Area Code 406-526 located in NASHUA, VALLEY, MT, more detail is as below. Place NPA (Numbering Plan Area) : 406 NXX (Local Number Prefix) : 526 City : NASHUA County : VALLEY State : MT (Montana) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 30105 LATA (Local Access Transport Area) : 650 Rate Center : FORT PECK ZIP Code Count : 5 ZIP Code Frequency : 2 ZIP Code : 59248 Other Information NPANXX : 406526 Switch CLLI (Common Language Location Identifier) : FTPCMTXCRS1 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : NEMONT TELEPHONE COOPERATIVE, INC. OCN (Operating Company Number) : 2247 Coverage Area Name : FORT PECK Latitude : 48.0103 Longitude : -106.4457 ‹ previous : 406-525 next › : 406-526 Telephone Number List 406-526-0000 ~ 406-526-9999