Area Code 304-313 located in MIDDLEBOURNE, TYLER, WV, more detail is as below. Place NPA (Numbering Plan Area) : 304 NXX (Local Number Prefix) : 313 City : MIDDLEBOURNE County : TYLER State : WV (West Virginia) NXX Use Type : Landline NXX Intro Version : 2000-08-20 FIPS (Federal Information Processing Standards) : 54095 LATA (Local Access Transport Area) : 256 Rate Center : MIDDLEBORN ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 26149 Other Information NPANXX : 304313 County Population : 0 Switch CLLI (Common Language Location Identifier) : WLNGWVBGDS0 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : GATEWAY TELECOM LLC DBA STRATUS WAVE COMM LLC WV OCN (Operating Company Number) : 2704 Coverage Area Name : MIDDLEBOURNE Latitude : 39.4919 Longitude : -80.9084 ‹ previous : 304-312 next › : 304-314 Telephone Number List 304-313-0000 ~ 304-313-9999