Area code 678 is a Georgia area code that covers Atlanta and its surrounding areas. Area code 678 overlays part of the area codes of 770, 404 and 470.
Georgia has area codes of 229, 404, 470, 478, 678, 706, 762, 770, 912.
The following map shows the coverage of 678 area code. The coverage area is shown in green.
Area code map of the entire U.S.