Area Code 307-851 located in RIVERTON, FREMONT, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 851 City : RIVERTON County : FREMONT State : WY (Wyoming) NXX Use Type : Wireless NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 56013 LATA (Local Access Transport Area) : 654 Rate Center : RIVERTON ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 82501 Other Information NPANXX : 307851 County Population : 0 Switch CLLI (Common Language Location Identifier) : CHYNWY202MD MSA CBSA (Core Based Statistical Area) : Riverton, WY MSA CBSA Code (Core Based Statistical Area) : 40180 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 : RIVERTON Latitude : 43.0267 Longitude : -108.3827 ‹ previous : 307-850 next › : 307-854 Telephone Number List 307-851-0000 ~ 307-851-9999