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Illinois Area Codes

Area codes Selected cities
217Springfield, Champaign
224Evanston, Schaumburg
309Peoria, Bloomington
312, 773Chicago
618Carbondale, East St. Louis
630Aurora, Naperville
708Chicago Heights, Cicero
815Rockford, Joliet
847Waukegan, Skokie
Source: North American Numbering Plan Administration. Web: www.nanpa.com .

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