Cambodia +855
Official telecommunications routing registry for Cambodia. International dialing prefix is +855. Browse all regional numbering plan area codes below.
ποΈ All Numbering Plan Area Codes (NPA)
Select an area code to view local exchange registries, carrier mappings, and geographic zones
π Neighboring Countries
Cambodia, officially the Kingdom of Cambodia, is a Southeast Asian nation with a rapidly developing telecommunications sector. The country code +855 is assigned by the International Telecommunication Union (ITU) and is used for all international calls to Cambodia. Over the past decade, Cambodia has witnessed a significant expansion in mobile and internet connectivity, driven by a competitive market of local and international operators. Despite this growth, landline penetration remains relatively low, with mobile phones accounting for the vast majority of voice and data communications. Understanding the structure of Cambodian telephone numbers, including the use of area codes for fixed lines and prefixes for mobile services, is essential for anyone looking to establish reliable contact with businesses, government offices, or individuals within the country.
Dialing Instructions for Cambodia
To call a Cambodian number from abroad, the international dialing format must be followed precisely. The standard sequence is: International Access Code (typically '+' or '00' depending on the country of origin), followed by 855 (the country code), then the national significant number, which includes the area code (for fixed lines) or mobile prefix (for mobile numbers) and the subscriber number. For calls from within Cambodia, the national trunk prefix '0' is used before the area code or mobile prefix. For example, to call a Phnom Penh landline from overseas, you would dial +855 23 XXXXXX, whereas domestically you would dial 023 XXXXXX. It is crucial to omit the leading '0' when dialing from abroad, as it is a domestic trunk prefix only.
Area Codes and Numbering Plan
Cambodia's national numbering plan assigns area codes to different provinces and cities for fixed-line services. The capital, Phnom Penh, uses the area code 23, while other major urban centers have their own distinct codes: Siem Reap (63), Sihanoukville (34), Battambang (53), and Kampong Cham (42), among others. These area codes are generally two digits, followed by a subscriber number of six or seven digits, making the total national significant number (excluding the trunk prefix) eight or nine digits. Mobile numbers in Cambodia do not follow geographic area codes but instead use dedicated prefixes assigned to mobile operators, such as 10, 11, 12, 15, 16, 17, 18, 69, 70, 77, 78, 81, 85, 87, 88, 89, 90, 92, 95, 96, 97, 98, and 99. These prefixes are followed by a six- or seven-digit subscriber number. When dialing a mobile number from abroad, you simply use +855 followed by the mobile prefix (without the leading '0') and the subscriber number.
Special Rules and Considerations
One of the most important aspects of dialing Cambodia is to remember to drop the leading '0' of the area code or mobile prefix when making an international call. Failure to do so may result in a failed connection or an unexpected routing error. Additionally, Cambodia has implemented a uniform numbering system that aims to keep fixed and mobile numbers within the same length, though variations still exist. For voice over IP (VoIP) calls, the same rules apply, but users should be aware that some VoIP providers may not support calls to premium numbers or certain services. Emergency services in Cambodia can be reached at 117 (police), 118 (fire), and 119 (medical), but these numbers are only accessible domestically. International callers should contact the local emergency number after arriving or use the appropriate embassy contact.
Traveler and Business Tips
For travelers visiting Cambodia, it is highly recommended to purchase a local SIM card upon arrival, as international roaming charges can be exorbitant. Major mobile operators, such as Smart Axiata, Metfone, and Cellcard, offer affordable prepaid plans with data packages. These SIMs come with a Cambodian phone number that can be used for local calls and internet access. When providing your number to contacts abroad, always include the country code +855 and omit the leading '0' of the number. For business professionals, establishing a local presence often involves obtaining a Cambodian mobile number or a fixed line in Phnom Penh (area code 23) to build trust with local partners. It is also advisable to check the reliability of international call connections, as some remote areas may have limited coverage. Using messaging apps like WhatsApp or Telegram, which are popular in Cambodia, can be a cost-effective alternative for international communication, provided both parties have internet access.