Area Codes in Illinois

Illinois has 15 area codes: 217, 224, 309, 312, 331, 447, 464, 618, 630, 708, 773, 779, 815, 847, 872.

217 covers Springfield / Champaign (Springfield, Champaign, Decatur). 224 covers Chicago North Suburbs Overlay (Evanston, Waukegan, Elgin). 309 covers Peoria / Quad Cities (Peoria, Bloomington, Rock Island). 312 covers Chicago Downtown (Chicago, Loop, Wicker Park). 331 covers DuPage County / Aurora Overlay (Aurora, Naperville, Wheaton). 447 covers Champaign Overlay (Champaign, Urbana, Rantoul). 464 covers Chicago South Suburbs Overlay (Chicago Heights, Harvey, Calumet City). 618 covers Southern Illinois (Belleville, Carbondale, East St. Louis). 630 covers DuPage County / Western Suburbs (Naperville, Aurora, Bolingbrook). 708 covers Chicago South Suburbs (Cicero, Oak Lawn, Orland Park). 773 covers Chicago Neighborhoods (Chicago, Hyde Park, Lincoln Park). 779 covers Rockford Area Overlay (Rockford, DeKalb, Elgin). 815 covers Rockford / Joliet / Northern Illinois (Rockford, Joliet, Aurora). 847 covers Chicago North Suburbs (Evanston, Arlington Heights, Waukegan). 872 covers Chicago Overlay (Chicago, Schaumburg, Cicero).

Illinois area codes cover Springfield, Champaign, Decatur, Evanston, Waukegan, Elgin, Peoria, Bloomington, Rock Island, Chicago, Loop, Wicker Park, and other cities.