Area Code 406-310 located in BUTTE, SILVER BOW, MT, more detail is as below. Place NPA (Numbering Plan Area) : 406 NXX (Local Number Prefix) : 310 City : BUTTE County : SILVER BOW State : MT (Montana) NXX Use Type : Wireless NXX Intro Version : 2000-06-13 FIPS (Federal Information Processing Standards) : 30093 LATA (Local Access Transport Area) : 648 Rate Center : BUTTE ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 59750 Other Information NPANXX : 406310 Switch CLLI (Common Language Location Identifier) : MSSLMT28CM1 MSA CBSA (Core Based Statistical Area) : Butte-Silver Bow, MT MSA CBSA Code (Core Based Statistical Area) : 15580 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : SPRINT SPECTRUM L.P.- MT OCN (Operating Company Number) : 6034 Coverage Area Name : BUTTE Latitude : 45.9973 Longitude : -112.5137 ‹ previous : 406-309 next › : 406-312 Telephone Number List 406-310-0000 ~ 406-310-9999