Area Code 58 – Temburong
The phone area code for Temburong is 58 (international format +67358). Browse local exchange codes (NXX) and carrier assignments below.
📍 Geographic Location of Temburong
Geographic Overview
The country calling code +673 is assigned to Brunei Darussalam under the ITU-T E.164 international numbering plan. Within Brunei, the prefix '58' is a geographic area code that designates the Temburong District, the country's eastern exclave separated from the main Brunei-Muara District by the Brunei Bay and the Malaysian state of Sarawak. Temburong is the least populous district, known for its pristine rainforests, the Ulu Temburong National Park, and the town of Bangar, which serves as the administrative center. The district is connected to the mainland via the Temburong Bridge, a major infrastructure link.
Dialing Formats
When dialing a landline number in Temburong from within Brunei, subscribers use the national format: 58X XXXX, where '58' is the National Destination Code (NDC) and the following seven digits form the subscriber number. For example, a local number might appear as 58 123 4567. From outside Brunei, callers must use the international format: +673 58X XXXX, omitting any leading trunk prefix (Brunei does not use a trunk prefix like '0'). For instance, to call a Temburong number from abroad, dial +673 58 123 4567.
Calling Instructions
- Local callers (within Brunei): Dial the 7-digit subscriber number directly, e.g., 58 123 4567.
- International callers: Dial the international access code (e.g., '00' from many countries), then Brunei's country code 673, followed by the area code and subscriber number: 00 673 58 123 4567.
Regulatory and Technical Notes
The numbering plan for Brunei is managed by the Authority for Info-communications Technology Industry (AITI). Geographic area codes are allocated to fixed-line services, and the '58' prefix is specifically assigned to Temburong District. As of the latest updates, there are no overlay codes in Temburong; the district uses only the '58' prefix. However, with the growth of VoIP and mobile services, some numbers may be routed over IP networks, but the geographic significance remains for regulatory and emergency service purposes. Callers should note that while mobile numbers in Brunei also use the +673 country code, they are non-geographic and typically begin with '7' or '8', so a prefix of '58' clearly indicates a fixed-line service in Temburong.