How to Call Mariana Islands From Puerto Rico
Dial the following international dialing codes:

1 + 670 + Local Number

* Do not dial the plus (+) symbols

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How to call Mariana Islands from Puerto Rico: 1 - Puerto Rico exit code 670 - Mariana Islands area code 1 + 670 + Local Number - Overall dialing code format Note: Mariana Islands and Puerto Rico 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 Puerto Rico is now 07:31:43 AM (07:31:43 AM) The time in Mariana Islands is now 21:31:43 PM (09:31:43 PM)  Mobile Codes: Get the mobile country codes for calling Mariana Islands from Puerto Rico.  Save on your call to : Call Mariana Islands with Rebtel - Save 50% now! SpeedyPin Calling Cards - From 0.4¢ per Minute