Area Code 307 is located in the state of Wyoming.
The Wyoming`s major city is Cheyenne
The state of Wyoming is in Mountain timezone.
More important cities in Wyoming:
Casper, WY; Cheyenne, WY; Gillette, WY; Laramie, WY;
Prefixes within the 307 Area Code what we have in our database.
| Prefix | Primary City | County | Usage |
| (307) 921 | Thermopolis, WY | Hot Springs | Cell Number |
| (307) 922 | Rock Springs, WY | Sweetwater | Landline |
| (307) 939 | Gillette, WY | Campbell | Landline |
| (307) 941 | Newcastle, WY | Weston | Cell Number |
| (307) 943 | Wheatland, WY | Platte | Landline |
| (307) 949 | Newcastle, WY | Weston | Cell Number |
| (307) 977 | Laramie, WY | Albany | Cell Number |
| (307) 995 | Casper, WY | Carbon | Landline |
We have 408 Prefixes in our database.