Country calling code

Northern Mariana Islands country code: +1 670

Q: What is the country code of Northern Mariana Islands?

The country calling code of Northern Mariana Islands is +1 670. Northern Mariana Islands is part of the North American Numbering Plan, so its numbers start with +1 followed by the area code 670.

To call Northern Mariana Islands from another country, dial your exit code, then 1 670 (country code 1 and area code 670), then the seven-digit local number. A Northern Mariana Islands mobile number dialled from abroad looks like +1 670-234-5678.

Country code: +1 670
Exit code (IDD): 011
Trunk prefix: 1
Mobile number length: 10 digits
ISO country code: MP
Time zone: UTC+10
Capital: Saipan
Currency: USD

How to call Northern Mariana Islands

1
Dial the exit code of the country you are in. 011 in the US and Canada, 00 in the UK and most of Europe, 0011 in Australia. On a mobile phone, press and hold 0 to type + instead.
2
Dial 1, the country code of Northern Mariana Islands, followed by the area code 670.
3
Dial the local number without the leading 1. Numbers written for callers inside Northern Mariana Islands start with the trunk prefix 1; it is dropped when you call from abroad.

Calling from	You dial
Inside Northern Mariana Islands	(670) 234-5678
Any mobile phone	+1 670-234-5678
United States or Canada	011 1 670-234-5678
UK, Germany, India and most countries	00 1 670-234-5678
Australia	0011 1 670-234-5678
Japan	010 1 670-234-5678

Example with the Northern Mariana Islands sample number +16702345678.

Calling abroad from Northern Mariana Islands

Dial the exit code 011, then the country code and the number. To call the US from Northern Mariana Islands: 011 1 + area code + number.

Northern Mariana Islands phone number format

Example numbers for each number type, written the way they are dialled inside Northern Mariana Islands and from abroad. The length counts the digits after the country code.

Type	National format	International format	E.164	Digits
Mobile	(670) 234-5678	+1 670-234-5678	+16702345678	10
Landline	(670) 234-5678	+1 670-234-5678	+16702345678	10
Toll-free	(800) 212-3456	+1 800-212-3456	+18002123456	10
Premium rate	(900) 212-3456	+1 900-212-3456	+19002123456	10
Personal number	(500) 234-5678	+1 500-234-5678	+15002345678	10

Northern Mariana Islands country code: FAQ

What is the country code of Northern Mariana Islands?

The country calling code of Northern Mariana Islands is +1 670. Northern Mariana Islands is part of the North American Numbering Plan, so its numbers start with +1 followed by the area code 670.

How do I call Northern Mariana Islands from abroad?

Dial your exit code (011 from the US and Canada, 00 from most of Europe, or simply + on a mobile phone), then 1, then the local number without the leading 1. Example: +1 670-234-5678.

What is the exit code for international calls from Northern Mariana Islands?

To call another country from Northern Mariana Islands, dial 011, then the other country's code and number. On mobile phones you can always use + instead.

How many digits does a Northern Mariana Islands mobile number have?

Mobile numbers in Northern Mariana Islands have 10 digits after the country code (without the trunk prefix), for example +1 670-234-5678.

How can I check if a Northern Mariana Islands phone number is valid?

Enter the number in the checker on this page. It checks the length and number ranges of Northern Mariana Islands offline. To verify numbers in bulk or from your own software, use the numlookupapi phone validation API.

Phone number API

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GET https://api.numlookupapi.com/v1/validate/+16702345678

{
  "valid": true,
  "international_format": "+16702345678",
  "country_prefix": "+1",
  "country_code": "MP",
  "line_type": "mobile",
  "carrier": "…",
  "e164_format": "+16702345678",
  "national_format": "(670) 234-5678"
}