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- There are 13 active area codes in the state of Illinois.
www.wirefly.com/area-codes/illinois
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In the group of original North American area codes, established in 1947, all of the Chicago metropolitan area was part of numbering plan area 312, the rest of northern Illinois was 815, central Illinois was 217, and southern Illinois was 618.
Illinois Area Codes: List, Map, and Phone Lookup. There are 13 active area codes in the state of Illinois. Each of these area codes are listed below. There are two lists that Wirefly provides for the area codes in Illinois.
An Interactive Map of All Illinois Area Codes - September 2024.
708/464. Bourbonnais. 309/861. Galesburg Monmouth Burlington Macomb Keokuk. Quincy. Hannibal Jacksonville Alton.
View the complete list of all area codes in Illinois.
480 Area Code. More.. Illinois area codes map gives information about all the area codes of Illinois state along with their counties list.
Find Illinois area codes by city or lookup which cities belong to an area code. Illinois area codes includes 217, 309, 312, 618, 630, 708, 773, 815, 847.