NPA-NXX - 670-858

This is the 670-858 subcode (NPA-NXX) prefix page. Follow a prefix to find the number you are looking for. We divide our pages up to make them more user friendly to navigate!

1. Area Codes
2. 670
3. 670-858

The 670-858 subcode mainly covers Saipan in Saipan county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Northern Mariana Islands state. Many of the numbers in this subcode are Cellular (Dedicated) registered to Wave Runner. We hear they employ a large number of people in the Northern Mariana Islands office.
Recently there have been an increase in reported calls, we've had over -1 comments across our systems for the 670-858 subcode.