412 Area Code is part of 3 counties in the state of Pennsylvania. There are around 4 cities and 124 other places such as towns, cdps and villages in the 412 area code. Area code 412 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. state of Pennsylvania. Below you will find more info about Code and also zip codes, counties, cities and the post offices that belong to this Area Code.
Sources: North American Numbering Plan Administration (NANPA), telecom providers, and the U.S. Census Bureau.