Area code 307
Get a 307 phone number
To get a 307 phone number, pick an available 307 number below and sign up for AvoCall. Your new number works for calls and texts on the phone you already own over WiFi or data. Current web pricing is verified at checkout. No second SIM and no new device are required.
- Location
- Cheyenne, WY, Wyoming
- Time zone
- Mountain (GMT -7)
The 307 area code covers Cheyenne, WY and nearby Wyoming communities.
Top 20 307 numbers available right now
Pulled live from our carrier network. Last updated: August 25, 2026 at 1:41 PM UTC.
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 07/16/2026.
307 phone number FAQ
- 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. Current web pricing is verified at checkout. There is no second SIM and no new device.
- Where is the 307 area code?
- It serves Cheyenne, WY and nearby cities in Wyoming, including Cheyenne, Casper, Gillette.
- 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.