Area Code 336-307 located in GREENSBORO, GUILFORD, NC, more detail is as below. Place NPA (Numbering Plan Area) : 336 NXX (Local Number Prefix) : 307 City : GREENSBORO County : GUILFORD State : NC (North Carolina) NXX Use Type : Landline NXX Intro Version : 1999-07-22 FIPS (Federal Information Processing Standards) : 37081 LATA (Local Access Transport Area) : 424 Rate Center : HIGH POINT ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 27401 Other Information NPANXX : 336307 County Population : 0 Switch CLLI (Common Language Location Identifier) : GNBONCCKW30 MSA CBSA (Core Based Statistical Area) : Greensboro-High Point, NC MSA CBSA Code (Core Based Statistical Area) : 24660 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : MADISON RIVER COMM. LLC DBA CENTURYLINK - NC OCN (Operating Company Number) : 4809 Coverage Area Name : GREENSBORO Latitude : 36.0262 Longitude : -79.7923 ‹ previous : 336-306 next › : 336-307 Telephone Number List 336-307-0000 ~ 336-307-9999