Area Code 220 – Brunei Muara

Overview of Brunei Area Code 220

Area code 220 is a geographic National Destination Code (NDC) assigned to the Brunei Muara District, the smallest but most populous district in Brunei, which includes the capital city, Bandar Seri Begawan. This code is part of Brunei's national numbering plan under the ITU-T E.164 standard, managed by the Authority for Info-communications Technology Industry of Brunei Darussalam (AITI).

Geographic Coverage and Administrative Jurisdiction

The 220 prefix serves fixed-line (PSTN) subscribers within Brunei Muara, covering the capital and its surrounding areas, including major suburbs such as Gadong, Berakas, and Kiulap. It is a geographic code, meaning the number is tied to a physical location, and it is used for both residential and business landlines. The district is the administrative and commercial heart of Brunei, hosting government offices, financial institutions, and the main international airport.

Dialing Formats and Caller Instructions

For local callers within Brunei, the number is dialed as an 8-digit national significant number (NSN), which includes the area code. For example, to call a landline in Brunei Muara, you would dial:

• Local dialing (within Brunei): 220 XXXX
• International dialing (from abroad): +673 220 XXXX

Note that the leading '0' is not used in Brunei's international dialing; the country code +673 is followed directly by the NSN. For instance, if the local number is 220 1234, an international caller would dial +673 220 1234.

Overlay Considerations and Numbering

Currently, Brunei does not have overlay area codes in the traditional sense; each district has its own distinct NDC. The 220 code is exclusively used for Brunei Muara, and there are no plans for an overlay as the numbering capacity is sufficient for the population. However, with the growth of VoIP and mobile services, some numbers may be non-geographic, but 220 remains strictly for fixed-line services.

Caller Instructions for Local and Foreign Callers

For local callers, simply dial the 8-digit number. For foreign callers, always replace the local trunk prefix (if any) with the international access code of your country, then Brunei's country code +673, followed by the 8-digit number. Ensure you drop any leading '0' that might appear in local listings. For example, a number listed as 220 5678 would be dialed as +673 220 5678 from overseas.