|Updated 21 November 2005||By Country Code||By Country Name||Other WTNG pages||Acknowledgements|
|Northern Mariana Islands (Commonwealth of)||+1 (670)|
Area Code: 3 digits Subscriber Number: 7 digits Trunk Prefix: 1? International Prefix: 011
A permissive dialling period continued until 1 July 1998, after which +670 was discontinued and +1 670 became mandatory.
Country code +670 was reassigned relatively quickly to East Timor.
See United States Pacific Islands section.