Calling Northern Marianas from the United States explained:
- 011 - US exit code; have to be dialed first for all international calls made from the US/Canada number plan
- 1 - international country code for Northern Marianas
- US to Northern Marianas international dialing format : 011 + 1 + individual phone number
Information about country:
The Northern Mariana Islands, officially the Commonwealth of the Northern Mariana Islands, is a commonwealth in political union with the United States, occupying a strategic region of the western Pacific Ocean. It consists of fifteen islands about three-quarters of the way from Hawaii to the Philippines. The United States Census Bureau reports the total land area of all islands as 179.01 square miles .