Find any 671- phone number in Guam
The 671 area code is the telephone numbering plan code for the United States territory of Guam. This area code serves the western Pacific United States territories covered in the North American Numbering Plan (NANP). Covered countries include Guam, the U.S. Virgin Islands, Puerto Rico, the Northern Mariana Islands, and American Samoa.
The North American Numbering Plan is a geographical numbering system managed by the North American Numbering Plan Administration. The NANP designates telephone number ranges and area codes to meet call delivery and marketing needs. Generally, area codes are divided along state and province boundaries, as well as other territories, as a convenience to which area the calling parties are dialing. The NANP also allows for certain reserved area codes in special cases, such as 809 for international access and 0 for an operator. The digit 1 is also used in some special cases, such as 800, 866, and 888 for toll-free services and 900 for premium services.