Area Code 336-620 located in WEST JEFFERSON, ASHE, NC, more detail is as below. Place NPA (Numbering Plan Area) : 336 NXX (Local Number Prefix) : 620 City : WEST JEFFERSON County : ASHE State : NC (North Carolina) NXX Use Type : Wireless NXX Intro Version : 2006-02-16 FIPS (Federal Information Processing Standards) : 37009 LATA (Local Access Transport Area) : 424 Rate Center : BALDWIN ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 28694 Other Information NPANXX : 336620 County Population : 0 Switch CLLI (Common Language Location Identifier) : ELKNNCXA5MD Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : NORTH CAROLINA RSA 3 CELL TEL CO DBA CAROLINA WEST OCN (Operating Company Number) : 5932 Coverage Area Name : BALDWIN Latitude : 36.3332 Longitude : -81.5398 ‹ previous : 336-619 next › : 336-621 Telephone Number List 336-620-0000 ~ 336-620-9999