IT&E implements new dialing procedure requiring 670 area code for mobile calls in the CNMI

IT&E advises mobile subscribers that effective October 24, 2021, all local phone calls in the CNMI must include the 670 area code.


The new dialing procedure impacts all outgoing calls made from mobile devices. Calls from landline numbers will not be affected.


The area code must be dialed first, followed by the local telephone number. (For example: 670-682-4483.) If the area code is not dialed, the call will not be completed.  


The new dialing procedure is mandated by the Federal Communications Commission, which has designated 988 as the service number for the National Suicide Prevention Lifeline. The new dialing procedure will prevent accidental calls to the Lifeline, which could delay services to those in need.

“Our mobile subscribers in both Guam and the CNMI will be required to include their respective area codes when dialing. We understand that the new dialing procedure will take some adjustment, but this will allow us to provide consistent operations for all our mobile subscribers.” 

Rose Soledad, General Manager of IT&E

Tips to prepare for the new dialing procedure:

·       Add 670 to the beginning of all local phone numbers in your contact list.

·       Reprogram all numbers on life safety systems or medical monitoring devices, PBXs, fax machines, fire or burglar alarms and security systems or gates.

·       For business: Be sure to check websites, personal and business stationery, advertising materials, personal and business checks for contact information and other such items to ensure the area code is included.

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IT&E has been delivering connections that matter in Guam and the Marianas for more than 35 years. IT&E is the leading provider of mobile technology and world-class telecommunications services on the widest 4G LTE data network. Learn more about IT&E at