Lafayette, Louisiana
337 Area Code
Establish a trusted local presence in Lafayette and southwestern Louisiana with a 337 area code number. Ideal for businesses that want higher pickup rates and local trust in Lafayette, Calcasieu and Iberia parishes.
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About 337 Area Code
Area code 337 serves Lafayette and southwestern Louisiana. Created in October 1999 from the original 318 area code, 337 covers major cities including Lafayette, Lake Charles, New Iberia, Opelousas and Sulphur across 16 parishes. The code supports local voice and SMS-capable numbers used by oil and gas operations, healthcare facilities, educational institutions and tourism businesses throughout the heart of Cajun Country.
The 337 region blends oil and gas heritage with Cajun and Creole culture, agriculture and manufacturing. Lafayette anchors the economy with the University of Louisiana, tech startups and healthcare systems, while Lake Charles drives petrochemical and gaming industries along the Gulf Coast. Businesses use 337 numbers for appointment scheduling, festival promotions, customer support and logistics coordination. Local numbers deliver higher answer rates than toll-free or out-of-state alternatives because they signal regional presence and build trust with callers who value cultural connection.
FoneSwift lists live 337 inventory with real-time capabilities on this page. Search numbers to see Voice, SMS and MMS support. Area code availability changes over time. If a 337 number isn't immediately available, nearby Louisiana codes like 225 (Baton Rouge), 318 (Shreveport) or 985 (southeast Louisiana) provide solid regional alternatives for Gulf Coast and Acadiana audiences.
If you're targeting Lafayette or southwestern Louisiana, publish numbers in both local and E.164 formats such as (337) 555-1234 and +1 337 555 1234. The region requires 10-digit dialing for all local calls following the 2021 transition for 988 support. Register A2P messaging traffic if you plan business SMS campaigns. For porting, review our porting guide. Keeping the same number maintains customer recognition and preserves the local trust you've built in this tight-knit cultural region.
| Country | United States |
| State | Louisiana |
| Area code | 337 |
| Primary cities | Lafayette, Lake Charles, New Iberia, Opelousas, Sulphur |
| Counties served | Acadia, Allen, Beauregard, Calcasieu, Cameron, Evangeline, Iberia, Jefferson Davis, Lafayette, St. Landry, St. Martin, St. Mary, Vermilion, Vernon |
| Timezone | America/Chicago (CST) |
| Created | October 11, 1999 |
| International Format | +1 337 XXX XXXX |
| Local Format | (337) XXX-XXXX |
10-digit dialing is required for all local calls in the 337 region following the October 2021 transition. Register A2P messaging for business SMS to comply with US carrier rules (10DLC).
Area code 337 uses Central Standard Time (CST, UTC-6) and observes Central Daylight Time (CDT, UTC-5) during daylight saving time from early March to early November.
Local 337 numbers are commonly used for higher answer rates and cultural connection in Cajun Country. Consider nearby Louisiana codes like 225 or 318 for additional inventory while preserving Gulf Coast and Acadiana regional presence.
Quick Facts about 337 Area Code
Interesting tidbits about this area code 337
Heart of Cajun Country
Area code 337 covers Acadiana, the cultural center of Louisiana's Cajun and Creole heritage. Lafayette is known as the "Happiest City in America" for its festivals, music and hospitality.
Split from 318
Area code 337 was created in October 1999 after splitting from 318 to handle growth in southwestern Louisiana. It was the fourth area code introduced in the state.
Oil and gas hub
Lafayette became a center for the oil and gas industry after petroleum was discovered in the 1940s. The region remains a major hub for offshore drilling support and petrochemical operations.
Festival capital
Lake Charles hosts over 75 annual festivals including Mardi Gras and Contraband Days. Lafayette hosts Festival International de Louisiane, one of the largest international music festivals in the U.S.
Parishes not counties
Louisiana uses parishes instead of counties, a unique holdover from French and Spanish colonial rule. The 337 region covers 16 parishes across southwestern Louisiana.
10-digit dialing required
Area code 337 transitioned to mandatory 10-digit dialing on October 24, 2021 to support the 988 National Suicide Prevention Lifeline across all U.S. area codes.
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How Does Local 337 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 337 number in Lafayette and Louisiana, 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 (337): directs the call to the Lafayette / Louisiana 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) | +1 337 555 1234 |
| Local Format (National) | (337) 555-1234 |
Quick Dialing Guide
The correct formats to reach 337 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 337 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 337 number, register your traffic where required and follow carrier rules (10DLC/A2P) to avoid deliverability or throughput issues.
- Number Porting: Bring your existing 337number 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 337 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 337 Phone Number
Buying a local 337 phone number using FoneSwift is easy and takes just a few minutes. Follow these simple steps to get your local 337 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 337 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 337 Phone Numbers
Lafayette and southwestern Louisiana host oil and gas, healthcare, education, tourism and agriculture businesses. Local phone numbers support customer-facing operations and cultural marketing campaigns.
Oil, gas & petrochemical
Energy companies, refineries and offshore support services use 337 numbers for vendor coordination, logistics, safety hotlines and field operations throughout the Gulf Coast corridor.
Healthcare & medical
Hospital systems and clinics rely on local numbers for appointment scheduling, patient reminders, telehealth access and billing inquiries. A 337 area code improves answer rates and patient trust.
Higher education
University of Louisiana at Lafayette and regional colleges use local numbers for admissions, registrar operations, campus services and alumni outreach throughout Acadiana.
Tourism & hospitality
Hotels, casinos, festival organizers and cultural attractions use 337 numbers for reservations, guest services, event bookings and promotional campaigns targeting regional and national visitors.
Agriculture & seafood
Crawfish farms, rice growers, sugarcane operations and seafood processors use local lines for supply orders, distribution coordination and B2B communication across the coastal and agricultural parishes.
Professional services & retail
Law firms, accounting practices, real estate agencies and regional retailers use local numbers for client calls, consultations and customer support across the Lafayette metro area.
Why Choose 337 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 337 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 use the 337 area code?
When was the 337 area code created?
What parishes does area code 337 cover?
Do I need to dial 10 digits for 337 numbers?
Can I get SMS-capable numbers in area code 337?
Is 337 a toll-free code?
How do I buy a 337 local phone number?
Where can I find official coverage for 337?
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