Area Code 307-341 located in PARKMAN, SHERIDAN, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 341 City : PARKMAN County : SHERIDAN State : WY (Wyoming) NXX Use Type : Landline NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 56033 LATA (Local Access Transport Area) : 650 Rate Center : SOUTHWYOLA ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 82838 Other Information NPANXX : 307341 County Population : 0 Switch CLLI (Common Language Location Identifier) : WYOLMTXCRS1 MSA CBSA (Core Based Statistical Area) : Sheridan, WY MSA CBSA Code (Core Based Statistical Area) : 43260 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : PROJECT TELEPHONE CO., INC. OCN (Operating Company Number) : 2250 Coverage Area Name : PARKMAN Latitude : 45.1243 Longitude : -107.3915 ‹ previous : 307-340 next › : 307-343 Telephone Number List 307-341-0000 ~ 307-341-9999