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 05:05:42pm

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)

Phone books:

The Guam Phone Book

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