512 Area Code is part of 10 counties in the state of Texas. There are around 48 cities and 25 other places such as towns, cdps and villages in the 512 area code. Area code 512 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. state of Texas. 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.