NPA-NXX - 660-423

This is the 660-423 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. 660-423

The 660-423 subcode mainly covers Hurdland in Knox 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 4131 comments across our systems for the 660-423 subcode.