WHAT YOU NEED TO KNOW
Area code 404 serves the core of the Atlanta metro in Georgia, including Atlanta, Sandy Springs, Brookhaven, and Decatur. Established in 1947 as one of the original NANP codes, it now covers approximately 1.5 million residents within its geographic footprint and is the primary local code for the city of Atlanta itself.
- Population: ~6.2 million in the greater Atlanta metro
- Overlay: Overlay: 678 (added 1998), 470 (added 2015), 943 (added 2023)
- Dialing: 10-digit dialing required
- Source Type: Local geographic code
Geographic Coverage
Area code 404 covers the urban core of Atlanta and a cluster of close-in cities within Fulton and DeKalb counties. This includes Atlanta proper, Sandy Springs, Brookhaven, Dunwoody, College Park, East Point, Hapeville, Decatur, Avondale Estates, and Clarkston. The code does not extend into Atlanta's broader suburban ring, which is served by overlapping codes 678, 470, and 943. The 404 footprint is geographically compact but densely populated.
Population and Business Context
Atlanta is a major U.S. business hub, ranking among the top ten metropolitan economies in the country. Key industries within the 404 coverage area include finance, media and entertainment, logistics, technology, and healthcare. Atlanta is home to the busiest passenger airport in the world (Hartsfield-Jackson), multiple Fortune 500 headquarters, and a large concentration of corporate regional offices. The urban core served by 404 is a high-density commercial and residential market.
Area Code History
Area code 404 was assigned in 1947 as one of the original 86 North American Numbering Plan codes, making it among the oldest area codes in the United States. It originally covered the entire state of Georgia. As Georgia's population grew, the state was subdivided multiple times. Area code 770 was split off in 1995 to serve suburban Atlanta, and 678 was introduced as an overlay in 1998. Further overlays 470 and 943 were added to accommodate continued number demand in the region.
How to Dial
All calls within the 404 area code require 10-digit dialing, meaning you must dial the full area code plus the seven-digit local number even for calls within the same area code. This rule applies because 404, 678, 470, and 943 all share the same geographic overlay zone. When dialing from outside the United States, add the country code 1 before the 10-digit number. There are no special dialing requirements beyond the standard 10-digit format for local calls.
Need a 404 Number for Your Atlanta Business?
Businesses operating in the Atlanta metro can establish a local presence with a 404 area code number through Convirza. Convirza provisions trackable local numbers in any North American area code, including 404, so your business can appear local to Atlanta callers while routing calls to any team, office, or device you choose. Every call on your 404 number gets scored, recorded, and source-attributed using dynamic number insertion (DNI). You see exactly which campaigns, channels, or search terms drove each call. Routing rules let you send calls to different teams based on time of day, caller location, or campaign. No setup complexity, no manual call logs.
750+ customers · 25 years of call data