Area Code 406-279 located in VALIER, PONDERA, MT, more detail is as below. Place NPA (Numbering Plan Area) : 406 NXX (Local Number Prefix) : 279 City : VALIER County : PONDERA State : MT (Montana) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 30073 LATA (Local Access Transport Area) : 648 Rate Center : VALIER ZIP Code Count : 407 ZIP Code Frequency : 92 ZIP Code : 59486 Other Information NPANXX : 406279 Switch CLLI (Common Language Location Identifier) : VALRMTXCRS1 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 : VALIER Latitude : 48.3082 Longitude : -112.2468 ‹ previous : 406-279 next › : 406-280 Telephone Number List 406-279-0000 ~ 406-279-9999