How to call a Guam mobile phone:
1 - Montserrat exit code
671 - Guam country code
1 + 671 + Local Number - Overall dialing format
Note: Guam and Montserrat are both members of NANP (North American Numbering Plan) so when calling between these countries, 1 is used in place of the country exit code.
The time in Montserrat is now 11:58:31 AM (11:58:31 AM)
The time in Guam is now 01:58:31 AM (01:58:31 AM)