Area Code 406-877 located in WIBAUX, WIBAUX, MT, more detail is as below. Place NPA (Numbering Plan Area) : 406 NXX (Local Number Prefix) : 877 City : WIBAUX County : WIBAUX State : MT (Montana) NXX Use Type : Landline NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 30109 LATA (Local Access Transport Area) : 638 Rate Center : WEST BEACH ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 59353 Other Information NPANXX : 406877 Switch CLLI (Common Language Location Identifier) : BECHNDXADS0 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : MIDSTATE COMMUNICATIONS, INC. OCN (Operating Company Number) : 1638 Coverage Area Name : WIBAUX Latitude : 46.9141 Longitude : -103.9977 ‹ previous : 406-876 next › : 406-878 Telephone Number List 406-877-0000 ~ 406-877-9999