Area Code 307-254 located in POWELL, PARK, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 254 City : POWELL County : PARK State : WY (Wyoming) NXX Use Type : Wireless NXX Intro Version : 2004-01-27 FIPS (Federal Information Processing Standards) : 56029 LATA (Local Access Transport Area) : 654 Rate Center : POWELL ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 82435 Other Information NPANXX : 307254 County Population : 0 Switch CLLI (Common Language Location Identifier) : CSPRWYDN7MD 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 : POWELL Latitude : 44.7487 Longitude : -108.7548 ‹ previous : 307-253 next › : 307-255 Telephone Number List 307-254-0000 ~ 307-254-9999