NPA-NXX - 660-278

This is the 660-278 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. 660
3. 660-278

The 660-278 subcode mainly covers Steffenville in Lewis county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Missouri state. Many of the numbers in this subcode are Regular Landline registered to Mark Twain Rural Telephone Company. We hear they employ a large number of people in the Missouri office.
Recently there have been an increase in reported calls, we've had over 10211 comments across our systems for the 660-278 subcode.