NPA-NXX - 630-420
This is the 630-420 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 630-420 subcode mainly covers Naperville in Dupage 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 916924 comments across our systems for the 630-420 subcode.
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718-802-4437 469-657-6891 856-247-2504 972-734-8571 443-806-2319646-781-2834 904-228-6965 951-220-5368 518-312-8410 231-928-7039