464 Area Code
Chicago south suburbs (overlay), Illinois
Area code 464 is located in Chicago south suburbs (overlay), Illinois. It covers Harvey, Calumet City, and surrounding areas in the Central time zone (UTC-6). Administered by NANPA.
Where is area code 464?
Area code 464 is located in Chicago south suburbs (overlay), Illinois. It covers Harvey, Calumet City, and surrounding areas in the Central time zone (UTC-6).
Cities Covered by Area Code 464
Area code 464 primarily serves the Chicago south suburbs (overlay) area of Illinois. The exact coverage includes Harvey, Calumet City, and Oak Lawn, along with surrounding communities and suburbs.
Time Zone
Central Time — UTC-6
Area code 464 operates in the Central Time Zone. When calling 464 numbers from a different time zone, be sure to account for the time difference to reach people during business hours.
About Area Code 464
Area code 464 was introduced in 2022 as a geographic area code serving Chicago south suburbs (overlay), Illinois. It remains the primary area code for this region. Area codes are administered by NANPA (North American Numbering Plan Administration), the organization responsible for managing phone number resources in the US and Canada.