NPA-NXX - 312-580
This is the 312-580 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 312-580 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 312-580 subcode.
Looking for a different number? Follow a link below to see our recently active.
541-359-5886 626-569-7501 304-732-4872 609-849-2579 918-298-2527210-937-4831 580-890-4239 214-666-2892 978-770-3624 425-312-6516