Area Code 307-365 located in CHEYENNE, LARAMIE, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 365 City : CHEYENNE County : LARAMIE State : WY (Wyoming) NXX Use Type : Wireless NXX Intro Version : 3/3/2008 FIPS (Federal Information Processing Standards) : 56021 LATA (Local Access Transport Area) : 654 Rate Center : CHEYENNE ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 82007 Other Information NPANXX : 307365 County Population : 0 MSA CBSA (Core Based Statistical Area) : Cheyenne, WY MSA CBSA Code (Core Based Statistical Area) : 16940 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : NEW CINGULAR WIRELESS PCS, LLC OCN (Operating Company Number) : 6010 Coverage Area Name : CHEYENNE Latitude : 41.1382 Longitude : -104.8150 ‹ previous : 307-363 next › : 307-366 Telephone Number List 307-365-0000 ~ 307-365-9999