+855 explained
The Cambodia country code, 855, is what you dial before a Cambodia number when you call from abroad. It is also known as the Cambodia dialing code, Cambodia calling code, or Cambodia phone code. In the Cambodia phone number format, +855 comes first, then the area code and the local number.
- Country code
- +855
- The 00855 country code is the same number
- ISO country codes
- KH, KHM
- Use the KH country code or the KHM country code on forms and passports. To call Cambodia, dial +855
- Used in
- Cambodia
- No other country or territory dials +855
- Exit code
- 00
- From most countries. Also 011 from United States and Canada, 0011 from Australia, and + from any mobile
- Trunk prefix
- 0
- Drop it after +855
- Number length
- 8, 9, or 10 digits
- After +855
- Time now in Cambodia
- Cambodia mobile number format
- 091 234 567
- From abroad: +855 91 234 567
- Cambodia landline number format
- 023 756 789
- From abroad: +855 23 756 789
Cambodia phone number types
The first digits of a Cambodia number tell you what kind of number it is: a landline, a mobile, a free number, or one that costs more to call. Here is a sample of each type of Cambodia phone number, as dialed inside Cambodia and from abroad.
Good to know before you call Cambodia
“អាឡូ”
ʼaalou
It sounds like hello. Cambodians say it only when they pick up the phone
Reply
“អាឡូ”
ʼaalou
Most Cambodian mobile numbers have 8 digits, but some operators now issue 9-digit numbers.
Wikipedia: Telephone numbers in CambodiaCambodia has no single exit code. Calls abroad start with 00, but the third digit picks 1 of 3 gateway operators.
Wikipedia: Telephone numbers in CambodiaCambodia has 6 telecom operators, but Metfone, Cellcard, and Smart alone carry 90% of the country's phone users.
Wikipedia: Communications in Cambodia
What it costs to call Cambodia (using Suparelay)
Landline from $0.23/minMobile from $0.31/min
Only 63 of 220 countries cost less to call than Cambodia.
Enter a numberEach bar counts the countries at that price
Want to call Cambodia?
Call any phone from this tab. Nothing to install on either side, and you pay cents a minute.
Why a call to Cambodia fails
You call from: 🇺🇸 United States
The 0 is still in the number
A Cambodian number starts with 0 inside Cambodia. From abroad, leave it out: +855 takes its place.
- Connects
- 011 855 23 756 789
- Does not connect
- 011 855 023 756 789
The exit code is wrong for your country
00 works from Europe and most of the world. From the US and Canada, dial 011 before +855 instead.
- Connects
- 011 855 23 756 789
- Does not connect
- 00 855 23 756 789
Questions about +855
Which country is +855?
+855, or country code 855, belongs to Cambodia. No other country uses this code.
What is +855?
+855 is the part you dial before a Cambodian number when you call from outside Cambodia. It replaces the first 0 of the number.
What is the difference between +855 and 00855?
The + stands for your own exit code. 00 855 and +855 reach the same number from Europe and most of the world. From the US or Canada, dial 011 855 instead.
Do I drop the 0 after +855?
Yes. The 0 is the Cambodian trunk prefix and works only inside Cambodia. Dial +855 23 756 789, not +855 023 756 789.
Can I text a +855 number?
Yes. Write the number as +855 without its first 0.
How much does it cost to call Cambodia?
A call to a Cambodian mobile costs more than a call to a landline. The dialer on this page shows the exact price of the number you enter before you call.
Why do Cambodian mobile numbers have 8 or 9 digits?
Some Cambodian operators now issue 9-digit mobile numbers instead of 8-digit ones. Both lengths are valid after +855.
What time is it in Cambodia?
Cambodia runs on Indochina Time, seven hours ahead of UTC all year. It does not observe daylight saving.
The information on this page is accurate as of September 26, 2026.
Wikipedia: Telephone numbers in Cambodia