Cheyenne · Mountain Timesince 1947 · no overlay366 reported · 30 daysrank 223 of 331updated 8 Oct 2026
Area code 307 — Cheyenne, Wyoming
Area code
307
Location
Cheyenne, Wyoming
Location
Cheyenne, Wyoming
Status
Active since 1947
Spam reports · 30 days
366 numbers
Area code 307 covers Cheyenne and surrounding communities in Wyoming.
Updated 8 October 2026
Area code 307 is in Wyoming, shown here with Cheyenne marked.
Now in Cheyenne
Mountain Time · UTC−7, UTC−6 in summer
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Mountain Time
Where you are—
Offset—
Callback window
Typical business hours, 9 to 5 Monday to Friday.
Typical business hours, 9 to 5 Monday to Friday, shown as the blue arc. A guide to when a real Cheyenne office is likely to answer. It says nothing about who called you.
1947The original 86 area codes. All of Wyoming is 307.
Today1 code, none of them overlays.
01
Where is area code 307?
Area code 307 is in Cheyenne, Wyoming, covering Cheyenne and surrounding communities in Wyoming. All 307 numbers are on Mountain Time.
CitiesCheyenne
02
Is area code 307 a scam?
No. Area code 307 is a legitimate area code serving Cheyenne since 1947. Scammers spoof caller ID to display 307 numbers, which is why complaints exist against a code that is itself genuine.
Neighbour spoofing is the reason a local-looking number is not a guarantee. A caller anywhere in the world can display a 307 number, and the number they display may belong to a real business in Cheyenne that has nothing to do with the call.
The callerAnywhere in the worldSets the caller ID their equipment sends.
What is displayed(307) 292-7313May belong to a real Cheyenne business.
Your phoneLooks localA nearby code and prefix make you likelier to answer.
366Area code 307 had 366 different numbers reported for spam calls in the 30 days to 8 October 2026.
223rdArea code 307 ranks 223rd of 331 US geographic area codes by spam complaint volume.
62%Of the 391 complaints about area code 307 in the 30 days to 8 October 2026, 62% were reported as a recorded message or robocall.
29%The most reported subject on area code 307 is reducing your debt (credit cards, mortgage, student loans), appearing in 29% of its complaints in the 30 days to 8 October 2026.
Why am I getting text messages from area code 307?
Texts from 307 numbers follow the same pattern as calls — mostly local businesses and services. Treat any text asking for payment or credentials as suspect regardless of the code.
The common patterns are a wrong-number opener that turns into conversation, an unsolicited job offer, and a crypto or investment tip. Do not reply, do not follow the link, and forward the message to 7726 (SPAM) to report it to your carrier.
Pattern 1Wrong-number openerTurns into conversation.
Pattern 2Unsolicited job offerDo not reply, do not follow the link.
Pattern 3Crypto or investment tipTreat any payment ask as suspect.
Report it7726Forward the message. It spells SPAM on a keypad.
04 · The human layer
Who works in the Cheyenne area?
Area code 307 covers the entire state of Wyoming, one of the few codes to serve a whole state unchanged since 1947, and Cheyenne is its capital and business anchor. The city's economy rests on government, the railroad, and the military: the State of Wyoming and Laramie County are the largest employers, Union Pacific has run through Cheyenne since the town was founded on its tracks in 1867, and F.E. Warren Air Force Base manages intercontinental ballistic missiles from the city's western edge. A newer layer is data centers, drawn by cheap land and power, with Microsoft operating a campus in the area, and a growing cluster of blockchain firms attracted by Wyoming's friendly corporate statutes.
Who lives in the 307 region
Cheyenne held 65,239 people in 2024, with a median household income of $78,839 and a poverty rate of 8.74 percent, low by national standards (Census ACS via Data USA). The population is 98.7 percent US citizens, and just 2.9 percent of residents were born abroad. Hispanic residents make up 16.8 percent of the city and Spanish is the only non-English language with a meaningful local presence.
What a 307 number signals to a caller
Because 307 is statewide, the number says Wyoming rather than any one city, and residents treat it as a marker of belonging in a state of under 600,000 people. Callers describe business in Cheyenne, Wyoming as personal and handshake-driven, where reputations travel fast because everyone knows everyone. Government and rail run on formal procurement, but most local deals still start with a phone call answered by the owner.
Area code 307 serves Cheyenne and surrounding communities in Wyoming. It is in the Mountain Time zone.
What state is area code 307 in?
Area code 307 is in Wyoming. It is not in Arlington — those are area code 703.
Is area code 307 toll free?
No. Area code 307 is a geographic area code serving Cheyenne, Wyoming. The toll-free codes are 800, 833, 844, 855, 866, 877, 888, and a call to a 307 number is charged at your normal rate.
Why am I getting calls from 307?
Calls displaying a 307 number come from businesses and individuals in the Cheyenne area, and from anywhere at all when caller ID is spoofed to look local. 366 307 numbers were reported to the FTC in the 30 days to 8 October 2026.
How do I block calls from area code 307?
Both iOS and Android can silence calls from unknown numbers, and every major US carrier offers free call-blocking. Blocking the whole of area code 307 is rarely worth it, because spoofed numbers change constantly and you would lose legitimate calls from Cheyenne.