Area code 872 serves Chicago and has been in service since November 07, 2009.
The area code covers the entire city of Chicago, which is the third-most populous city in the United States. It is located in Cook County, Illinois and is an economically important region within the country.
Illinois Counties within Area Code 872:
Illinois Major Cities within Area Code 872:
Area Code 872 Time Zone?
Central time zone is also known as America/Chicago.
Go here to see the complete list of United States Area Codes.