Area Code 256-431 located in ATHENS, LIMESTONE, AL, more detail is as below. Place NPA (Numbering Plan Area) : 256 NXX (Local Number Prefix) : 431 City : ATHENS County : LIMESTONE State : AL (Alabama) NXX Use Type : Wireless NXX Intro Version : 1998-08-14 FIPS (Federal Information Processing Standards) : 01083 LATA (Local Access Transport Area) : 477 Rate Center : ATHENS ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 35611 Other Information NPANXX : 256431 County Population : 0 Switch CLLI (Common Language Location Identifier) : HNVIALODCM1 MSA CBSA (Core Based Statistical Area) : Huntsville, AL MSA CBSA Code (Core Based Statistical Area) : 26620 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : NEW CINGULAR WIRELESS PCS, LLC - GA OCN (Operating Company Number) : 6214 Coverage Area Name : ATHENS Latitude : 34.8096 Longitude : -86.9776 ‹ previous : 256-430 next › : 256-432 Telephone Number List 256-431-0000 ~ 256-431-9999