Area Code 276-579 located in TROUTDALE, GRAYSON, VA, more detail is as below. Place NPA (Numbering Plan Area) : 276 NXX (Local Number Prefix) : 579 City : TROUTDALE County : GRAYSON State : VA (Virginia) NXX Use Type : Landline NXX Intro Version : 2001-10-31 FIPS (Federal Information Processing Standards) : 51077 LATA (Local Access Transport Area) : 956 Rate Center : MOUTHWILSN ZIP Code Count : 154 ZIP Code Frequency : 20 ZIP Code : 24378 Other Information NPANXX : 276579 County Population : 0 Switch CLLI (Common Language Location Identifier) : MTWLVAXARS0 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : UNITED TELEPHONE-SOUTHEAST-VA DBA CENTURYLINK-VA OCN (Operating Company Number) : 4511 Coverage Area Name : MOUTH OF WILSON Latitude : 36.5985 Longitude : -81.3430 ‹ previous : 276-578 next › : 276-579 Telephone Number List 276-579-0000 ~ 276-579-9999