Area Code 406-881 located in OLNEY, FLATHEAD, MT, more detail is as below. Place NPA (Numbering Plan Area) : 406 NXX (Local Number Prefix) : 881 City : OLNEY County : FLATHEAD State : MT (Montana) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 30029 LATA (Local Access Transport Area) : 648 Rate Center : OLNEY ZIP Code Count : 124 ZIP Code Frequency : 83 ZIP Code : 59927 Other Information NPANXX : 406881 Switch CLLI (Common Language Location Identifier) : OLNYMTXCRS0 MSA CBSA (Core Based Statistical Area) : Kalispell, MT MSA CBSA Code (Core Based Statistical Area) : 28060 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK OCN (Operating Company Number) : 2249 Coverage Area Name : WHITEFISH Latitude : 48.5499 Longitude : -114.5761 ‹ previous : 406-881 next › : 406-882 Telephone Number List 406-881-0000 ~ 406-881-9999