Area Code 307-359 located in DOUGLAS, CONVERSE, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 359 City : DOUGLAS County : CONVERSE State : WY (Wyoming) NXX Use Type : Wireless NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 56009 LATA (Local Access Transport Area) : 654 Rate Center : DOUGLAS ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 82633 Other Information NPANXX : 307359 County Population : 0 Switch CLLI (Common Language Location Identifier) : CHYNWY202MD Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY OCN (Operating Company Number) : 6566 Coverage Area Name : DOUGLAS Latitude : 42.7558 Longitude : -105.3659 ‹ previous : 307-358 next › : 307-360 Telephone Number List 307-359-0000 ~ 307-359-9999