Area Code 336-657 located in SPARTA, ALLEGHANY, NC, more detail is as below. Place NPA (Numbering Plan Area) : 336 NXX (Local Number Prefix) : 657 City : SPARTA County : ALLEGHANY State : NC (North Carolina) NXX Use Type : Landline NXX Intro Version : 1998-01-25 FIPS (Federal Information Processing Standards) : 37005 LATA (Local Access Transport Area) : 424 Rate Center : GLADECREEK ZIP Code Count : 46 ZIP Code Frequency : 5 ZIP Code : 28675 Other Information NPANXX : 336657 County Population : 0 Switch CLLI (Common Language Location Identifier) : GLCKNCXA657 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : SKYLINE TELEPHONE MEMBERSHIP CORP. OCN (Operating Company Number) : 0501 Coverage Area Name : ENNICE Latitude : 36.5014 Longitude : -80.9753 ‹ previous : 336-657 next › : 336-657 Telephone Number List 336-657-0000 ~ 336-657-9999