Cambodia Phone Number Format for Local and International Calls

Major components of the Cambodian phone number format include the country code, the National Destination Code, and the subscriber’s phone number.

The country code is a unique phone number identifier assigned to each country. Every country has its own code, which you must dial when calling from abroad. For Cambodia, the country code is +855.

Trunk code ‘0’ is a phone prefix many nations use for domestic and long-distance calling. Cambodia also uses this code to direct a call to different regions or networks within the country. However, when calling internationally, you must omit the trunk code and replace it with the country code.

The NDC is the first part of the local number that identifies a specific area, network, or service provider within the country. It routes your call to the correct region or mobile network. For landline numbers in Cambodia, the NDC represents the area codes, while for mobile phones, it serves as the mobile prefix.

The following are some popular area codes in Cambodia alongside their respective cities:

The following are the top mobile operators and their carrier prefixes:

The subscriber’s number is the unique phone number assigned to an individual or business. It follows the NDC and is the final part of the phone number structure. In Cambodia, the subscriber’s number is 6 or 7 digits long.

A local phone number format in Cambodia consists of a trunk code, NDC (area code or carrier code), and the subscriber's number.

Here’s how to dial Cambodia domestically:

• Step 1 - Dial '0', the trunk code.
• Step 2 - Dial the NDC code (area code or mobile prefix).
• Step 3 - Dial the 6 or 7-digit subscriber number.

Examples of Format for Cambodian Phone Number for Local Calls:

Landline Number: 023 456 7XX

• 0 - Trunk code
• 23 - Area code for Phnom Penh
• 456 7XX - Subscriber number

Mobile Number: 012 945 6XX

• 0 - Trunk code
• 12 - Mobile network prefix (Smart)
• 945 6XX - Mobile number

Toll-Free Number: 1800 123 4XX

• 1800 - Toll-free prefix
• 23 4XX - subscriber number

Premium Phone Number: 1900 967 34X

• 1900 - Premium phone number prefix
• 967 34X - Local phone number

Cambodia’s international phone number format consists of the exit code, the Cambodian country code, followed by the area code or mobile prefix, and the local number.

Here’s how to dial Cambodia from overseas:

• Step 1 - Dial the exit code of your country (For instance, 001 for the US and 011 for the UK).
• Step 2 - Enter the country code of Cambodia, 855.
• Step 3 - Enter the NDC code (area code or mobile prefix), omitting the leading zero.
• Step 4 - Dial the subscriber’s 6 or 7-digit phone number.

Examples of Cambodian Phone Number Structure for International Call:

For Landline: 001 855 63 987 6XX

• 001 - exit code (when calling from the US)
• 855 - Cambodia's country code
• 63 - the area code for Siem Reap
• 987 6XX - local landline number

For Mobile: 011 855 12 345 6XX

• 011 - exit code (when calling from the UK)
• 855 - Cambodia's country code
• 12 - mobile prefix for Cellcard
• 345 6XX - local mobile number

For Toll-Free Number: 011 855 1800 555 11X

• 011 - exit code (when calling from the UK)
• 855 - Cambodia's country code
• 1800 - Cambodian toll-free prefix
• 555 11X - local toll-free number

For Premium Number: 001 855 1900 657 3XX

• 001 - exit code (when calling from the US)
• 855 - Cambodia's country code
• 1900 - premium number prefix
• 657 3XX - subscriber’s number 

Emergency phone numbers in Cambodia are usually three digits long. These numbers are designed to be short and easy to remember to connect people quickly with essential services like police, fire, and medical assistance.

The following are some crucial emergency phone numbers in Cambodia:

Besides the correct dialing pattern, it’s crucial to understand the time zone differences and be aware of the calling costs to make successful calls to Cambodia. This will ensure your call is placed at the right time and at an affordable rate.

Cambodia follows Indochina Time (ICT), which is UTC+7. When calling from abroad, it’s important to consider the time difference between Cambodia and your country to avoid calling during odd hours.

Calling Cambodia, especially from abroad, can be expensive. The exact cost depends on the telecom carrier and the plan you choose. Compare different providers to find the most affordable option.

For a more cost-effective alternative, consider using a virtual phone number. These numbers operate on the internet and often come at a much lower price compared to traditional phone services.

It’s essential to understand the correct phone number format for Cambodia to ensure a successful call from inside or outside the country. For local calls, dial the trunk code, followed by the area code/carrier prefix, and the local phone number. For International calls, dial your country’s exit code, Cambodia's country code, followed by the area code and phone number.

But even when you follow the correct dialing sequence, sometimes calls can still fail due to poor network connections. Not to mention the expensive call charges when you’re calling from abroad.

To avoid network issues and high cost, consider using virtual phone numbers from Calilio. With the robust network technology, Calilio ensures to connect Cambodia with crystal-clear call quality at an affordable price for local as well as international calls - all you need is a reliable internet connection. Get a virtual phone number from Calilio today!