307 Area Code: Location, Time Zone & Phone Lookup - Page 2

Area code 307 is one of the original area codes established in 1947. It covers the entire state of Wyoming. 307 is a unique area code in that it is one of the few area codes in the country that is not divided into smaller geographic areas.

Area code 307 is a Wyoming area code which serves the entire state of Wyoming. The 307 area code was created on December 5, 1997, as a split from area code 307 served the western two-thirds of the state. 307 is the only area code in Wyoming.