How to call a US mobile phone from Guam.
Dial the following international mobile code:
1 + Area Code + The Number * Do not dial the plus (+) symbols
How to call a United States mobile phone:
1 - Guam exit code
1 + Area Code + Local Number - Overall dialing format
Note: United States and Guam 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.
We hope that the Country Calling Codes mobile country codes guide has helped you call a cell phone in United States. Why not share our phone book with your friends and bookmark this page and tell a friend about this site for the next time they need to search for mobile area codes or call a cellular phone in another country.
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