Area Code 803-266 located in BLACKVILLE, BARNWELL, SC, more detail is as below. Place NPA (Numbering Plan Area) : 803 NXX (Local Number Prefix) : 266 City : BLACKVILLE County : BARNWELL State : SC (South Carolina) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 45011 LATA (Local Access Transport Area) : 434 Rate Center : WILLISTON ZIP Code Count : 82 ZIP Code Frequency : 4 ZIP Code : 29817 Other Information NPANXX : 803266 Switch CLLI (Common Language Location Identifier) : WLSTSCXADS1 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : WILLISTON TELEPHONE CO. OCN (Operating Company Number) : 0551 Coverage Area Name : WILLISTON Latitude : 33.3999 Longitude : -81.4279 ‹ previous : 803-266 next › : 803-266 Telephone Number List 803-266-0000 ~ 803-266-9999