NPA-NXX - 312-583
This is the 312-583 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 312-583 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 312-583 subcode.
Looking for a different number? Follow a link below to see our recently active.
870-820-9160 650-720-5452 586-225-1393 530-406-3611 571-227-8907336-727-8195 831-393-9275 832-751-4455 706-883-9813 256-361-6201