Area Code: 770

770 Area Code belongs to the state of Georgia. The following cities fall under this area code: Alpharetta, Atlanta, College Park, Douglasville, Duluth, Dunwoody, Forest Park, Gainesville, Griffin, Kennesaw, Lawrenceville, Mableton, Marietta, North Atlanta, Peachtree City, Redan, Roswell, Sandy Springs, Smyrna, Tucker. There have been a total of 23400 Numbers for this area code.