Brunei Country Code

The country code for Brunei is +673.

Calling code: +673
ISO code: BN · BRN
Region: Asia
Dialling out: 00

How to call Brunei from the US

011+673+local number

011 is the US and Canadian exit code; from a mobile you can dial + instead, anywhere in the world. Brunei has no trunk prefix to drop: dial the local number exactly as it is written.

Example Brunei numbers in international format, as published by the numbering-plan source.
Line type	Dial from abroad
Fixed line	+673 2345678
Mobile	+673 7123456

Calling out of Brunei

To call abroad from Brunei, dial 00 before the destination's country code. From a mobile, + works instead.

Official name: Brunei Darussalam.

Scope the Brunei 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.