Area Code 304-431 located in PRINCETON, MERCER, WV, more detail is as below. Place NPA (Numbering Plan Area) : 304 NXX (Local Number Prefix) : 431 City : PRINCETON County : MERCER State : WV (West Virginia) NXX Use Type : Landline NXX Intro Version : 1995-02-11 FIPS (Federal Information Processing Standards) : 54055 LATA (Local Access Transport Area) : 932 Rate Center : PRINCETON ZIP Code Count : 689 ZIP Code Frequency : 99 ZIP Code : 24740 Other Information NPANXX : 304431 County Population : 0 Switch CLLI (Common Language Location Identifier) : PRTNWVXARS1 MSA CBSA (Core Based Statistical Area) : Bluefield, WV-VA MSA CBSA Code (Core Based Statistical Area) : 14140 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : CITIZENS TELECOMMUNICATIONS CO OF WEST VIRGINIA OCN (Operating Company Number) : 0270 Coverage Area Name : PRINCETON Latitude : 37.3692 Longitude : -81.0997 ‹ previous : 304-430 next › : 304-432 Telephone Number List 304-431-0000 ~ 304-431-9999