Area codes in Cheyenne, Wyoming
Cheyenne, Wyoming uses area code 307. The main Cheyenne area code is 307.
Area codes serving Cheyenne
Phone numbers in Cheyenne are written as ten digits — for example (307) 555-0190 — and fall in the Mountain Time zone.
All Wyoming area codes · Is a Cheyenne call a scam?
Nearby cities
- Fort Collins area codes
- Greeley area codes
- Loveland area codes
- Longmont area codes
- Boulder area codes
- Brighton area codes
- Westminster area codes
- Denver area codes
More cities in Wyoming
Frequently asked questions
What is the area code for Cheyenne?
The main area code for Cheyenne, Wyoming is 307.
How many area codes does Cheyenne have?
Cheyenne has 1 area code: 307.
How do you dial a Cheyenne number?
Dial all 10 digits — the area code (307) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.