Area Code 605-358 located in FORBES, DICKEY, SD, more detail is as below. Place NPA (Numbering Plan Area) : 605 NXX (Local Number Prefix) : 358 City : FORBES County : DICKEY State : SD (South Dakota) NXX Use Type : Landline NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 38021 LATA (Local Access Transport Area) : 636 Rate Center : SO FORBES ZIP Code Count : 5 ZIP Code Frequency : 100 ZIP Code : 58439 Other Information NPANXX : 605358 County Population : 0 Switch CLLI (Common Language Location Identifier) : FRBSNDXA35A Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : DICKEY RURAL TELEPHONE COOPERATIVE OCN (Operating Company Number) : 1611 Coverage Area Name : FREDERICK Flags : The State for this record does not match the State for the ZIP Code. To keep with data reporting, the state for the Area Code is used. Latitude : 45.8850 Longitude : -98.7668 ‹ previous : 605-357 next › : 605-359 Telephone Number List 605-358-0000 ~ 605-358-9999