Cambodia Country Code

The country code for Cambodia is +855.

Calling code: +855
ISO code: KH · KHM
Region: Asia

How to call Cambodia from the US

011+855+local number

011 is the US and Canadian exit code; from a mobile you can dial + instead, anywhere in the world. Numbers written locally in Cambodia start with a 0 — drop it when you dial in from abroad.

Example Cambodia numbers in international format, as published by the numbering-plan source.
Line type	Dial from abroad
Fixed line	+855 23756789
Mobile	+855 91234567

Calling out of Cambodia

Cambodia does not publish a single international access code: the prefix selects the carrier that will handle the call, so the digits depend on which one you use. Dialling + from a mobile avoids the choice.

Scope the Cambodia calling code and its dialing rules. Source datasets/country-codes (E.164 + ISO 3166) (ITU-T E.164 + ISO 3166, 2026-07 release) and libphonenumber PhoneNumberMetadata (Google) (libphonenumber master, 2026-08 snapshot). Updated 25 August 2026. Example numbers are the numbering plan's own published examples, not real subscriber lines.