NPA-NXX - 312-850
This is the 312-850 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 312-850 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 312-850 subcode.
Looking for a different number? Follow a link below to see our recently active.
781-587-4521 718-407-9754 260-577-5679 813-317-5900 760-621-9906540-383-2122 561-993-3017 763-587-8290 862-926-9078 304-459-8572