Rosemont, Illinois Area Code
Rosemont, 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 Rosemont, IL area code information read more about area codes 224 and 847 details and Illinois area codes.
Rosemont, IL is located in Cook County and observes the Central Time Zone.
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