How to call a Guamanian mobile phone from Guam.

Dial the following international mobile code:

1 + 671 + The Number

* Do not dial the plus (+) symbols

How to call a Guam mobile phone:

1 - Trunk code to dial first when calling within Guam
1 + 671 + Local Number - Overall dialing format

The time in Guam is now 00:23:59 AM (12:23:59 AM)