Area Code 406-235 located in WOLF CREEK, LEWIS AND CLARK, MT, more detail is as below. Place NPA (Numbering Plan Area) : 406 NXX (Local Number Prefix) : 235 City : WOLF CREEK County : LEWIS AND CLARK State : MT (Montana) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 30049 LATA (Local Access Transport Area) : 648 Rate Center : WOLF CREEK ZIP Code Count : 260 ZIP Code Frequency : 99 ZIP Code : 59648 Other Information NPANXX : 406235 Switch CLLI (Common Language Location Identifier) : WLCKMTMARS1 MSA CBSA (Core Based Statistical Area) : Helena, MT MSA CBSA Code (Core Based Statistical Area) : 25740 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : QWEST CORPORATION OCN (Operating Company Number) : 9636 Coverage Area Name : WOLF CREEK Latitude : 47.0003 Longitude : -112.0617 ‹ previous : 406-234 next › : 406-236 Telephone Number List 406-235-0000 ~ 406-235-9999