In order to call internationally, you must have an international calling service. With many international calling services you will also have to dial an access numbers and PIN before dialing the exit code.
Dial the USA exit code — 011.
Dial the Northern Mariana Islands country code — 1.
Dial the area code or city code of the destination and the phone number.
Calling the QuickCall.com way
Download our app an never worry about expensive rates or complicated dialing. It syncs automatically with your phone's contacts!