Grand Ridge, Illinois Area Code

Grand Ridge, IL is officially utilizing an area code overlay in which area codes 779 and 815 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.

In addition to Grand Ridge, IL area code information read more about area codes 779 and 815 details and Illinois area codes.

Grand Ridge, IL is located in La Salle County and observes the Central Time Zone.
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