NPA-NXX - 312-817
This is the 312-817 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 312-817 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 312-817 subcode.
Looking for a different number? Follow a link below to see our recently active.
832-486-3214 434-238-4521 530-451-7903 936-582-9152 781-236-1047863-605-1019 240-753-2246 972-947-1397 720-785-6714 715-763-1279