Area Code 406-734 located in FORT BENTON, CHOUTEAU, MT, more detail is as below. Place NPA (Numbering Plan Area) : 406 NXX (Local Number Prefix) : 734 City : FORT BENTON County : CHOUTEAU State : MT (Montana) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 30015 LATA (Local Access Transport Area) : 648 Rate Center : CARTER ZIP Code Count : 26 ZIP Code Frequency : 15 ZIP Code : 59442 Other Information NPANXX : 406734 Switch CLLI (Common Language Location Identifier) : CRTRMTXCRS1 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 : CARTER Latitude : 47.7818 Longitude : -110.9546 ‹ previous : 406-733 next › : 406-734 Telephone Number List 406-734-0000 ~ 406-734-9999