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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 217/447 : Central Illinois, including the region running west from the Illinois-Indiana border through Danville , Effingham , Champaign–Urbana , Decatur , Springfield , Quincy until Illinois ...
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.
To find information on a specific area code, use the area code lookup that makes it easy to find an area code by number and gives detailed information including city/state, timezone, and area code maps.
US Area Code. Illinois area codes map gives information about all the area codes of Illinois state along with their counties list.
708/464. Bourbonnais. 309/861. Galesburg Monmouth Burlington Macomb Keokuk. Quincy. Hannibal Jacksonville Alton.
US Area Codes By State. Location of all Area Codes in the US. To faciltiate the millions of phone users, the United States of America is divided into regions known as Area Codes, corresponding to particular geographic telephone dialing areas.
The following 12 pages are in this category, out of 12 total. This list may not reflect recent changes. List of Illinois area codes. 0–9. Area codes 217 and 447. Area codes 309 and 861.
