NPA-NXX - 312-450

This is the 312-450 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 312-450 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 Cellular (Dedicated) registered to At&t Mobility. 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 312-450 subcode.

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

928-247-4384 347-271-1737 718-307-9618 918-849-3875 607-342-3311
352-401-6638 440-637-6644 419-243-5695 805-586-5977 434-856-6289