Area Code 307-425 located in BUFFALO, JOHNSON, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 425 City : BUFFALO County : JOHNSON State : WY (Wyoming) NXX Use Type : Landline NXX Intro Version : 3/30/2011 FIPS (Federal Information Processing Standards) : 56019 LATA (Local Access Transport Area) : 654 Rate Center : BUFFALO ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 82834 Other Information NPANXX : 307425 County Population : 0 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : ADVANCED COMMUNICATIONS TECHNOLOGY, INC. - WY OCN (Operating Company Number) : 268A Coverage Area Name : BUFFALO Latitude : 44.3442 Longitude : -106.6976 ‹ previous : 307-424 next › : 307-426 Telephone Number List 307-425-0000 ~ 307-425-9999