NPA-NXX - 331-684

This is the 331-684 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!

1. Area Codes
2. 331
3. 331-684

The 331-684 subcode mainly covers Aurora in Kane 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 Wow! Business Solutions. 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 515269 comments across our systems for the 331-684 subcode.