What is what area code is 814?

The area code 814 is a North American telephone area code serving 27 counties in central and northwestern Pennsylvania. It was created on February 1, 1947 as one of the original area codes established in Pennsylvania. The 814 area code covers cities such as Altoona, Erie, Johnstown, State College, and Williamsport. It was the only area code serving the region until the 582 area code was added as an overlay in 2017.