Illinois Area Code Market Intelligence

8 governed markets currently carry IL as the dominant state signal.

217 / 447

Springfield, IL, Decatur, IL, Champaign, IL, Urbana, IL, Quincy, IL, Danville, IL, and additional communities

224 / 847

Chicago, IL, Waukegan, IL, Elgin, IL, Arlington Heights, IL, Palatine, IL, Des Plaines, IL, and additional communities

309 / 861

Peoria, IL, Bloomington, IL, Normal, IL, Pekin, IL, Galesburg, IL, Washington, IL, and additional communities

312 / 773 / 872

Chicago, IL, Cicero, IL, Skokie, IL, Oak Lawn, IL, Oak Park, IL, Park Ridge, IL, and additional communities

331 / 630

Aurora, IL, Naperville, IL, Wheaton, IL, Downers Grove, IL, Plainfield, IL, Lombard, IL, and additional communities

464 / 708

Chicago, IL, Orland Park, IL, Berwyn, IL, Cicero, IL, Chicago Heights, IL, Tinley Park, IL, and additional communities

618 / 730

Belleville, IL, Saint Louis, MO, O Fallon, IL, Granite City, IL, Edwardsville, IL, Collinsville, IL, and additional communities

779 / 815

Rockford, IL, Joliet, IL, Plainfield, IL, Crystal Lake, IL, Bolingbrook, IL, Dekalb, IL, and additional communities