Area Code 307-345 located in LANDER, FREMONT, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 345 City : LANDER County : FREMONT State : WY (Wyoming) NXX Use Type : Wireless NXX Intro Version : 1998-11-20 FIPS (Federal Information Processing Standards) : 56013 LATA (Local Access Transport Area) : 654 Rate Center : LANDER ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 82520 Other Information NPANXX : 307345 County Population : 0 Switch CLLI (Common Language Location Identifier) : MNVWWYXCCM2 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 : UNION TELEPHONE COMPANY OCN (Operating Company Number) : 013B Coverage Area Name : LANDER Latitude : 42.8313 Longitude : -108.7339 ‹ previous : 307-344 next › : 307-347 Telephone Number List 307-345-0000 ~ 307-345-9999