NPA-NXX - 217-400

This is the 217-400 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. 217
3. 217-400

The 217-400 subcode mainly covers Springfield in Sangamon 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 North County Communications. 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 197465 comments across our systems for the 217-400 subcode.