855 Country Code: Cambodia (+855)
Country code 855 (+855) belongs to Cambodia. Cambodia uses the international dialing code +855, assigned by the International Telecommunication Union (ITU) under the E.164 standard. The ISO 3166-1 alpha-2 code is KH.
You will see the same code written several ways depending on origin: +855 (universal + prefix, works from mobile), 00855 (from countries that use 00 as their international exit code — most of Europe, Asia, and Latin America), 011 855 (from the US and Canada), 0011 855 (from Australia), or the bare 855. All refer to the same Cambodia country code. Note: 855 is not a US area code — US area codes are also 3 digits but +855 is the international dialing code for Cambodia, not a domestic US destination.
Below you will find the number format, trunk prefix, major city area codes, and dialing facts specific to Cambodia (+855).
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Did You Get a Call from +855? Here's What That Means
Any incoming call that displays +855 followed by more digits is originating from Cambodia. The caller is dialing you from a Cambodia-registered phone number — either a landline or a mobile on a Cambodia carrier.
Common reasons people receive calls from +855:
- -Family or friends in Cambodia calling from a local number
- -Business contacts at Cambodia-based companies
- -Customer support agents working from a Cambodia call center
- -Travel-related calls (hotels, airlines, tour operators)
- -Less commonly, robocalls or scam calls that have spoofed a +855 number — if the call is unsolicited, do not return it without verifying the source
To return a call to a +855 number from the US, use Kinvo's Cambodia dialing guide — calls cost from $0.37/min with no app to download.
Cambodia Phone Number Format
International Format Example
Domestic vs International
Drop 0 and prepend +855.
Calling Cambodia Successfully: Common Mistakes & Best Practices
Most failed calls to Cambodia come from one of four mistakes, not from network problems. The most common is mishandling the leading 0: domestically, Cambodia numbers are written with 0 at the front (e.g. 012345678), but that 0 is the domestic trunk prefix and must be removed when calling from outside Cambodia. Dial +855 followed directly by the local number without the 0.
The second is misreading the area code on landline numbers — Cambodia numbers may have variable formatting depending on the carrier and city, so confirm the area code with the recipient before dialing. The third is dialing during off-hours — Cambodia uses local business hours and consumer phones are usually answered between 8 AM and 9 PM local time. The fourth and most expensive mistake is assuming your US carrier's WiFi calling feature makes the call cheap. It does not — see WiFi calling vs VoIP for international calls for why.
For scam-call awareness: +855 is the legitimate Cambodia country code, and most unsolicited calls from +855 numbers are legitimate calls from Cambodia-based businesses, hospitals, family members, or call centers serving US customers. Caller-ID spoofing exists, so if a call from a +855 number claims to be from a US government agency, your bank, or the IRS, hang up and call the agency back on its published number. Real authorities never demand payment over the phone.
When you are ready to place a call, the cheapest reliable route is to dial +855 from your browser using Kinvo — no app, no carrier add-on, and the per-minute rate is shown before you connect so there are no bill surprises. The browser approach also works from any laptop, tablet, or phone you happen to have access to, which matters when you're traveling, using a work device, or borrowing someone else's computer.
Calling Cambodia from Your Browser
To place a call to Cambodia, dial +855 followed by the local number in the Kinvo browser dialer. Pay-as-you-go, no app required.
Call Cambodia from Your Browser
Call any Cambodia number (+855) directly from Chrome, Firefox, Safari, or Edge. No install required. Use it in under 2 minutes.
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Frequently Asked Questions: Cambodia Country Code
Which country is country code 855?
Country code 855 belongs to Cambodia. The full international dialing code is +855, also written as 00855 from countries using 00 as their international exit code (Europe, most of Asia, Latin America), 011 855 from the US and Canada, or +855 from any mobile phone.
What is the country code for Cambodia?
+855 is the international dialing code for Cambodia, assigned by the ITU under E.164. The ISO 3166-1 alpha-2 code is KH. Equivalent forms — 00855, 011 855, +855, and 855 — all refer to the same Cambodia country code.
Is 855 a US area code?
No. 855 is the international country code for Cambodia, not a US area code. US area codes are also 3 digits but they are domestic North American Numbering Plan codes — to reach Cambodia from the US, dial +855 or 011 855 followed by the local number.
Do I drop the 0 when calling Cambodia from abroad?
Yes. Cambodia uses 0 as its domestic trunk prefix. When dialing from another country, remove it and replace with +855. The trunk prefix is only needed for long-distance calls within Cambodia.
Can I call Cambodia from my browser?
Yes. Kinvo connects calls to Cambodia via WebRTC directly from Chrome, Firefox, Safari, or Edge. No app download. Sign up, add credits from $5, and dial +855 followed by the local number.