Area Code 605-398 located in SOUTH SHORE, CODINGTON, SD, more detail is as below. Place NPA (Numbering Plan Area) : 605 NXX (Local Number Prefix) : 398 City : SOUTH SHORE County : CODINGTON State : SD (South Dakota) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 46029 LATA (Local Access Transport Area) : 640 Rate Center : SUMMIT ZIP Code Count : 6 ZIP Code Frequency : 2 ZIP Code : 57263 Other Information NPANXX : 605398 County Population : 0 Switch CLLI (Common Language Location Identifier) : SMMTSDXADS0 MSA CBSA (Core Based Statistical Area) : Watertown, SD MSA CBSA Code (Core Based Statistical Area) : 47980 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : RC COMMUNICATIONS, INC. OCN (Operating Company Number) : 1662 Coverage Area Name : SUMMIT Latitude : 45.3072 Longitude : -97.0316 ‹ previous : 605-398 next › : 605-398 Telephone Number List 605-398-0000 ~ 605-398-9999