678 Area Code is part of 26 counties in the state of Georgia. There are around 88 cities and 18 other places such as towns, cdps and villages in the 678 area code. Area code 678 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. state of Georgia. 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.