Area Code 540-499 located in MONTEREY, HIGHLAND, VA, more detail is as below. Place NPA (Numbering Plan Area) : 540 NXX (Local Number Prefix) : 499 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 : MILL GAP ZIP Code Count : 122 ZIP Code Frequency : 99 ZIP Code : 24465 Other Information NPANXX : 540499 County Population : 0 Switch CLLI (Common Language Location Identifier) : MLGPVAXARS0 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : HIGHLAND TELEPHONE COOPERATIVE OCN (Operating Company Number) : 0237 Coverage Area Name : MILL GAP Latitude : 38.2895 Longitude : -79.7083 ‹ previous : 540-498 next › : 540-504 Telephone Number List 540-499-0000 ~ 540-499-9999