NPA-NXX - 201-323

This is the 201-323 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. 201
3. 201-323

The 201-323 subcode mainly covers Morristown in Morris county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of New Jersey state. Many of the numbers in this subcode are Cellular (Dedicated) registered to At&t Mobility. We hear they employ a large number of people in the New Jersey office.
Recently there have been an increase in reported calls, we've had over 492276 comments across our systems for the 201-323 subcode.