Area Code 307-245 located in CHEYENNE, LARAMIE, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 245 City : CHEYENNE County : LARAMIE State : WY (Wyoming) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 56021 LATA (Local Access Transport Area) : 654 Rate Center : PINEBLUFFS ZIP Code Count : 17 ZIP Code Frequency : 3 ZIP Code : 82001 Other Information NPANXX : 307245 County Population : 0 Switch CLLI (Common Language Location Identifier) : PNBLWYXCDS0 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 : RT COMMUNICATIONS OCN (Operating Company Number) : 3410 Coverage Area Name : PINE BLUFFS Latitude : 41.1813 Longitude : -104.0667 ‹ previous : 307-245 next › : 307-245 Telephone Number List 307-245-0000 ~ 307-245-9999