Area Code 605-690 located in ARLINGTON, KINGSBURY, SD, more detail is as below. Place NPA (Numbering Plan Area) : 605 NXX (Local Number Prefix) : 690 City : ARLINGTON County : KINGSBURY State : SD (South Dakota) NXX Use Type : Wireless NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 46077 LATA (Local Access Transport Area) : 640 Rate Center : BROOKINGS ZIP Code Count : 1 ZIP Code Frequency : 12 ZIP Code : 57212 Other Information NPANXX : 605690 Switch CLLI (Common Language Location Identifier) : BKNGSDCACM6 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : NEW CINGULAR WIRELESS PCS, LLC - IL OCN (Operating Company Number) : 6534 Coverage Area Name : BROOKINGS Latitude : 44.3372 Longitude : -96.7670 ‹ previous : 605-690 next › : 605-690 Telephone Number List 605-690-0000 ~ 605-690-9999