Area Code 312

Area Code 312 is in Illinois and covers 18.22 square miles. Area Code 312 contains 14 non-unique postal area zip codes.
Area Code 312 Zipcodes
60605 Chicago, IL
60607 Chicago, IL
60601 Chicago, IL
60603 Chicago, IL
60604 Chicago, IL
60606 Chicago, IL
60610 Chicago, IL

Adjacent Area Codes:

Area Code 773

60611 Chicago, IL
60612 Chicago, IL
60616 Chicago, IL
60654 Chicago, IL
60661 Chicago, IL
60642 Chicago, IL
60602 Chicago, IL
data sources:
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