Area Code 540-400 located in ROANOKE, ROANOKE CITY, VA, more detail is as below. Place NPA (Numbering Plan Area) : 540 NXX (Local Number Prefix) : 400 City : ROANOKE County : ROANOKE CITY State : VA (Virginia) NXX Use Type : Landline NXX Intro Version : 2003-08-31 FIPS (Federal Information Processing Standards) : 51770 LATA (Local Access Transport Area) : 244 Rate Center : ROANOKE ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 24011 Other Information NPANXX : 540400 County Population : 0 Switch CLLI (Common Language Location Identifier) : RONLVA31GT0 MSA CBSA (Core Based Statistical Area) : Roanoke, VA MSA CBSA Code (Core Based Statistical Area) : 40220 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : COX VIRGINIA TELCOM, INC. - VA OCN (Operating Company Number) : 7189 Coverage Area Name : ROANOKE Latitude : 37.2666 Longitude : -79.9475 ‹ previous : 540-400 next › : 540-402 Telephone Number List 540-400-0000 ~ 540-400-9999