NPA-NXX - 203-603

This is the 203-603 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!

The 203-603 subcode mainly covers New Haven in New Haven county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Connecticut state. Many of the numbers in this subcode are Mixed registered to At&t East. We hear they employ a large number of people in the Connecticut office.
Recently there have been an increase in reported calls, we've had over 862477 comments across our systems for the 203-603 subcode.

Looking for a different number? Follow a link below to see our recently active.

256-615-5395 732-275-5299 724-985-3606 571-246-2148 615-602-5179
267-435-4924 718-355-7758 769-236-2349 760-810-3201 989-282-8292