Country Calling Codes HomeInternational calling from Montserrat to Guam made easy Perform a New Calling Codes Search Need help with Montserrat or Guam calling codes? Click here.
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Country flag of Montserrat Country flag of Guam

How to call a Guamanian mobile phone from Montserrat.

Dial the following international mobile code:

1 + 671 + The Number

* Do not dial the plus (+) symbols

Visit!Call Guam for just /min!
from any phone or use our free calling app.

How to make your international call 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.

World Time Zones World Times:

The time in Montserrat is now 20:53:01 PM (08:53:01 PM)
The time in Guam is now 10:53:01 AM (10:53:01 AM)


We hope that the Country Calling Codes mobile country codes guide has helped you call a cell phone in Guam. Why not share our Guam 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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