404 Area Code
Atlanta (core city), Georgia
Area code 404 is located in Atlanta (core city), Georgia. It covers Atlanta, Decatur, and surrounding areas in the Eastern time zone (UTC-5). Administered by NANPA.
Where is area code 404?
Area code 404 is located in Atlanta (core city), Georgia. It covers Atlanta, Decatur, and surrounding areas in the Eastern time zone (UTC-5).
Area code 404 is overlaid by area code 678. Both codes serve the same geographic region and require 10-digit dialing for local calls.
Cities Covered by Area Code 404
Area code 404 primarily serves the Atlanta (core city) area of Georgia. The exact coverage includes Atlanta, Decatur, and East Point, along with surrounding communities and suburbs.
Time Zone
Eastern Time — UTC-5
Area code 404 operates in the Eastern Time Zone. When calling 404 numbers from a different time zone, be sure to account for the time difference to reach people during business hours.
About Area Code 404
Area code 404 was introduced in 1947 as a geographic area code serving Atlanta (core city), Georgia. As demand for phone numbers grew, overlay code 678 was added to the same region, requiring 10-digit dialing for local calls. Area codes are administered by NANPA (North American Numbering Plan Administration), the organization responsible for managing phone number resources in the US and Canada.