HowtoCallAbroad.com

How to call Northern Mariana from the USA or from Canada:

dial 1 - 670 - local phone number
Calling from another country?

The time in Northern Mariana Islands is now 07:43:45am

Calling Northern Mariana Islands from the United States explained:

  • 1 - North American long distance prefix
  • 670 - area code assigned to Northern Marianas
  • local phone number - 7 digits
  • US to Northern Mariana Islands international dialing format: 1 670 ??? ????
  • this country is in the North American Numbering Plan (calling it works like a US long distance call)...however, international or sometimes unexpected charges may apply when calling numbers in area code 670!

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