The +673 prefix belongs to Brunei. If you got a call or text from a number starting with +673 (calling code 673), it came from Brunei.
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Code
+673
ISO
BN
Region
Asia
Time zone
Asia/Brunei
The +673 code identifies Brunei on the international telephone network. Country code 673 is assigned to Brunei under the ITU-T E.164 numbering plan, so any phone number that begins with +673 — written +673 or 00673 — is a Brunei number.
Every Brunei number in international format follows this shape — colour-coded so you can see where the country code ends and the local number begins.
When dialing Brunei from abroad, the only fixed part is +673 — that's the country code. The rest depends on whether you're calling a mobile or landline number inside Brunei.
+XXX XXX XXXX
Example: +673 712 3456
+673 XX XXXX XXX
Include the area code if applicable. Omit any leading 0.
Enter the country code +673 when dialing Brunei from abroad.
Add the local phone number (in most countries, drop the leading zero).
Use TwinPhone to connect the call at low per-minute rates.
Enter a phone number and start instantly
Example numbers for Brunei:
Dialing codes immediately above and below +673 in the ITU plan — handy if you mistyped a digit or are dialing across a region.
Everything you need to know about TwinPhone.
The +673 code belongs to Brunei. Any phone number that starts with +673 — or with 00673 — is a Brunei number.
The 00673 prefix is Brunei. The 00 is the international exit code dialed from Europe and many other regions; it is followed by +673, the Brunei country code.
Dialing code 673 (dialed as +673 or 00673) belongs to Brunei. Any phone number that starts with +673 is a Brunei number.
Country code 673 is the ITU-T E.164 calling code for Brunei. To call Brunei from abroad, dial +673 followed by the national number.
The country code (international dialing code) for Brunei is +673. To call Brunei from abroad, dial +673 followed by the national number (in most countries, without its leading zero).
+673 is Brunei's international country calling code under the ITU E.164 plan — often searched as the "673 area code". Any phone number starting with +673 is a Brunei number.
From TwinPhone, just type +673 and the number — we connect it. From a landline, dial your exit code, then +673, then the number (in most countries, without the leading 0).
Brunei's current local time is shown live on this page. Check it before calling so you reach people during waking hours.
Yes! Virtual numbers in Brunei start at $1.60/month. Use it as your caller ID so people see a local number, or receive incoming calls directly in your browser.
Calling Brunei with TwinPhone starts from $0.02/min, billed by the minute (rounded up to the next full minute). It is pay-as-you-go from your browser — no connection fee and no monthly fee. The exact per-minute price for +673 landlines and mobiles is shown live on this page.
Yes. TwinPhone works entirely in your web browser — Chrome, Edge, Safari, or Brave on desktop or mobile. There is no app to install and no SIM card: open the site, add credit, dial +673 and the Brunei number, and the call connects.
A +673 number is not automatically a scam — +673 is simply the country code 673 assigned to Brunei under ITU-T E.164, so the call or text came from Brunei. If you do not know anyone there, treat an unexpected +673 call with the same caution as any unknown number: do not call back blindly and do not share personal details. Costs to call Brunei are shown above.
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