Area Code 406-828 located in HAMMOND, CARTER, MT, more detail is as below. Place NPA (Numbering Plan Area) : 406 NXX (Local Number Prefix) : 828 City : HAMMOND County : CARTER State : MT (Montana) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 30011 LATA (Local Access Transport Area) : 650 Rate Center : ALZADA ZIP Code Count : 3 ZIP Code Frequency : 4 ZIP Code : 59332 Other Information NPANXX : 406828 Switch CLLI (Common Language Location Identifier) : ALZDMTXCRS1 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : RANGE TELEPHONE COOPERATIVE, INC. OCN (Operating Company Number) : 2251 Coverage Area Name : ALZADA Latitude : 45.0292 Longitude : -104.4113 ‹ previous : 406-827 next › : 406-828 Telephone Number List 406-828-0000 ~ 406-828-9999