Area code 670
Area code 670 is a telephone area code in the North American Numbering Plan. It serves CNMI, the United States.
- 670area code
- USCNMI
- UScountry
- 1-Jul-97in service
How to dial a 670 number
From within the United States and Canada, dial 1, then 670, then the seven-digit number. From another country, dial your international access code, then +1 670 and the seven-digit number.
Frequently asked questions
Where is area code 670?
Area code 670 serves CNMI, the United States.
What is the country code for a 670 number?
Numbers with North American area codes use the country calling code +1.