Illinois Area Codes
Updated August 5, 2020 |
Infoplease Staff
| Area codes | Selected cities |
|---|---|
| 217 | Springfield, Champaign |
| 224 | Evanston, Schaumburg |
| 309 | Peoria, Bloomington |
| 312, 773 | Chicago |
| 618 | Carbondale, East St. Louis |
| 630 | Aurora, Naperville |
| 708 | Chicago Heights, Cicero |
| 815 | Rockford, Joliet |
| 847 | Waukegan, Skokie |
Source: North American Numbering Plan Administration. Web: www.nanpa.com .
To find phone numbers, area code information, and area code maps, see our White Pages.
| Idaho Area Codes | Area Codes: United States, Canada, Caribbean | Indiana Area Codes |
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