Area Code 605-337 located in GEDDES, CHARLES MIX, SD, more detail is as below. Place NPA (Numbering Plan Area) : 605 NXX (Local Number Prefix) : 337 City : GEDDES County : CHARLES MIX State : SD (South Dakota) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 46023 LATA (Local Access Transport Area) : 640 Rate Center : PLATTE ZIP Code Count : 275 ZIP Code Frequency : 20 ZIP Code : 57342 Other Information NPANXX : 605337 County Population : 0 Switch CLLI (Common Language Location Identifier) : PLTTSDXARS1 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : MIDSTATE COMMUNICATIONS, INC. OCN (Operating Company Number) : 1670 Coverage Area Name : PLATTE Latitude : 43.3818 Longitude : -98.8365 ‹ previous : 605-336 next › : 605-337 Telephone Number List 605-337-0000 ~ 605-337-9999