NPA-NXX - 312-542

This is the 312-542 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 312-542 subcode mainly covers Chicago in Cook county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Illinois state. Many of the numbers in this subcode are Regular Landline registered to At&t Illinois. We hear they employ a large number of people in the Illinois office.
Recently there have been an increase in reported calls, we've had over 5194675 comments across our systems for the 312-542 subcode.

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

604-436-4385 669-252-6127 443-954-5058 229-619-8593 402-625-7008
631-456-3269 410-469-7540 508-897-4878 337-594-6549 415-236-1466