinces. Pick what fits your traffic.

01Classic

Direct calls using landlines & mobile phones

Dial Cambodia directly from any landline or mobile by entering your international exit code, then the country code +855, and finally the local number.

02Pre-paid

International calling cards for Cambodia

Pre-paid international calling cards remain a convenient, low-cost way to reach Cambodia. Each card gives you a PIN and an access number to place global calls.

03Modern

VoIP services for contacting Cambodia

VoIP apps like Skype, WhatsApp and Viber — and business VoIP from Ringflow — route calls to Cambodia over the internet, usually at far lower rates than traditional carriers.

Cambodia profile

What shapes Cambodian voice traffic, Mekong to coast.

The fundamentals behind calls to and from Cambodia — the +855 code, Phnom Penh, the single ICT zone and the area-code plan.

Capital
Phnom Penh
Region
Asia
Time zone
Asia/Phnom_Penh
Numbering zone
Zone 8
Code length
3 digits
ISO 3166 codes
KH · KHM
Dialing Cambodia

How to call Cambodia.

A Cambodian number is built from four parts. Here's the anatomy and dialling order, including the leading-zero rule.

Number anatomy

Exit prefix++Country code855+Area / mobileXX+Subscriber numberXXX XXX
Final dialled number
+855 XX XXX XXX
Valid E.164
Format follows ITU-T Recommendation E.164 — the international public telecommunication numbering plan.
01Step 1 of 4

Start with the exit prefix

Press + on a mobile (hold the 0 key), or dial 00 from most countries / 011 from North America.

02Step 2 of 4

Add the Cambodia code

Dial +855. This identifies Cambodia on the global telephone network.

03Step 3 of 4

Enter the area or mobile prefix

Type the first part of the local number. Drop the leading 0 if there is one.

04Step 4 of 4

Finish with the subscriber number

The remaining digits route the call to the specific line in Phnom Penh or elsewhere.

Need an inbound Cambodia number?
Ringflow provisions +855 DIDs and termination through direct carrier interconnects — live in minutes, no contracts.
Global directory

Browse the full country code index.

Search by country name, ISO code or dial prefix. Click any country for its dialing rules and Ringflow's local number availability.

FAQ

Calling Cambodia, answered.

What businesses and travellers ask most before dialling Cambodia on +855.

Cambodia's country calling code is +855. Always dial it before the national number when calling from outside Cambodia.
Dial your international access prefix (+ on mobile, or 00 / 011 from a landline), then 855, then the Cambodia number (drop the leading 0 if it has one).
Cambodia uses ISO 3166-1 alpha-2 code KH and alpha-3 code KHM.
Cambodia is part of the Asia region.
Ringflow provisions inbound DIDs and outbound termination across 120+ countries through 500+ direct carrier interconnects. Contact our wholesale team to confirm live coverage and rates for Cambodia.

Connect to Cambodia on carrier-grade Southeast Asian routes.

Free trial · No card required · Port numbers free · Month-to-month