+673 is the country code for Brunei.
Every phone number in Brunei starts with +673 when you call it from another country. From the US, dial 011 673, then the full number.
- Time there
- Brunei timeBrunei Time, UTC+8, no daylight saving
- From the US or Canada
- 011 673 712 3456
- From the UK and most of Europe
- 00 673 712 3456
- From Australia
- 0011 673 712 3456
- From any mobile phone
- +673 712 3456
- Inside Brunei
- 712 3456
- Mobile numbers
- 7 digits after +673, starting 22, 7 or 8
- Landlines
- 7 digits after +673, such as +673 2XX XXXX in Brunei Muara
Check a +673 number to see whether it is a mobile, a landline or VoIP.
Pick the country, enter the number without the +673, and the free check shows whether it is valid and whether it is a mobile, a landline or VoIP.
Mobile numbers in Brunei start with 22, 7 or 8, and this table shows which networks first issued each start.
| At home | From abroad | First issued by |
|---|---|---|
| 22 | +673 22 | DSTCom |
| 7 | +673 7 | UNN |
| 8 | +673 8 | UNN |
DSTCom started 22 and UNN started 7 and 8. People keep their number when they switch networks, so the start shows where a number began. Our free number portability lookup shows the network it is on today.
4 landline areas cover Brunei, from 2 in Brunei Muara to 5 in Temburong.
| At home | From abroad | Area |
|---|---|---|
| 2 | +673 2 | Brunei Muara |
| 3 | +673 3 | Beliat |
| 4 | +673 4 | Tutong |
| 5 | +673 5 | Temburong |
In Brunei, the phone number format for apps and SMS gateways is +673 followed by the full number.
| Written | Example | Where you see it |
|---|---|---|
| At home | 712 3456 | Business cards, local ads |
| International | +673 712 3456 | Websites, email signatures |
| E.164 | +6737123456 | APIs, SMS gateways, CRMs |
A missed call from a +673 number you don't know can be a one-ring scam, so check it before calling back.
One-ring scams call once and hang up, hoping you call back a line that bills you international or premium rates.
- Don't call back an international number you don't know. A real caller leaves a message or sends a text.
- Check the number in the box above. A number that is not a working mobile or landline in Brunei is a warning sign.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report it at reportfraud.ftc.gov, and see the FCC's guide to one-ring scams.
The codes next to +673 belong to other countries, so one wrong digit reaches a different place.
These are the questions people ask most about +673.
Which country uses the +673 country code?
Brunei. Every phone number there starts with +673 when it is dialed from abroad.
How do I call Brunei from the US?
Dial 011, then 673, then the full number. A mobile number written 712 3456 at home is dialed 011 673 712 3456 from the US, or +673 712 3456 from any mobile phone.
Is +673 the same as 00673?
Yes. 00 is the exit code used in Brunei and most of the world, and the + on a mobile phone stands in for whatever exit code your network uses. From the US and Canada the exit code is 011 instead.
How many digits is a phone number in Brunei?
A mobile number has 7 digits after +673, written 712 3456 at home. A landline has 7 digits, written 2XX XXXX at home.
What are the area codes in Brunei?
2 for Brunei Muara, 3 for Beliat, 4 for Tutong and 5 for Temburong. From abroad, drop the leading digit and put +673 in front.
What time is it in Brunei?
Brunei is on Brunei Time, UTC+8, all year. It does not use daylight saving time.
How do I check a +673 number that called me?
Enter it in the box above. The free check shows whether it is a valid number from Brunei and whether it is a mobile, a landline or a VoIP line, which helps you spot a one-ring scam before you call back.
Sources: Google's libphonenumber numbering data for lengths, mobile starts, area code places, first-issuing networks and time zones, as of September 24, 2026; the ITU list of country codes.