A local number. A little more freedom.
Get a 307
phone number.
A local number for Cheyenne, WY. Call and text over WiFi or mobile data, on the phone you already have.
- Calls and texts
- No extra SIM
- Location
- Cheyenne, Wyoming
- Time zone
- Mountain (GMT -7)
Where is area code 307 located?
Area code 307 is a Wyoming area code, serving Cheyenne, WY and nearby cities including Casper, Gillette, Laramie. It is in the Mountain (GMT -7) time zone.
Who is calling from area code 307?
A 307 call comes from a number assigned to the Cheyenne, WY area, which can be a mobile, a landline or an app-based number like AvoCall's. Caller ID can be faked from any area code, so if you don't know the number, let it go to voicemail and never share a code you didn't ask for.
How do I get a 307 phone number?
Pick an available 307 number and sign up for AvoCall. Your new Cheyenne, WY number works for calls and texts on your existing phone over WiFi or data. No second SIM is needed. Right now 20 numbers in the 307 area code are available on this page (checked October 11, 2026 at 8:26 AM UTC).
Find one that feels like yours
Choose a 307 number
20 numbers listed · Checked October 11, 2026 at 8:26 AM UTC.
- (307) 312-8218West Spearfish, WY
- (307) 227-1094Mammoth, WY
- (307) 241-8817Wheatland, WY
- (307) 785-1280West Belle Fourche, WY
- (307) 621-8184Buffalo, WY
- (307) 207-8333Lake, WY
- (307) 241-8977Wheatland, WY
- (307) 296-0556Cody, WY
- (307) 463-8676Riverton, WY
- (307) 209-5522Rock Springs, WY
- (307) 207-0741Lake, WY
- (307) 463-8833Riverton, WY
- (307) 939-8147Wright, WY
- (307) 227-1043Mammoth, WY
- (307) 209-5333Rock Springs, WY
- (307) 207-8051Lake, WY
- (307) 227-1734Mammoth, WY
- (307) 313-1315Evanston, WY
- (307) 312-8289West Spearfish, WY
- (307) 227-1890Mammoth, WY
Every number requires an AvoCall plan. Current web pricing is verified at checkout, and number availability changes often.
About the 307 area code
The Cheyenne area of Wyoming falls within area code 307, which also reaches Casper, Gillette, Laramie, and Rock Springs. Mountain time applies across the territory.
Assignment came in 1947, in the first group of codes ever issued. Nothing structural has changed since. No split has divided the territory, no overlay has been added, and the code operates today just as it began.
Dialing note: 307 has been in service since 1947, making it one of the original North American area codes.
Numbering details on this page (service dates and overlay status) are checked against the NANPA numbering registry. Registry data as of 10/08/2026.
307 phone number FAQ
- Can I receive verification codes on a 307 number?
- AvoCall 307 numbers support calling and messaging. Verification-text compatibility varies by sender; short-code and 2FA delivery is not guaranteed.
- Which 307 numbers are available right now?
- As of October 11, 2026 at 8:26 AM UTC, 20 307 numbers were available to claim on this page. Inventory is re-checked hourly and changes as numbers are claimed, and availability is confirmed at checkout. See the current list.