Area Code 605-597 located in MITCHELL, DAVISON, SD, more detail is as below. Place NPA (Numbering Plan Area) : 605 NXX (Local Number Prefix) : 597 City : MITCHELL County : DAVISON State : SD (South Dakota) NXX Use Type : Landline NXX Intro Version : 4/24/2009 FIPS (Federal Information Processing Standards) : 46035 LATA (Local Access Transport Area) : 640 Rate Center : CROOKS ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 57301 Other Information NPANXX : 605597 County Population : 0 MSA CBSA (Core Based Statistical Area) : Mitchell, SD MSA CBSA Code (Core Based Statistical Area) : 33580 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : QWEST CORPORATION OCN (Operating Company Number) : 9631 Coverage Area Name : MITCHELL Latitude : 43.7085 Longitude : -98.0218 ‹ previous : 605-596 next › : 605-598 Telephone Number List 605-597-0000 ~ 605-597-9999