Area Code 307-878 located in ALZADA, CARTER, WY, more detail is as below. Place NPA (Numbering Plan Area) : 307 NXX (Local Number Prefix) : 878 City : ALZADA County : CARTER State : WY (Wyoming) NXX Use Type : Landline NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 30011 LATA (Local Access Transport Area) : 650 Rate Center : SO ALZADA ZIP Code Count : 18 ZIP Code Frequency : 100 ZIP Code : 59311 Other Information NPANXX : 307878 County Population : 0 Switch CLLI (Common Language Location Identifier) : ALZDMTXCRS1 Time Zone : Mountain (GMT -07:00) Observes Daylight Saving Time : Yes Company : RANGE TELEPHONE COOPERATIVE, INC. OCN (Operating Company Number) : 2251 Coverage Area Name : HULETT Flags : The State for this record does not match the State for the ZIP Code. To keep with data reporting, the state for the Area Code is used. Latitude : 45.0292 Longitude : -104.4113 ‹ previous : 307-877 next › : 307-880 Telephone Number List 307-878-0000 ~ 307-878-9999