How to call Northern Mariana from the USA/Canada:

1 - 670 - local number

*Use also to TEXT Northern Mariana numbers.

Calling from other country?

The time in Northern Mariana Islands is now 04:19:17pm

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!

Phone books: