Wyoming Area Codes
Directory of all 1 telephone area codes assigned to Wyoming.
Wyoming phone numbers are served by 1 area code operating in the Mountain timezone.10-digit or 7-digit local dialing applies depending on the exact number. No area codes in Wyoming are currently flagged as high-risk scams.
Most populated prefix: area code 307 (Wyoming)
All Area Codes in Wyoming
Major Cities Served by Wyoming Area Codes
The most populous urban centers and census places covered by Wyoming's area codes, ranked by population.
Wyoming Area Code FAQs
Quick answers to common questions about Wyoming telephone area codes.
How many area codes does Wyoming have?
Wyoming has 1 area codes: 307.
What timezone do Wyoming area codes use?
Wyoming area codes operate in the Mountain timezone.
What is the most populated area code in Wyoming?
Area code 307 is the most populous prefix in Wyoming based on covered city population.
Does Wyoming use overlay area codes?
Wyoming currently has no overlay code pairs listed in our directory.
Are there scam area codes in Wyoming?
Wyoming has no area codes currently flagged as high-risk scams.
About Wyoming Area Codes & Phone Dialing Rules
When placing calls within Wyoming, ten-digit dialing (area code + 7-digit telephone number) is required in overlay regions where multiple area codes serve the same geographic boundaries.