Area Code 423-999 located in ATHENS, MCMINN, TN, more detail is as below. Place NPA (Numbering Plan Area) : 423 NXX (Local Number Prefix) : 999 City : ATHENS County : MCMINN State : TN (Tennessee) NXX Use Type : Wireless NXX Intro Version : 3/30/2011 FIPS (Federal Information Processing Standards) : 47107 LATA (Local Access Transport Area) : 474 Rate Center : ATHENS ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 37303 Other Information NPANXX : 423999 County Population : 0 MSA CBSA (Core Based Statistical Area) : Athens, TN MSA CBSA Code (Core Based Statistical Area) : 11940 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : POWERTEL NASHVILLE LICENSES, INC. OCN (Operating Company Number) : 7476 Coverage Area Name : ATHENS Latitude : 35.4520 Longitude : -84.6009 ‹ previous : 423-994 next › : 424-200 Telephone Number List 423-999-0000 ~ 423-999-9999