Area Code 605-846 located in RAPID CITY, PENNINGTON, SD, more detail is as below. Place NPA (Numbering Plan Area) : 605 NXX (Local Number Prefix) : 846 City : RAPID CITY County : PENNINGTON State : SD (South Dakota) NXX Use Type : Landline NXX Intro Version : 2006-06-01 FIPS (Federal Information Processing Standards) : 46103 Rate Center : SIOUX FLS ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 57702 Other Information NPANXX : 605846 Switch CLLI (Common Language Location Identifier) : RPCYSDCOY4X MSA CBSA (Core Based Statistical Area) : Rapid City, SD MSA CBSA Code (Core Based Statistical Area) : 39660 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Latitude : None Longitude : None ‹ previous : 605-846 next › : 605-847 Telephone Number List 605-846-0000 ~ 605-846-9999