Area Code 307-368 located in DOUGLAS, CONVERSE, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 368 City : DOUGLAS County : CONVERSE State : WY (Wyoming) NXX Use Type : Landline NXX Intro Version : 2001-10-31 FIPS (Federal Information Processing Standards) : 56009 Rate Center : DOUGLAS ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 82633 Other Information NPANXX : 307368 County Population : 0 Switch CLLI (Common Language Location Identifier) : CSPRWYDH00A Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Latitude : None Longitude : None ‹ previous : 307-367 next › : 307-369 Telephone Number List 307-368-0000 ~ 307-368-9999