Georgia · Eastern Time
404 Area Code
Area code 404 is in Georgia, serving city of Atlanta and its close-in suburbs inside and near the Perimeter. It is in the Eastern Time zone. It shares its territory with overlay codes 470, 678 and 943, so 10-digit dialing is required.
Last updated October 1, 2026 · Source: NANPA
Where is the 404 area code?
404 is a Georgia area code covering city of Atlanta and its close-in suburbs inside and near the Perimeter. In the wider directory it sits in the South region.
Cities in the 404 area code
- Atlanta
- Decatur
- East Point
- College Park
- Brookhaven
- Hapeville
- Forest Park
- Avondale Estates
- Druid Hills
- Clarkston
Counties served by 404
Fulton County, DeKalb County and Clayton County.
404 overlay codes and dialing
The 404 territory is covered by an overlay of 4 area codes: 404, 470, 678, 943. All of them serve the same geographic area, and the original code is 404. Because more than one code covers the same ground, 10-digit dialing is mandatory — you must dial the area code for every local call. New phone lines may be assigned any of these codes.
History of the 404 area code
404 is one of the original area codes assigned in 1947, when AT&T and Bell Laboratories created the North American Numbering Plan and divided the country into the first 86 numbering plan areas. It has served the Atlanta area ever since, with 470, 678 and 943 later added as overlays to supply more numbers.
Is 404 a scam or spam risk?
404 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 404 number on your screen is no guarantee the caller is in Atlanta, GA or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Other Georgia area codes
Explore more
See every code in Georgia, compare codes across the South region, or view all Eastern Time codes. You can also browse the 4XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
404 area code FAQ
Where is the 404 area code?
The 404 area code is in Georgia, covering city of Atlanta and its close-in suburbs inside and near the Perimeter, in the South region.
What cities are in the 404 area code?
Cities in the 404 area code include Atlanta, Decatur, East Point, College Park, Brookhaven, Hapeville, Forest Park, Avondale Estates, Druid Hills and Clarkston.
What time zone is 404 in?
404 is in the Eastern Time zone.
What is the overlay for the 404 area code?
404 shares its territory with 470, 678 and 943. All 4 codes (404, 470, 678, 943) serve the same area, so 10-digit dialing is required for every call.
When did the 404 area code start?
404 went into service on January 1, 1947 as one of the original 1947 North American area codes.
Do I have to dial 10 digits for 404?
Yes. Because 404 is an overlay area, you must dial the full 10-digit number (area code + 7 digits) for every call.
Is 404 a toll-free or premium code?
No. 404 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.