Area Code 276-403 located in MARTINSVILLE, MARTINSVILLE CITY, VA, more detail is as below. Place NPA (Numbering Plan Area) : 276 NXX (Local Number Prefix) : 403 City : MARTINSVILLE County : MARTINSVILLE CITY State : VA (Virginia) NXX Use Type : Landline NXX Intro Version : 2002-10-25 FIPS (Federal Information Processing Standards) : 51690 LATA (Local Access Transport Area) : 244 Rate Center : MARTINSVL ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 24112 Other Information NPANXX : 276403 County Population : 0 Switch CLLI (Common Language Location Identifier) : MTVIVAXA5MD MSA CBSA (Core Based Statistical Area) : Martinsville, VA MSA CBSA Code (Core Based Statistical Area) : 32300 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : LUMOS NETWORKS INC. - VA OCN (Operating Company Number) : 7849 Coverage Area Name : MARTINSVILLE Latitude : 36.6904 Longitude : -79.8757 ‹ previous : 276-398 next › : 276-415 Telephone Number List 276-403-0000 ~ 276-403-9999