How to call Guam from the USA or from Canada:

dial 1 - 671 - local phone number
Calling from another country?

The time in Guam is now 04:31:00am

Calling Guam from the United States explained:

  • 1 - North American long distance prefix
  • 671 - area code assigned to Guam
  • local phone number - 7 digits
  • US to Guam international dialing format: 1 671 ??? ????
  • this US territory is in the North American Numbering Plan (calling it works like a US long distance call)...however, international or sometimes unexpected charges may apply when calling numbers in area code 671!

Phone books: