Area Code 307-655 located in DAYTON, SHERIDAN, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 655 City : DAYTON County : SHERIDAN State : WY (Wyoming) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 56033 LATA (Local Access Transport Area) : 654 Rate Center : SHERIDAN ZIP Code Count : 296 ZIP Code Frequency : 35 ZIP Code : 82836 Other Information NPANXX : 307655 County Population : 0 Switch CLLI (Common Language Location Identifier) : DNRHWYMARS1 MSA CBSA (Core Based Statistical Area) : Sheridan, WY MSA CBSA Code (Core Based Statistical Area) : 43260 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : QWEST CORPORATION OCN (Operating Company Number) : 9636 Coverage Area Name : WOLF Latitude : 44.8984 Longitude : -107.2081 ‹ previous : 307-654 next › : 307-655 Telephone Number List 307-655-0000 ~ 307-655-9999