Area Code 406-250 located in RONAN, LAKE, MT, more detail is as below. Place NPA (Numbering Plan Area) : 406 NXX (Local Number Prefix) : 250 City : RONAN County : LAKE State : MT (Montana) NXX Use Type : Wireless NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 30047 LATA (Local Access Transport Area) : 648 Rate Center : KALISPELL ZIP Code Count : 2 ZIP Code Frequency : 22 ZIP Code : 59864 Other Information NPANXX : 406250 Switch CLLI (Common Language Location Identifier) : HLNAMTHUCM1 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT OCN (Operating Company Number) : 6564 Coverage Area Name : KALISPELL Latitude : 48.1990 Longitude : -114.3151 ‹ previous : 406-249 next › : 406-250 Telephone Number List 406-250-0000 ~ 406-250-9999