337 Area CodeLafayette, LA
Area code 337 covers Lafayette and nearby communities in Louisiana, in the Central Time (CT) zone, home to about 546,000 people across 96 cities. It's the only area code for this region, so the three digits alone place the caller.
Overview
- Major City
- Lafayette
- State
- Louisiana (LA)
- Timezone
- Central Time (CT)
- Current Time
- Overlay
- No – unique area code
Where is area code 337?
Area code 337 serves part of Lafayette, LA and the surrounding areas. It is a unique area code with no overlays.
Overview of the 337 Area Code
What is the 337 area code?
The 337 area code serves Lafayette, Louisiana. When you see a 337 number, it indicates a local number within this geographic area.
Why was area code 337 created?
The 337 area code was established to serve the Lafayette region in Louisiana. It provides telephone number coverage across 96 cities.
Geographic Coverage of the 337 Area Code
The 337 area code serves Lafayette and surrounding areas in Louisiana. It operates within the Central Time (CT) time zone. This area code covers several key cities, including:
- Lafayette
- Lake Charles
- New Iberia
- Sulphur
- Youngsville
- Broussard
Got a call from a 337 number? It came from Lafayette, LA. No other area code overlaps the 337 territory, so the prefix alone identifies where the caller is. Inside 337, Lafayette holds about 22% of the population; the rest is split across 95 smaller cities.
Lafayette Area Code Overview
The 337 area code provides comprehensive telephone coverage for Lafayette and its surrounding communities. As the sole area code for this region, it uniquely identifies all local numbers within the service area.
What cities does area code 337 cover?
| City | State | Population | % of Area Code | % of City |
|---|---|---|---|---|
| Lafayette | LA | 122,280 | 0% | 100% |
| Lake Charles | LA | 81,157 | 0% | 100% |
| New Iberia | LA | 26,849 | 0% | 100% |
| Sulphur | LA | 20,572 | 0% | 100% |
| Youngsville | LA | 19,038 | 0% | 100% |
| Broussard | LA | 15,312 | 0% | 100% |
| Opelousas | LA | 15,176 | 0% | 100% |
| Carencro | LA | 12,883 | 0% | 100% |
| Moss Bluff | LA | 11,557 | 0% | 100% |
| Crowley | LA | 11,216 | 0% | 100% |
* Sources: Population – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). Area code assignments – NANPA CO Code data. See our data methodology.
Has area code 337 been reported for unwanted calls?
Yes – 362 unwanted-call complaints were reported to the FTC for numbers showing a 337 area code (May 29 – Jul 2, 2026).
- 59% robocalls
- ↓ 9% vs prior period
Most-reported subjects
- Other47%169
- Reducing your debt (credit cards, mortgage, student loans)14%51
- Calls pretending to be government, businesses, or family and friends11%41
* Caller ID is easily spoofed, so these figures reflect the number shown on caller ID, not the caller's true location – an area code alone never identifies a caller. The FTC does not verify the facts in these complaints. Source: FTC Do Not Call (DNC) Reported Calls Data, retrieved 2026-07-05.
Which prefixes and exchanges belong to area code 337?
57% assigned to a telco
- 66% Landline
- 34% Wireless
- 0% Unknown
| Prefix | Usage | Carrier |
|---|---|---|
| (337)200- | Wireless | Verizon Wireless |
| (337)201- | Wireless | Sprint Spectrum |
| (337)202- | Landline | Network Telephone |
| (337)203- | Wireless | New Cingular Wireless Pcs |
| (337)205- | Landline | Level 3 Communications |
| (337)206- | Landline | Advanced Tel. |
| (337)207- | Wireless | Verizon Wireless |
| (337)208- | Landline | Mtpcs |
| (337)209- | Landline | Advanced Tel. |
| (337)210- | Landline | Level 3 Communications |
Frequently Asked Questions about the 337 Area Code
Who called me from a 337 number?
A 337 number is assigned to Lafayette, Louisiana, so a call may come from there. But caller ID is easy to fake, and scammers often spoof a local 337 code to look nearby, so a 337 number doesn't prove the caller is local. Recently, 362 unwanted-call complaints were reported to the FTC for numbers showing the 337 code (59% flagged as robocalls). If you don't recognize the number, let it go to voicemail; a real caller will leave a message.
Is 337 a scam area code?
No area code is a scam on its own. 337 is a normal, officially assigned code for Lafayette, Louisiana. Spam callers spoof local codes to raise the odds you answer, so 337 on your caller ID says nothing about who is really calling. Recently, 362 unwanted-call complaints were reported to the FTC for numbers showing the 337 code (59% flagged as robocalls). Judge the call itself, not the area code.
Why do I keep getting calls from the 337 area code?
Repeated calls from different 337 numbers are usually spoofing: a robocaller rotates through 337 numbers so each call looks local and slips past simple blocks. Recently, 362 unwanted-call complaints were reported to the FTC for numbers showing the 337 code (59% flagged as robocalls). Blocking one number rarely helps; voicemail screening, your carrier spam filter, and the Do Not Call Registry work better.
Should I answer an unknown 337 number?
If you aren't expecting a 337 call, let it ring to voicemail. Legitimate callers leave a message, most robocallers hang up when no one picks up, and answering can mark your number as active and bring more calls.
How do I block calls from the 337 area code?
Block a single 337 number from your recent-calls list (iPhone: tap the number, then Block this Caller; Android: tap the number, then Block or report spam). To cut the volume, turn on Silence Unknown Callers on iPhone or spam protection on Android, enable spam filtering from your carrier, and register at DoNotCall.gov. Blocking the entire 337 code also stops legitimate local calls, so use it only as a last resort.
Where is area code 337?
Area code 337 covers Lafayette and the surrounding area in Louisiana, spanning 96 cities with about 545,810 residents. No other code overlays this region, so 337 alone identifies the area.
Is 337 a real area code?
Yes. 337 is an active code in the North American Numbering Plan, assigned by NANPA and in service for Lafayette, Louisiana. A real code can still show up on spoofed spam calls, so treat unknown 337 calls with normal caution.
What timezone is the 337 area code in?
The 337 area code is in the Central Time (CT). Because a number can be kept when someone moves or switches to VoIP, a specific 337 caller may not be in that zone.
How do I call a 337 number from abroad?
From outside the US, dial your country's exit code, then 1 (the US country code), then 337 and the seven-digit number. From a mobile phone you can usually just enter +1 337 followed by the number and let the phone add the exit code for you.