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Our area code lookup makes it easy to find area codes in Illinois. Includes area code listings of all Illinois area codes with corresponding cities.
This is a list of the area codes in the state of Illinois and its numbering plan areas in the North American Numbering Plan. All NPAs within Illinois.
Lookup area codes by state. View our Illinois area code information.
Illinois area codes map gives information about all the area codes of Illinois state along with their counties list.
There are two lists that Wirefly provides for the area codes in Illinois. The first table below shows the most populated cities in Illinois with the area codes listed next to them. The next table shows the all the Illinois state area codes by number with the names of the city they are used in.
Area codes by City – 971 cities. Get a full list of Illinois area codes. Check out the area’s map, the current time, and area codes listed by city.
Illinois Area Codes St. Louis Rockford Peoria Champaign Decatur East St. Louis Davenport Dubuque As of July 26, 2022 Hannibal Keokuk Burlington Bettendorf 773/872 Bloomington Effingham Harrisburg Paducah Carbondale Cape Girardeau Alton. Title: Telephone Illustrator Map.ai Created Date:
