Area Code 307-645 located in POWELL, PARK, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 645 City : POWELL County : PARK State : WY (Wyoming) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 56029 LATA (Local Access Transport Area) : 650 Rate Center : CLARK ZIP Code Count : 29 ZIP Code Frequency : 14 ZIP Code : 82435 Other Information NPANXX : 307645 County Population : 0 Switch CLLI (Common Language Location Identifier) : CLRKWYXCRS1 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : PROJECT TELEPHONE CO., INC. OCN (Operating Company Number) : 2250 Coverage Area Name : POWELL Latitude : 44.9279 Longitude : -109.1776 ‹ previous : 307-643 next › : 307-645 Telephone Number List 307-645-0000 ~ 307-645-9999