NPA-NXX - 610-403

This is the 610-403 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. 610
3. 610-403

The 610-403 subcode mainly covers Catasauqua in Lehigh county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Pennsylvania state. Many of the numbers in this subcode are Regular Landline registered to Service Electric Telephone Company. We hear they employ a large number of people in the Pennsylvania office.
Recently there have been an increase in reported calls, we've had over 349497 comments across our systems for the 610-403 subcode.