Dialing code for Northern Mariana Islands - 1670. List of Northern Mariana Islands phone codes.

The international dialing code of the country is Northern Mariana Islands 1670.

Calls are initiated by dialing these code to call Northern Mariana Islands from other countries.

We’ve listed all the dialing codes for Northern Mariana Islands in table below are the dialing codes of the regions and cellular operators in Northern Mariana Islands.

If you received an unknown incoming phone call from Northern Mariana Islands, you can determine who called you. Using the tables below, you can find out from which region or which mobile network the call was made.

If you are in the country of Northern Mariana Islands, then for calls to another country simply dial your prefix of international direct dialing, dial country code and national telephone number.

Use our form to find out the international direct dialing (IDD) prefix and the code destination country.

Phone codes Northern Mariana Islands

City Dial Codes