How to Call Guam From Cayman Islands
Dial the following international dialing codes:

1 + 671 + Local Number

* Do not dial the plus (+) symbols

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How to call Guam from Cayman Islands: 1 - Cayman Islands exit code 671 - Guam area code 1 + 671 + Local Number - Overall dialing code format Note: Guam and Cayman Islands 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 Times: The time in Cayman Islands is now 22:11:05 PM (10:11:05 PM) The time in Guam is now 13:11:05 PM (01:11:05 PM)  Mobile Codes: Get the mobile country codes for calling Guam from Cayman Islands.  Save on your call to : Call Guam with Rebtel - $10 free to call! SpeedyPin Calling Cards - From 0.4¢ per Minute