Area Code 307-384 located in EVANSTON, UINTA, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 384 City : EVANSTON County : UINTA State : WY (Wyoming) NXX Use Type : Landline NXX Intro Version : 2000-01-14 FIPS (Federal Information Processing Standards) : 56041 Rate Center : EVANSTON ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 82930 Other Information NPANXX : 307384 County Population : 0 Switch CLLI (Common Language Location Identifier) : CHYNWY1200A MSA CBSA (Core Based Statistical Area) : Evanston, WY MSA CBSA Code (Core Based Statistical Area) : 21740 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Latitude : None Longitude : None ‹ previous : 307-383 next › : 307-386 Telephone Number List 307-384-0000 ~ 307-384-9999