NPA-NXX - 435-400

This is the 435-400 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. 435
3. 435-400

The 435-400 subcode mainly covers Coalville in Summit county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Utah state. Many of the numbers in this subcode are Cellular (Dedicated) registered to All West Wireless. We hear they employ a large number of people in the Utah office.
Recently there have been an increase in reported calls, we've had over 36324 comments across our systems for the 435-400 subcode.