Area Code 307-643 located in BEULAH, CROOK, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 643 City : BEULAH County : CROOK State : WY (Wyoming) NXX Use Type : Landline NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 56011 LATA (Local Access Transport Area) : 640 Rate Center : WSPEARFISH ZIP Code Count : 64 ZIP Code Frequency : 100 ZIP Code : 82712 Other Information NPANXX : 307643 County Population : 0 Switch CLLI (Common Language Location Identifier) : SPRFSDCORS1 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : QWEST CORPORATION OCN (Operating Company Number) : 9631 Coverage Area Name : BEULAH Latitude : 44.4931 Longitude : -103.8665 ‹ previous : 307-640 next › : 307-645 Telephone Number List 307-643-0000 ~ 307-643-9999