NPA-NXX - 312-221
This is the 312-221 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 312-221 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 Miscellaneous registered to Sprint. 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 312-221 subcode.
Looking for a different number? Follow a link below to see our recently active.
832-802-7263 484-895-3580 804-887-9978 203-628-5677 715-501-2239503-413-8038 570-517-8857 620-238-1484 936-252-6738 317-292-5672