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NANPA area code map of Illinois.
Illinois Area Code Map. Illinois currently utilizes 17 area codes. When first established by AT&T and the Bell System in 1947, 217 covered central Illinois, 312 covered the Chicago metropolitan area, 618 covered southern Illinois including East St. Louis and Carbondale, and 815 covered northern Illinois except Chicago and Quad Cities.
Illinois. 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. The first table below shows the most populated cities in Illinois with the area codes listed next to them.
Illinois area codes map gives information about all the area codes of Illinois state along with their counties list.
Related Maps and Data: Illinois Airports. Illinois Area Codes. Illinois Colleges and Universities. Illinois Congressional Districts Map. Illinois Metropolitan/Micropolitan Statistical Areas. Illinois Military Bases. Illinois Power Plants. Illinois Regional Market Areas.
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 code map. View the complete list of all area codes in Illinois.
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:
To find phone numbers, area code information, and area code maps, see our White Pages.
Illinois is currently using seventeen area codes. Illinois currently utilizes nine area code overlay plans, often called an overlay complex. Illinois originally had four area codes, 217,312,618 and 815, when the numbering system was established in 1947.