Area Code 312
Chicago, Illinois - Covers 162K phone records in our database
312
Chicago
Illinois
162K
About Area Code 312
Area code 312 is a telephone area code serving Chicago and surrounding areas in Illinois. Our database contains 162K phone records associated with this area code.
Area code 312 covers the following areas:
| City | State | Records |
|---|---|---|
| Chicago | Illinois | 162K |
| Freedom | Wisconsin | 108 |
How to Use Area Code 312
To call a phone number with area code 312, dial 1-312-XXX-XXXX from within the United States. For international calls to this area code, dial your country's exit code followed by 1-312 and the 7-digit local number.
If you've received an unknown call from area code 312, you can use our reverse phone lookup tool to identify the caller.