HowtoCallAbroad.com

How to call Guam from the USA/Canada:

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

The time in Guam is now 08:17:36pm

Calling Guam from the United States explained:

  • 1 - Country Code for Guam
  • 671 - area code within the NANP
  • local phone number - 7 digits
  • US to Guam international dialing format: 1 671 ??? ????
  • this US territory is part of the North American Numbering Plan - NANP (calling it works like a US state to state call)

Calling Cards:

Phone Books: