How to Call Northern Mariana Islands Hide

Country Code Guide is your one-stop shop for making international calls from anywhere in the world. Here's how to call Northern Mariana Islands:

  1. Dial the exit code for your country. This is usually 00 or 011.
  2. Dial the country code for Northern Mariana Islands, which is +1-670.
  3. Dial the area code for the city you're calling in Northern Mariana Islands.
  4. Dial the local phone number.

For example, to call a mobile phone number in Northern Mariana Islands from the United States, you would dial:

011 1 --- -------
Northern Mariana Islands City Codes Hide
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Dial Codes
Northern Mariana Islands does not use city codes.

Calling from other countries to Northern Mariana Islands

Are you calling someone in Northern Mariana Islands from outside the country? Select a country from the list below to discover the international dialing code you need to dial for calling Northern Mariana Islands.