Calling American Samoa from the United States explained:

• 1 - Country Code for American Samoa
• 684 - area code within the NANP
• local phone number - 7 digits
• US to American Samoa international dialing format: 1 684 ??? ????
• this US territory is part of the North American Numbering Plan - NANP (calling it works like a US state to state call)

How to dial to American Samoa cellular:

• dialing format for calls to a cell phone: 1 684 733 ???? (258 ???? for PCS subscribers)

Phone Books:

• PagoPago.com - an easy to use phone book and island guide