Where Is Area Code 671?
Area code 671 serves Guam, a U.S. territory in the western Pacific Ocean and part of Micronesia. Hagåtña is Guam’s capital and the primary city associated with the area code.
Major communities include Dededo, Yigo, Tamuning, Mangilao, Barrigada, and Santa Rita. Guam has no counties. Local government is organized into 19 villages, and all of Guam uses area code 671.
Guam is the largest island in the Mariana Islands chain. Notable places in the area include Tumon Bay, Apra Harbor, Two Lovers Point, and War in the Pacific National Historical Park.
Cities and Communities in the 671 Area Code
- Agat
- Agana Heights
- Asan-Ma'ina
- Barrigada
- Chalan Pago-Ordot
- Dededo
- Hagåtña
- Inarajan
- Mangilao
- Merizo
- Mongmong-Toto-Maite
- Piti
- Santa Rita
- Sinajana
- Talofofo
- Tamuning
- Umatac
- Yigo
- Yona
History of Area Code 671
Area code 671 was established for Guam on July 1, 1997, when Guam joined the North American Numbering Plan. It was not created through a split from another Guam area code. Before Guam joined the plan, international callers used Guam’s country calling code, +671.
Guam continues to use 671 as a single geographic area code. No area code overlay or split has been introduced for Guam, so the same code covers Hagåtña and the island’s other villages.
Key Facts About Area Code 671
- Area code 671 is assigned to Guam, identified by the postal abbreviation GU, and Hagåtña is its primary city.
- Guam is part of the U.S. Territories region used by the U.S. Census Bureau.
- The 2020 U.S. Census recorded 153,836 people in Guam, providing an approximate resident population for the area code.
- Area code 671 is a geographic area code, not a toll-free code.
- Guam began using 671 as a North American Numbering Plan area code on July 1, 1997.
- Guam has one area code and has not added an overlay or split for its villages.
- Area code 671 uses Chamorro Time.
- The University of Guam is in Mangilao, and Naval Base Guam is in Santa Rita.
Frequently Asked Questions
What state is area code 671 in?
Area code 671 is assigned to Guam, a U.S. territory.
What major cities use area code 671?
Hagåtña, Dededo, Tamuning, and Yigo use area code 671, along with Guam’s other villages.
What time zone is area code 671 in?
Area code 671 uses Chamorro Time.
Is area code 671 a toll-free number?
No, area code 671 is a geographic area code assigned to Guam, not a toll-free number.