Area Code 605-350 located in WOONSOCKET, SANBORN, SD, more detail is as below. Place NPA (Numbering Plan Area) : 605 NXX (Local Number Prefix) : 350 City : WOONSOCKET County : SANBORN State : SD (South Dakota) NXX Use Type : Wireless NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 46111 LATA (Local Access Transport Area) : 640 Rate Center : HURON ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 57385 Other Information NPANXX : 605350 County Population : 0 Switch CLLI (Common Language Location Identifier) : HURNSDGCCM1 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : NEW CINGULAR WIRELESS PCS, LLC - IL OCN (Operating Company Number) : 6534 Coverage Area Name : HURON Latitude : 44.3414 Longitude : -98.2423 ‹ previous : 605-349 next › : 605-351 Telephone Number List 605-350-0000 ~ 605-350-9999