Calling Brunei from the United States explained:

• 011 - US exit code; dial first for international calls made from the USA or Canada
• 673 - Country Code for Brunei
• Phone Number - 7 digits
• US to Brunei international dialing format: 011 673 ??? ????

How to dial to Brunei cellular:

• dialing format for calls to a cell phone: 011 673 ??? ????
• the initial digit(s) for cell phone numbers can be 7, 8, 228, or 229

Starting digits:

Phone Books:

• Brunei Yellow Pages - business and people search