Area Code 307-331 located in WHEATLAND, PLATTE, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 331 City : WHEATLAND County : PLATTE State : WY (Wyoming) NXX Use Type : Wireless NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 56031 LATA (Local Access Transport Area) : 654 Rate Center : WHEATLAND ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 82201 Other Information NPANXX : 307331 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 : WHEATLAND Latitude : 42.0480 Longitude : -104.9504 ‹ previous : 307-330 next › : 307-332 Telephone Number List 307-331-0000 ~ 307-331-9999