Prefix 404-600 — Atlanta, GA

NANPA CO code assignment, current as of July 28, 2026.

Area code
404
Prefix (NXX)
600
Rate center
Atlanta
State
Georgia
Time zone
Eastern
Code holder
O1 COMMUNICATIONS EAST, LLC - GA
OCN
844G
Pooled
Yes (thousands-block pooling)
Assigned
2012-11-30
LATA
438

Numbers in the 404-600 prefix are registered to the Atlanta rate center in GA, inside area code 404. The prefix is the second block of a ten-digit US number (404-600-XXXX) and pins the number to a billing locality.

Code-holder of record: O1 COMMUNICATIONS EAST, LLC - GA (OCN 844G), assigned November 30, 2012. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 404-600 numbers may be served by different companies.

The rate center lies in the Atlanta-Sandy Springs-Roswell, GA Metropolitan Statistical Area. The serving LATA is 438. Local time follows the Eastern zone.

Spoofing means this prefix on your screen doesn't guarantee a Atlanta caller. Verify independently before trusting a request for money or data.

Neighboring prefixes

Prefixes adjacent to 404-600
PrefixRate centerCode holder
404-597 Atlanta POWERTEL ATLANTA LICENSES, INC.
404-598 Atlanta BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL
404-599 Atlanta POWERTEL ATLANTA LICENSES, INC.
404-601 Atlanta MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA
404-602 Atlanta BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL
404-603 Atlanta BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL

FAQ

Where is 404-600 located?

The prefix is assigned to the Atlanta rate center in GA, area code 404. It is part of the Atlanta-Sandy Springs-Roswell, GA Metropolitan Statistical Area.

Which company owns 404-600 numbers?

O1 COMMUNICATIONS EAST, LLC - GA holds the code, but the prefix is pooled — individual thousands-blocks can be assigned to other carriers, and numbers may be ported to any provider.

Is a call from 404-600 safe to answer?

The prefix itself says nothing about the caller. Legitimate Atlanta businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.