Area Code 406-684 located in ANACONDA, DEER LODGE, MT, more detail is as below. Place NPA (Numbering Plan Area) : 406 NXX (Local Number Prefix) : 684 City : ANACONDA County : DEER LODGE State : MT (Montana) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 30023 LATA (Local Access Transport Area) : 648 Rate Center : TWINBRIDGS ZIP Code Count : 14 ZIP Code Frequency : 2 ZIP Code : 59711 Other Information NPANXX : 406684 Switch CLLI (Common Language Location Identifier) : TWBRMTXCRS1 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : 3 RIVERS TELEPHONE COOPERATIVE, INC. OCN (Operating Company Number) : 2255 Coverage Area Name : TWIN BRIDGES Latitude : 45.5445 Longitude : -112.3274 ‹ previous : 406-683 next › : 406-684 Telephone Number List 406-684-0000 ~ 406-684-9999