Area Code 406-328 located in ROSCOE, CARBON, MT, more detail is as below. Place NPA (Numbering Plan Area) : 406 NXX (Local Number Prefix) : 328 City : ROSCOE County : CARBON State : MT (Montana) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 30009 LATA (Local Access Transport Area) : 650 Rate Center : ABSAROKEE ZIP Code Count : 101 ZIP Code Frequency : 7 ZIP Code : 59071 Other Information NPANXX : 406328 Switch CLLI (Common Language Location Identifier) : ABSRMTXCDS0 MSA CBSA (Core Based Statistical Area) : Billings, MT MSA CBSA Code (Core Based Statistical Area) : 13740 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : PROJECT TELEPHONE CO., INC. OCN (Operating Company Number) : 2250 Coverage Area Name : ABSAROKEE Latitude : 45.5143 Longitude : -109.4478 ‹ previous : 406-328 next › : 406-328 Telephone Number List 406-328-0000 ~ 406-328-9999