Cheyenne, Wyoming
307 Area Code
Establish a trusted local presence across Wyoming with a 307 area code number. Ideal for businesses that want higher pickup rates and local credibility in the Cowboy State, from Cheyenne to Casper to Jackson Hole.
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About 307 Area Code
Area code 307 serves the entire state of Wyoming, making it one of just 11 U.S. states with a single area code. Established in 1947 as part of the original North American Numbering Plan, 307 covers all major population centers including Cheyenne, Casper, Gillette, Laramie, Rock Springs and Sheridan, spanning all 23 counties across nearly 98,000 square miles. The code supports local voice and SMS-capable numbers used by businesses, government agencies and community organizations throughout Wyoming's urban centers and rural landscapes.
The 307 region is powered by energy extraction (coal, oil and natural gas), tourism anchored by Yellowstone and Grand Teton National Parks, ranching and agriculture. Local businesses use 307 numbers for field operations, visitor services, appointment scheduling, customer support and logistics coordination. A local 307 number delivers higher answer rates than toll-free alternatives because it signals genuine Wyoming presence and matches local expectations across the state's close-knit communities.
FoneSwift lists live 307 inventory and capabilities on this page. Search numbers to see which ones support Voice, SMS and MMS. Area-code availability fluctuates, but Wyoming's low population density typically means good inventory. If a specific 307 number isn't available immediately, similar results often appear within minutes as our system refreshes inventory from carrier partners.
If your business targets Wyoming customers or regional markets in the Mountain West, publish numbers in both local and E.164 formats (e.g., (307) 555-1234 and +1 307 555 1234) for maximum accessibility. Register messaging traffic if you plan A2P campaigns to ensure deliverability. For porting, see our porting guide. Many Wyoming businesses value the 307 area code as part of their regional identity and brand.
| Country | United States |
| State | Wyoming |
| Area code | 307 |
| Primary cities | Cheyenne, Casper, Gillette, Laramie, Rock Springs |
| Counties served | Albany, Big Horn, Campbell, Carbon, Converse, Crook, Fremont, Goshen, Hot Springs, Johnson, Laramie, Lincoln, Natrona, Niobrara, Park, Platte, Sheridan, Sublette, Sweetwater, Teton, Uinta, Washakie, Weston |
| Timezone | America/Denver (MST) |
| Created | January 1, 1947 |
| International Format | +1 307 XXX XXXX |
| Local Format | (307) XXX-XXXX |
10-digit dialing is required within and into the 307 region. Register A2P messaging for business SMS to comply with U.S. carrier rules (10DLC). Wyoming observes Mountain Daylight Time during summer months.
Area code 307 uses Mountain Standard Time (MST, UTC-7) and observes Daylight Saving Time, shifting to Mountain Daylight Time (MDT, UTC-6) from early March to early November. Business hours typically align with Mountain Time.
Local numbers are commonly used for higher answer rates and regional trust across Wyoming. The 307 area code carries strong brand identity and local pride, making it valuable for businesses targeting Wyoming customers and communities.
Quick Facts about 307 Area Code
Interesting tidbits about this area code 307
Original area code
Area code 307 was created in 1947 as one of the original 86 area codes established by AT&T and the Bell System under the North American Numbering Plan.
Only 11 states with one code
Wyoming is one of just 11 U.S. states with a single area code, reflecting its low population density and efficient telecommunications structure that has not required splits or overlays.
The middle digit meaning
Until 1953, a zero as the middle digit in an area code indicated it covered an entire state, while a 1 meant partial coverage. The 307 code reflected this design by serving all of Wyoming.
307 Day celebration
March 7th (3/07) is celebrated as 307 Day across Wyoming, honoring the state's unique area code. Residents embrace the number as a badge of regional pride and Wyoming identity.
Brand identity symbol
Over 900 Wyoming businesses have names starting with 307, using the area code as a branding tool and symbol of local authenticity. The code appears on apparel, merchandise and license plates.
Safe for decades
Wyoming's 307 area code has sufficient capacity to last at least another 20 years without requiring an overlay or split, thanks to the state's stable population and careful number management.
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How Does Local 307 Phone Numbers Work?
A local business number is a structured telephone identifier that tells networks where to route calls and messages. When you use a 307 number in Cheyenne and Wyoming, the digits signal the international gateway, the geographic region, the local exchange and the specific subscriber, so calls reach the right destination quickly and reliably.
The typical parts of a United States local number are:
- Country code (+1): identifies United States for international routing.
- Area code (307): directs the call to the Cheyenne / Wyoming region.
- Central office / exchange (eg. 555): narrows the call to a local switching area or rate center.
- Subscriber number (eg. 1234): the unique line assigned to a person, extension, or device.
Example formats:
| International Format (E.164) | +1 307 555 1234 |
| Local Format (National) | (307) 555-1234 |
Quick Dialing Guide
The correct formats to reach 307 numbers locally and globally.
From Landlines
Standard United States FormatUse for domestic long-distance calls within United States.
From Mobile
E.164 InternationalThe universal format. Works on any mobile device, anywhere.
International
From abroadDialing from outside United States (exit code 00 varies by country).
With FoneSwift, your 307 number can be instantly configured through our intuitive dashboard. Connect it to call forwarding rules, AI voice agents, IVR menus, or route calls directly to any device. Enable voice, SMS, and MMS capabilities right from your account, no technical setup required. Your number becomes active immediately after purchase, and you can update routing, business hours, and integrations anytime.
For businesses, local numbers offer clear benefits: higher answer rates, stronger local recognition, and better performance for local campaigns and customer trust. Typical business features include call forwarding, call recording, auto-attendants, voicemail-to-email, and multi-device ringing.
Important operational notes:
- SMS & A2P: If you plan to send application-to-person messages from a 307 number, register your traffic where required and follow carrier rules (10DLC/A2P) to avoid deliverability or throughput issues.
- Number Porting: Bring your existing 307number to FoneSwift seamlessly. Our team handles the entire porting process, simply submit your number details and we'll coordinate with your current provider. Porting typically completes within 5-10 business days, and you'll receive updates at each step. There's no service interruption during the transfer.
- Display & formatting: Always publish numbers in both local and E.164 formats so international and mobile users can easily dial.
Ready to get started? Browse available 307 numbers in the phone numbers section above, you'll see real-time availability and can filter by features like voice, SMS, and MMS. Once you find your perfect number, purchase it in seconds and start making calls immediately. Our team is here to help you choose the right setup for your business needs, whether you're setting up AI receptionists, call forwarding, or SMS campaigns. Start your 14-day free trial today, no credit card required.
How to Get a 307 Phone Number
Buying a local 307 phone number using FoneSwift is easy and takes just a few minutes. Follow these simple steps to get your local 307 phone number and start connecting with customers in United States today.
Create a new account on FoneSwift or sign in to your existing account to get started.
Once logged in, you'll be taken to your FoneSwift dashboard where you can manage all your phone numbers and settings.
Click on Settings in the sidebar, then go to "My Numbers" and click the "Add a Number" button.
Choose United States as your country from the dropdown menu.
Select Local as the type of number, then choose the 307 area code from the available options.
Click the "Search" button to see all available phone numbers with the selected area code.
Browse through the available numbers, select one that fits your needs, click "Buy Number", and confirm your purchase.
Your number is now active! Start making and receiving calls from the FoneSwift Dialer immediately.
You can configure your number to handle calls, forward calls, or even create an AI voice agent to handle the calls for you.
Businesses Using 307 Phone Numbers
Wyoming's economy is driven by energy extraction, tourism, agriculture and transportation. Local phone numbers are widely used for customer-facing operations, field coordination and building regional trust.
Energy & natural resources
Coal, oil and natural gas extraction operations use local numbers for field coordination, safety communications, equipment scheduling and B2B relationships. A local area code supports operations across Wyoming's 21 producing counties.
Tourism & hospitality
Hotels, outfitters, tour operators and visitor services near Yellowstone, Grand Teton, Devils Tower and other attractions rely on local numbers for reservations, guest services and emergency communications during peak seasons.
Ranching & agriculture
Cattle ranches, sheep operations, hay producers and ag suppliers use local lines for livestock coordination, equipment sales, veterinary services and commodity trading across Wyoming's vast rural landscape.
Government & public services
State agencies, county offices, schools and public utilities in Cheyenne and across Wyoming use local numbers for constituent services, emergency management, public information and interagency coordination.
Healthcare & telehealth
Hospitals, clinics and rural health centers use local numbers for appointment reminders, patient outreach, telehealth consultations and emergency services. Local area codes improve answer rates in smaller communities.
Transportation & logistics
Freight carriers, trucking operations, rail logistics and distribution centers use local phone lines for driver coordination, dispatch operations and supply-chain communications along Wyoming's I-80 and I-25 corridors.
Why Choose 307 Local Phone Number for Your Business?
Discover the advantages of having a local phone number that builds trust, increases engagement, and drives results.
Powerful Features for Your 307 Local Phone Number
Get the most out of your localphone number with FoneSwift's enterprise-grade features designed to help your business communicate more effectively.
Nearby Area Codes
Explore other area codes in the same region to expand your local presence.
Frequently Asked Questions
What cities and areas use the 307 area code?
When was the 307 area code created?
Is 307 the only area code for Wyoming?
Can I get SMS-capable numbers in area code 307?
Do I need to dial 10 digits for 307 numbers?
Is 307 a toll-free code?
How do I buy a 307 local phone number?
How can I port my existing number into FoneSwift?
What is 307 Day?
Where can I find official coverage or history for 307?
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