Area Code 605-210 located in BELLE FOURCHE, BUTTE, SD, more detail is as below. Place NPA (Numbering Plan Area) : 605 NXX (Local Number Prefix) : 210 City : BELLE FOURCHE County : BUTTE State : SD (South Dakota) NXX Use Type : Wireless NXX Intro Version : 2000-08-20 FIPS (Federal Information Processing Standards) : 46019 LATA (Local Access Transport Area) : 640 Rate Center : BELLEFORCH ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 57717 Other Information NPANXX : 605210 County Population : 0 Switch CLLI (Common Language Location Identifier) : BLFRSD03Q00 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : NEW CINGULAR WIRELESS PCS, LLC - IL OCN (Operating Company Number) : 6534 Coverage Area Name : BELLE FOURCHE Latitude : 44.6641 Longitude : -103.8528 ‹ previous : 605-209 next › : 605-212 Telephone Number List 605-210-0000 ~ 605-210-9999