Harwood Heights, Illinois Area Code
Harwood Heights, IL is officially utilizing two area codes 773 and 872. Chicago, IL is officially utilizing an area code overlay in which area codes 773 and 872 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.
In addition to Harwood Heights, IL area code information read more about area codes 773 and 872 details and Illinois area codes.
Harwood Heights, IL is located in Cook County and observes the Central Time Zone.
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