NPA-NXX - 947-428

This is the 947-428 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. 947
3. 947-428

The 947-428 subcode mainly covers Ortonville in Oakland county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Michigan state. Many of the numbers in this subcode are Cellular (Dedicated) registered to Verizon Wireless. We hear they employ a large number of people in the Michigan office.
Recently there have been an increase in reported calls, we've had over 1202362 comments across our systems for the 947-428 subcode.