AreaCodesPro Directory

312

Chicago,Illinois

Established

1947

State

Historical Rank

Original 86 Code

Did you know?

•Downtown Chicago.
•Original 86 Code.

Cities Served

ChicagoPrimary

West Chicago25,881 pop

Map showing 2 locations served.

Nearby Area Codes

Addison, Illinois

Aurora, Illinois

Bellwood, Illinois

Algonquin, Illinois