Area Code 540-443 located in BLACKSBURG, MONTGOMERY, VA, more detail is as below. Place NPA (Numbering Plan Area) : 540 NXX (Local Number Prefix) : 443 City : BLACKSBURG County : MONTGOMERY State : VA (Virginia) NXX Use Type : Landline NXX Intro Version : 2000-08-20 FIPS (Federal Information Processing Standards) : 51121 LATA (Local Access Transport Area) : 244 Rate Center : BLACKSBURG ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 24061 Other Information NPANXX : 540443 County Population : 0 Switch CLLI (Common Language Location Identifier) : TRVLVAXA0MD MSA CBSA (Core Based Statistical Area) : Blacksburg-Christiansburg-Radford, VA MSA CBSA Code (Core Based Statistical Area) : 13980 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : LUMOS NETWORKS INC. OCN (Operating Company Number) : 7185 Coverage Area Name : BLACKSBURG Latitude : 37.2334 Longitude : -80.4175 ‹ previous : 540-442 next › : 540-444 Telephone Number List 540-443-0000 ~ 540-443-9999