Area Code 406-847 located in HERON, SANDERS, MT, more detail is as below. Place NPA (Numbering Plan Area) : 406 NXX (Local Number Prefix) : 847 City : HERON County : SANDERS State : MT (Montana) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 30089 LATA (Local Access Transport Area) : 648 Rate Center : NOXON ZIP Code Count : 244 ZIP Code Frequency : 36 ZIP Code : 59844 Other Information NPANXX : 406847 Switch CLLI (Common Language Location Identifier) : NOXNMTXCRS1 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : BLACKFOOT TELEPHONE COOPERATIVE, INC. OCN (Operating Company Number) : 2235 Coverage Area Name : NOXON Latitude : 47.9936 Longitude : -115.7784 ‹ previous : 406-846 next › : 406-847 Telephone Number List 406-847-0000 ~ 406-847-9999