What is 513 area code?

The 513 area code is a telephone area code in the North American Numbering Plan (NANP) that serves southwestern Ohio, including the city of Cincinnati and its surrounding areas. Established in 1947, 513 is one of the original area codes. The region covered by the 513 area code includes not only Cincinnati, but also several nearby communities such as Hamilton, Middletown, and parts of Butler, Warren, and Clermont counties.

The Cincinnati metropolitan area is known for its diverse economy, cultural institutions, and historic architecture. 513 is surrounded by the 937 area code to the north and 859 across the river in Northern Kentucky.

Due to the increasing demand for phone numbers, an overlay area code, 283, was added in March 2020 to serve the same geographic region as 513. With the overlay system, new numbers can be issued with the 283 area code, and ten-digit dialing became necessary for local calls within the area.