Northern Mariana Islands

Information about the numbers of countries Zone 1.
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Northern Mariana Islands

Post by ScamNumbers »

The area code for the U.S. Commonwealth of the Northern Mariana Islands is 670 and the country is part of the NANP.

Area code 670 was created was created in 1997, replacing Guam's previous country code 670.

In the U.S. Commonwealth of the Northern Mariana Islands, a local telephone number is dialed using the seven digits of the telephone number. Callers from the United States or another NANP country would dial this with 1 670 and then the seven digits. Callers from outside the NANP would dial their international access code, followed by 1 and the full 10 digit number.
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