Area Code 28 – Brunei Muara

Overview of Brunei Area Code 28

Area code 28 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, used for fixed-line (PSTN) services within this administrative region.

Geographic Coverage and Jurisdiction

The Brunei Muara District is the administrative and economic heart of Brunei, encompassing the capital and its surrounding urban and suburban areas. Key locations served by area code 28 include:

• Bandar Seri Begawan (the capital and largest city)
• Kianggeh and Berakas areas
• Gadong and Batu Satu commercial zones
• Kota Batu and Jerudong (including the Jerudong Park area)

This district hosts most of Brunei's government ministries, financial institutions, and major commercial centers, making the 28 code the most recognized fixed-line prefix in the country.

Dialing Formats

Brunei's national numbering plan uses a closed dialing format. All fixed-line numbers are eight digits long, including the NDC. The area code 28 is followed by a six-digit subscriber number.

• Local dialing (within Brunei): Dial only the eight-digit number, e.g., 28xxxxx (replace xxxxxx with the actual subscriber number).
• International dialing (from outside Brunei): Dial the international access prefix (e.g., 00 or +), then Brunei's country code 673, followed by the eight-digit number, e.g., +673 28xxxxx.

Example: For a fixed-line number in Bandar Seri Begawan, a local caller would dial 28123456, while an international caller would dial +673 28123456.

Overlay and Numbering Considerations

As of the latest ITU-T operational bulletin, Brunei has not implemented overlay codes for fixed-line services. The 28 code remains the sole geographic NDC for the Brunei Muara District. However, with the growth of VoIP and mobile services, some numbers may be routed over IP networks, but the dialing format remains unchanged for end users.

Caller Instructions

• Local callers: Simply dial the eight-digit number. No trunk prefix is required.
• International callers: Use the plus sign (+) or the international exit code of your country, followed by 673 and the full eight-digit number. Ensure you omit any leading '0' that might be used in some countries' domestic dialing.

For businesses, having a 28 number signifies a physical presence in the capital district, which can enhance local credibility. For tourists or expatriates, understanding this code helps identify fixed-line numbers in the main urban area of Brunei.