Country calling code
+1 Northern Mariana Islands country code
Northern Mariana Islands’s international calling code is +1. To call a Northern Mariana Islands number from another country, dial your exit code, then 1, then the local number without the leading 1.
- Calling code
- +1
- ISO 3166 code
- MP · 580
- Exit code (calling out)
- 011
- Trunk prefix (domestic)
- 1
- Number length
- 10 digits
- Time zones
- Saipan
- Local time
- —
Number formats and examples are generated from libphonenumber-js numbering-plan metadata. They describe numbering rules, not a verified active subscriber or a phone’s current location. For an individual number, try the free format lookup.
How to call Northern Mariana Islands
| Calling from | Dial |
|---|---|
| A mobile phone, anywhere | +1 670 234 5678 |
| United States & Canada | 011 1 670 234 5678 |
| UK, Europe & most countries | 00 1 670 234 5678 |
| Australia | 0011 1 670 234 5678 |
| Inside Northern Mariana Islands | (670) 234-5678 |
Inside Northern Mariana Islands, numbers are written with the trunk prefix 1 (for example (670) 234-5678). Drop that 1 when you dial from abroad.
Northern Mariana Islands phone number format
A sample mobile number in Northern Mariana Islands is written +1 670 234 5678 internationally, (670) 234-5678 locally, and +16702345678 in the E.164 format that apps and websites store. Numbers are 10 digits long after the country code.
Not sure where a number is from? Paste it into our free phone number lookup to see the country, line type and correct format.
Calling abroad from Northern Mariana Islands
To call another country from a Northern Mariana Islands landline, start with the exit code 011, then the destination country code. On a mobile phone, holding 0 to type + works everywhere and replaces the exit code.
Other places that use +1
The +1 code is shared by 25 countries and territories. The first digits after the code identify each one: Antigua & Barbuda, Anguilla, American Samoa, Barbados, Bermuda, Bahamas, Canada, Dominica, Dominican Republic, Grenada, Guam, Jamaica, St. Kitts & Nevis, Cayman Islands, St. Lucia, Montserrat, Puerto Rico, Sint Maarten, Turks & Caicos Islands, Trinidad & Tobago, United States, St. Vincent & Grenadines, British Virgin Islands, U.S. Virgin Islands.
Missed call from +1?
If you don’t know anyone in Northern Mariana Islands, be careful with short missed calls from international numbers. “One-ring” scams hope you call back a premium-rate line. Don’t return the call, don’t share codes sent by SMS, and block the number if it keeps calling. A genuine contact will usually leave a message or text.
Frequently asked questions
Which country uses the +1 code?
+1 is the calling code of Northern Mariana Islands. It is shared with Antigua & Barbuda, Anguilla, American Samoa, Barbados, Bermuda, Bahamas, Canada, Dominica and others; the digits after +1 tell them apart.
How do I call Northern Mariana Islands from the United States?
Dial 011 (the US exit code), then 1, then the local number without the leading 1. From a mobile phone you can simply type +1 670 234 5678.
How many digits are in a Northern Mariana Islands phone number?
National numbers in Northern Mariana Islands are 10 digits long after the +1 country code. A typical mobile number looks like +1 670 234 5678.
Can I find the location of a +1 number?
Not from the number alone. Enter the number in AI Family Locator and send a location request. Live GPS location appears only after the owner installs the app and approves sharing. A number lookup shows only numbering details, not a current location.