Area Code 336-230 located in GREENSBORO, GUILFORD, NC, more detail is as below. Place NPA (Numbering Plan Area) : 336 NXX (Local Number Prefix) : 230 City : GREENSBORO County : GUILFORD State : NC (North Carolina) NXX Use Type : Landline NXX Intro Version : 1998-01-25 FIPS (Federal Information Processing Standards) : 37081 LATA (Local Access Transport Area) : 424 Rate Center : GREENSBORO ZIP Code Count : 131 ZIP Code Frequency : 14 ZIP Code : 27405 Other Information NPANXX : 336230 County Population : 0 Switch CLLI (Common Language Location Identifier) : GNBONCEU33G 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 : BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL OCN (Operating Company Number) : 9417 Coverage Area Name : GREENSBORO Latitude : 36.0696 Longitude : -79.7919 ‹ previous : 336-230 next › : 336-230 Telephone Number List 336-230-0000 ~ 336-230-9999