Area Code 605-997 located in ELKTON, BROOKINGS, SD, more detail is as below. Place NPA (Numbering Plan Area) : 605 NXX (Local Number Prefix) : 997 City : ELKTON County : BROOKINGS State : SD (South Dakota) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 46011 LATA (Local Access Transport Area) : 640 Rate Center : FLANDREAU ZIP Code Count : 37 ZIP Code Frequency : 2 ZIP Code : 57026 Other Information NPANXX : 605997 Switch CLLI (Common Language Location Identifier) : FLNDSDCORS1 MSA CBSA (Core Based Statistical Area) : Brookings, SD MSA CBSA Code (Core Based Statistical Area) : 15100 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : QWEST CORPORATION OCN (Operating Company Number) : 9631 Coverage Area Name : FLANDREAU Latitude : 44.0402 Longitude : -96.5902 ‹ previous : 605-997 next › : 605-997 Telephone Number List 605-997-0000 ~ 605-997-9999