Locations for Area Code - 678

Area code 678 is an overlay covering much of metro Atlanta, Georgia, alongside 404 and 770. Introduced in 1998, it supports the region’s rapid urban and suburban growth. Atlanta is a major hub for business, transportation, media, and civil rights history. Ten-digit dialing is mandatory. 678 is common for mobile and business lines and is part of the city’s identity as a sprawling, diverse, and economically vital Southern metropolis.