779 Rate Centers & Exchanges
13 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 13 rate centers within area code 779.
Rate Center Locations
13 centers in area code 779All Rate Centers in Area Code 779
| Rate Center |
|---|
|
Cissna Park
|
|
Coal City
|
|
Crystal Lake
|
|
De Kalb
|
|
Donovan
|
|
Frankfort
|
|
Freeport
|
|
Joliet
|
|
Kankakee
|
|
Lockport
|
|
Momence
|
|
Monroe Center
|
|
Rockford
|