Northern Mariana Islands Country Code — +1-670
+1-670 is the international dialling code for Northern Mariana Islands. Numbers in Northern Mariana Islands start with this prefix when dialled from abroad.
| Field | Value |
|---|---|
| Country | Northern Mariana Islands |
| Dialling code | +1-670 |
| ISO code | MP / MNP |
| Region | Oceania · Micronesia |
| Capital | Saipan |
| Languages | fil,tl,zh,ch-MP,en-MP |
| Currency | USD — US Dollar |
| Internet TLD | .mp |
How to call Northern Mariana Islands
To call Northern Mariana Islands from another country, dial your international access prefix, then 1 670, then the local number.
- From the United States or Canada: 011 1 670, then the local number.
- From most other countries: 00 1 670, then the local number (some countries use 0011, 010 or another carrier prefix — check your operator).
- From a mobile phone abroad: +1 670 works on almost every network.
Northern Mariana Islands uses the North American Numbering Plan, so numbers are +1 + area code + 7 digits. Dialling is exactly the same as calling the US or Canada, and 10-digit dialling applies.
Other countries in Oceania
Frequently asked questions
What country is +1-670?
+1-670 is the international dialling code for Northern Mariana Islands, with capital Saipan.
How do I call Northern Mariana Islands from the US?
Dial 011, then 1 670, then the local number. From a mobile phone you can also dial +1 670 followed by the local number.
Is calling Northern Mariana Islands the same as calling the US?
Yes for dialling. Numbers use +1, a 3-digit area code and 7 digits, but your carrier may still bill it as an international call.