Area Code 406-298 located in COLUMBUS, STILLWATER, MT, more detail is as below. Place NPA (Numbering Plan Area) : 406 NXX (Local Number Prefix) : 298 City : COLUMBUS County : STILLWATER State : MT (Montana) NXX Use Type : Wireless NXX Intro Version : 1997-10-11 FIPS (Federal Information Processing Standards) : 30095 LATA (Local Access Transport Area) : 650 Rate Center : COLUMBUS ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 59019 Other Information NPANXX : 406298 Switch CLLI (Common Language Location Identifier) : BLNGMT233MD 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 : COLUMBUS Latitude : 45.6419 Longitude : -109.2556 ‹ previous : 406-297 next › : 406-299 Telephone Number List 406-298-0000 ~ 406-298-9999