How to call a Guam mobile phone:
1 - Grenada and Carriacuou exit code
671 - Guam country code
1 + 671 + Local Number - Overall dialing format
Note: Guam and Grenada and Carriacuou 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 Grenada and Carriacuou is now 10:20:59 AM (10:20:59 AM)
The time in Guam is now 00:20:59 AM (12:20:59 AM)