Coal valley Area Code

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Coal valley, IL area code

Coal valley, IL is served by area code 309. This area code was initially assigned on 01-JAN-57 and has been in continuous service since 01-JAN-57, supporting the city's growing communication needs over the years.

The area code 309 is part of an overlay complex (309/861), which serves the same geographic region. This means that multiple area codes are used in the same area to accommodate the increasing demand for phone numbers.

City Name Coal valley, IL
Area Code 309
Overlay Complex 309/861
State Illinois
Country United State
Time Zone Central Standard Time (CST)
Code Type General Purpose Code
In Service Yes
Assignment Date 01-JAN-57
In Service Date 01-JAN-57
Coal valley, IL area code