Area Codes
| 770 | Georgia (Marietta, Cedartown, and central north Georgia (suburban metro Atlanta) outside Atlanta's Perimeter highway; overlaid by most of 678) | More information at: Area Code 770 Phone Number Blocks
| 770 | Georgia (Marietta, Cedartown, and central north Georgia (suburban metro Atlanta) outside Atlanta's Perimeter highway; overlaid by most of 678) | More information at: Area Code 770 Phone Number Blocks