Area Code 307-548 located in BYRON, BIG HORN, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 548 City : BYRON County : BIG HORN State : WY (Wyoming) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 56003 LATA (Local Access Transport Area) : 654 Rate Center : LOVELL ZIP Code Count : 123 ZIP Code Frequency : 6 ZIP Code : 82412 Other Information NPANXX : 307548 County Population : 0 Switch CLLI (Common Language Location Identifier) : LVLLWYXCRS1 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : TCT WEST, INC. OCN (Operating Company Number) : 3411 Coverage Area Name : LOVELL Latitude : 44.8347 Longitude : -108.3916 ‹ previous : 307-547 next › : 307-548 Telephone Number List 307-548-0000 ~ 307-548-9999