Area Code 304-854 located in SYLVESTER, BOONE, WV, more detail is as below. Place NPA (Numbering Plan Area) : 304 NXX (Local Number Prefix) : 854 City : SYLVESTER County : BOONE State : WV (West Virginia) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 54005 LATA (Local Access Transport Area) : 254 Rate Center : WHITESVL ZIP Code Count : 222 ZIP Code Frequency : 11 ZIP Code : 25193 Other Information NPANXX : 304854 County Population : 0 Switch CLLI (Common Language Location Identifier) : WHVLWVFORS1 MSA CBSA (Core Based Statistical Area) : Charleston, WV MSA CBSA Code (Core Based Statistical Area) : 16620 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : FRONTIER WEST VIRGINIA INC. OCN (Operating Company Number) : 9214 Coverage Area Name : WHITESVILLE Latitude : 37.9767 Longitude : -81.5319 ‹ previous : 304-854 next › : 304-854 Telephone Number List 304-854-0000 ~ 304-854-9999