How to call Northern Mariana Islands using the international calling code +1670 and area code.
Dial your exit code
Enter the international access code for your country (e.g. 011 in the US, 00 in Europe).
Enter the country code +1670
Dial +1670 when calling from outside Northern Mariana Islands.
Add the local phone number
Enter the local number without the leading zero.
Mobile example
+1670 XXX XXX XXX
Dial the country code, then the full mobile number.
Landline example
+1670 XX XXXX XXXX
Include the area code if applicable. Omit any leading 0.
The calling code for Northern Mariana Islands is +1670. To call, start with your international access code, then dial +1670 followed by the local number.
In Northern Mariana Islands, the main languages spoken are English, Chamorro.
Northern Mariana Islands uses the following time zone: Pacific/Guam. Make sure to check local time before placing your call.
No app download is necessary. You can call numbers in Northern Mariana Islands directly from your browser using DialBridge. Just enter the Northern Mariana Islands phone number (+1670) to get started.
A typical mobile number format is: +1670 123 456 789. Remember to omit any leading zero from the local number.
Best times to call are typically 9 AM – 5 PM local time in Northern Mariana Islands. Avoid early morning (before 8 AM) or late evening (after 9 PM).