Area Code 540-474 located in MONTEREY, HIGHLAND, VA, more detail is as below. Place NPA (Numbering Plan Area) : 540 NXX (Local Number Prefix) : 474 City : MONTEREY County : HIGHLAND State : VA (Virginia) NXX Use Type : Landline NXX Intro Version : 1995-07-04 FIPS (Federal Information Processing Standards) : 51091 LATA (Local Access Transport Area) : 244 Rate Center : BLUE GRASS ZIP Code Count : 144 ZIP Code Frequency : 48 ZIP Code : 24465 Other Information NPANXX : 540474 County Population : 0 Switch CLLI (Common Language Location Identifier) : BLUGVAXARS0 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : HIGHLAND TELEPHONE COOPERATIVE OCN (Operating Company Number) : 0237 Coverage Area Name : BLUE GRASS Latitude : 38.4998 Longitude : -79.5415 ‹ previous : 540-473 next › : 540-474 Telephone Number List 540-474-0000 ~ 540-474-9999