Area Code 605-942 located in PLANKINTON, AURORA, SD, more detail is as below. Place NPA (Numbering Plan Area) : 605 NXX (Local Number Prefix) : 942 City : PLANKINTON County : AURORA State : SD (South Dakota) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 46003 LATA (Local Access Transport Area) : 640 Rate Center : PLANKINTON ZIP Code Count : 507 ZIP Code Frequency : 98 ZIP Code : 57368 Other Information NPANXX : 605942 Switch CLLI (Common Language Location Identifier) : PLTNSDXADS1 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : SIOUX VALLEY TEL DBA GOLDEN WEST TELECOMMUNICATION OCN (Operating Company Number) : 1677 Coverage Area Name : PLANKINTON Latitude : 43.7151 Longitude : -98.4876 ‹ previous : 605-942 next › : 605-943 Telephone Number List 605-942-0000 ~ 605-942-9999