Area Code 307-231 located in PINEDALE, SUBLETTE, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 231 City : PINEDALE County : SUBLETTE State : WY (Wyoming) NXX Use Type : Wireless NXX Intro Version : 1999-10-13 FIPS (Federal Information Processing Standards) : 56035 LATA (Local Access Transport Area) : 654 Rate Center : PINEDALE ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 82941 Other Information NPANXX : 307231 County Population : 0 Switch CLLI (Common Language Location Identifier) : PNDLWYAE1MD Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY OCN (Operating Company Number) : 6566 Coverage Area Name : PINEDALE Latitude : 42.8597 Longitude : -109.8556 ‹ previous : 307-230 next › : 307-232 Telephone Number List 307-231-0000 ~ 307-231-9999