Mason City, Illinois Area Code

Mason City, IL is officially utilizing an area code overlay in which area codes 217 and 447 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.

In addition to Mason City, IL area code information read more about area codes 217 and 447 details and Illinois area codes.

Mason City, IL is located in Mason County and observes the Central Time Zone.
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