North Chicago, Illinois Area Code
North Chicago, IL is officially utilizing an area code overlay in which area codes 224 and 847 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.
In addition to North Chicago, IL area code information read more about area codes 224 and 847 details and Illinois area codes.
North Chicago, IL is located in Lake County and observes the Central Time Zone.
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