Brunei Phone Number Format

Country code +673 — Complete guide to Brunei phone number formats, mobile and landline structures, and area codes.

Number Format Overview

Phone numbers in Brunei use the international country code +673. When dialing from outside Brunei, you must include this country code before the local number.

International Format

+673 [area code] [local number]

From the United States

011 673 [area code] [local number]

When dialing a number within Brunei, local dialing rules apply. You may need to include a trunk prefix (often 0) before the area code for domestic calls, but you should omit this prefix when dialing internationally.

Mobile vs. Landline Numbers

Mobile Numbers

Mobile phone numbers in Brunei typically:

Begin with specific mobile prefixes
May have a different length than landline numbers
Are often 8-10 digits after the country code

+673 XX XXXX XXXX

Landline Numbers

Landline numbers in Brunei typically:

Start with a geographic area code
Area codes identify the city or region
Total length varies by area code

+673 (area) XXXX XXXX

Example Phone Numbers

These are example formats only and are not real phone numbers:

Type	Local Format	International Format	From US
Landline (Bandar Seri Begawan)	`(0XX) XXXX XXXX`	`+673 XX XXXX XXXX`	`011 673 XX XXXX XXXX`
Mobile	`0XXX XXX XXXX`	`+673 XXX XXX XXXX`	`011 673 XXX XXX XXXX`
Toll-Free	`0800 XXX XXXX`	`+673 800 XXX XXXX`	`011 673 800 XXX XXXX`

Brunei Area Codes

Major area codes in Brunei:

Area Code	City / Region
`2`	Brunei/Muara
`3`	Kuala Belait
`5`	Temburong
`4`	Tutong

Dialing Tips

Remove the leading zero: When dialing internationally, drop the trunk prefix (usually 0) that is used for domestic calls in Brunei.
Use the + notation: From a US mobile phone, use +673 instead of 011 673.
Verify the number length: Make sure you have the correct number of digits. If your call does not connect, check whether you need to add or remove an area code digit.
Save contacts in international format: Always store phone numbers with the full +673 prefix so they work from any country.

Brunei Quick Info

Country Code	+673
ISO Code	BN
Capital	Bandar Seri Begawan
International Prefix	011 (from US)

Full Country Profile

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