Area Code 404-343 located in ATLANTA, COBB, GA, more detail is as below. Place NPA (Numbering Plan Area) : 404 NXX (Local Number Prefix) : 343 City : ATLANTA County : COBB State : GA (Georgia) NXX Use Type : Landline NXX Intro Version : 2000-01-14 FIPS (Federal Information Processing Standards) : 13067 LATA (Local Access Transport Area) : 438 Rate Center : ATLANTA ZIP Code Count : 3 ZIP Code Frequency : 14 ZIP Code : 30339 Other Information NPANXX : 404343 County Population : 0 Switch CLLI (Common Language Location Identifier) : SNMTGAASDS0 MSA CBSA (Core Based Statistical Area) : Atlanta-Sandy Springs-Marietta, GA MSA CBSA Code (Core Based Statistical Area) : 12060 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : COMCAST PHONE OF GEORGIA, LLC - GA OCN (Operating Company Number) : 7170 Coverage Area Name : STONE MOUNTAIN Latitude : 33.8221 Longitude : -84.2003 ‹ previous : 404-343 next › : 404-343 Telephone Number List 404-343-0000 ~ 404-343-9999