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Area code 404

Area code 404 Atlanta, Georgia

Area code 404 is one of the original 1947 area codes, in Georgia, with numbers assigned in Atlanta. It’s 12:11 AM there now.

State
Georgia10 area codes in Georgia
Time zone
Eastern12:11 AM there now
Exchanges
7841 place
Overlay
470, 678 and 943Same area, 10-digit dialing
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Where area code 404 is

Numbers in 404 are assigned to 1 place in 2 counties: DeKalb County and Fulton County.

Atlanta holds most of them: 100% of the exchanges.

  • Atlanta781

Phone companies in 404

784 blocks of numbers in 404 are held by 26 phone companies. The most belong to AT&T (292), T-Mobile (151) and AT&T Mobility (90).

A mix: about 42% wireless, 39% local phone and cable and 18% other carriers, including internet phone services.

A block’s holder is the company it was first assigned to; numbers can move to other carriers since.

History and overlays

404 has been in service since 1947, when the first North American area codes were set up.

470 (since 2010), 678 (since 1998) and 943 (since 2022) share the same area, so a new number there can get any of these codes and local calls are dialed with all 10 digits.

22 new exchanges were assigned since 2021, the latest in May 2025.

Calling 404

It’s 12:11 AM Eastern time in 404 right now.

From elsewhere in the U.S., dial 1, 404 and the 7-digit number; inside the area, all 10 digits too.

Nearby area codes

Georgia has 10 area codes: 229, 404, 470, 478, 678, 706, 762, 770, 912 and 943.

From the North American Numbering Plan Administrator’s area code and exchange records (10/22/2026) and U.S. Census place and county names. Places and companies are where number blocks were assigned, not where anyone lives or which carrier a number uses today.

Map of the 404 area code

Map of the 404 area code around Atlanta, Georgia.

Interactive map © OpenStreetMap contributors

Cities on the map

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Questions about 404

Where is area code 404?

In Georgia, covering Atlanta across 2 counties.

What time zone is 404 in?

Eastern time. It was 12:11 AM there when this page loaded.

Is 404 an overlay?

Yes. 470, 678 and 943 serve the same area, so dial all 10 digits for local calls.

Which phone companies have 404 numbers?

26 companies hold blocks; the most belong to AT&T, T-Mobile and AT&T Mobility. About 42% of blocks are wireless.

Is 404 running out of numbers?

Not on record. 22 new exchanges have been assigned since 2021.