Area Code 312
The downtown Chicago area falls under the coverage map for area code 312. Area code 312 was one of the original area codes distributed in 1947.
The city of Chicago now has multiple area codes including 312. A few other Chicago area codes include 708, 773, 847 and 630.
Search Unlisted Phone Numbers & Cellular Phone Numbers! Do you need to research or reverse search an area code 312 landline or cell phone number? Click Here for a Powerful Reverse Search Tool.