Brunei Phone Number Format

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

How Brunei Phone Numbers Are Written

Phone numbers in Brunei have 7 digits after the country code +673. There is no trunk prefix to remove: the number is written the same way at home (71X XXXX) and after the country code (+673 71X XXXX).

Country code	+673
Digits after +673	7 digits
Trunk prefix (domestic calls)	None
Mobile numbers start with	22, 7 or 8
Exit code (to call abroad from Brunei)	00
Dial from the US	011 673 71X XXXX

Mobile vs. Landline Numbers

Mobile numbers

7 digits after +673, starting with 22, 7 or 8.

71X XXXX at home

+673 71X XXXX international

Landline numbers

7 digits after +673. Landlines begin with an area code, for example Brunei Muara:

234 XXXX at home

+673 234 XXXX international

Brunei Number Types

Type	Starts with	Written at home	International	From the US
Mobile	22, 7 or 8	`71X XXXX`	`+673 71X XXXX`	`011 673 71X XXXX`
Landline	2, 3, 4, 50–52 or 55–59	`234 XXXX`	`+673 234 XXXX`	`011 673 234 XXXX`
VoIP	—	`534 XXXX`	`+673 534 XXXX`	`011 673 534 XXXX`

X stands for any digit. Source: libphonenumber metadata (phonenumbers 9.0.40), Google's open numbering data.

Checking a number from Brunei? The phone number checker tells you if it is valid, mobile or landline, and gives its international format.

Brunei Area Codes

Major area codes in Brunei:

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

Dialing Tips

Keep every digit: Brunei numbers have no trunk prefix, so dial them after +673 exactly as they are written locally.
Use the + notation: From a US mobile phone, use +673 instead of 011 673.
Verify the number length: Numbers in Brunei have 7 digits after +673. If your call does not connect, check that no digit is missing or doubled.
Save contacts in international format: Always store phone numbers with the full +673 prefix so they work from any country.

Brunei Phone Number FAQ

How many digits does a phone number in Brunei have?

Phone numbers in Brunei have 7 digits after the country code +673.

What do mobile numbers in Brunei start with?

Mobile numbers in Brunei start with 22, 7 or 8, for example 71X XXXX.

How do I write a phone number from Brunei in international format?

Start with +673, then the national number. For example, a mobile number written 71X XXXX at home becomes +673 71X XXXX. From a US landline, dial 011 673 71X XXXX.

How do I call the US from Brunei?

Dial the exit code 00, then 1 and the 10-digit US number: 00 1 XXX XXX XXXX. From a mobile phone you can use + instead of 00: +1 XXX XXX XXXX.

Brunei Quick Info

Country Code +673

ISO Code BN

Capital Bandar Seri Begawan

International Prefix 011 (from US)

Full Country Profile

Nearby Countries