Area Code 605-586 located in VOLGA, BROOKINGS, SD, more detail is as below. Place NPA (Numbering Plan Area) : 605 NXX (Local Number Prefix) : 586 City : VOLGA 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 : NUNDA ZIP Code Count : 21 ZIP Code Frequency : 10 ZIP Code : 57071 Other Information NPANXX : 605586 County Population : 0 Switch CLLI (Common Language Location Identifier) : NUNDSDXARS2 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 : INTERSTATE TELECOM. COOP., INC. - SOUTH DAKOTA OCN (Operating Company Number) : 1651 Coverage Area Name : NUNDA Latitude : 44.1582 Longitude : -97.0255 ‹ previous : 605-586 next › : 605-586 Telephone Number List 605-586-0000 ~ 605-586-9999