Humboldt, Illinois Area Code
Humboldt, 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 Humboldt, IL area code information read more about area codes 217 and 447 details and Illinois area codes.
Humboldt, IL is located in Coles County and observes the Central Time Zone.
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