815 Rate Centers & Exchanges

27 rate centers · Illinois · Central Time

A rate center is the geographic unit used by phone carriers to determine local calling areas and billing. Each rate center has a specific name and set of NXX exchanges (the 3-digit prefix after the area code) assigned to it. The map below shows the 27 rate centers within area code 815.

Rate Center Locations

27 centers in area code 815

All Rate Centers in Area Code 815

Rate Center
Bureau
Cherry Valley
Cornell
Dixon
Elizabeth
Elwood
Gardner
Harvard
Joliet
La Moille
La Salle
Leaf River
Lockport
Manhattan
Marseilles
McHenry
Minooka
Morrison
New Lenox
Ottawa
Poplar Grove
Rock Cut
Rockford
Sterling
Stockton
Sublette
Woodstock
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