Country Code for Calling Northern Mariana Islands

The country code prefix for calling Northern Mariana Islands is +1 670.

To make an international phone call, you should dial: "exit code of your country" + "country code of the country you are dialing to" + "the phone number you want to call".

• For the country codes of the other countries see: a list of country codes for making international phone calls.
• For more information about Northern Mariana Islands see Northern Mariana Islands on Wikipedia

• Guam - International area code: +1 671
• American Samoa - International area code: +1 684
• Puerto Rico - International area code: +1 787 / 939
• Bahamas - International area code: +1 242
• Barbados - International area code: +1 246
• Anguilla - International area code: +1 264
• Antigua and Barbuda - International area code: +1 268
• British Virgin Islands - International area code: +1 284
• Cayman Islands - International area code: +1 345
• Bermuda - International area code: +1 441