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337 Area Code

Area code 337 serves Lafayette, Lake Charles, New Iberia, Sulphur, Youngsville and nearby communities in Louisiana. It has been in service since October 11, 1999, when it was split from 318.

StateLouisiana
Time zoneCentral
Local time now…
Prefixes in use599
Projected to run out2053
LafayetteLake CharlesNew IberiaSulphurYoungsvilleBroussardOpelousasCarencroMoss BluffCrowleyAbbevilleScottDeRidderJenningsEunicePrienBreaux BridgeRayneFranklinVille PlatteSt. MartinvilleLeesvilleCarlyssLafayetteLake CharlesNew IberiaOpelousasCarencroMoss Bluff
Cities and towns served by area code 337

Who issues 337 numbers

Mobile 26%VoIP and cable 19%Landline 55%

Share of the 599 prefixes (the three digits after 337) assigned to each type of carrier. Classification by carrier name, approximate.

CarrierPrefixes
South Central Bell Tel139
AT&T Mobility98
Verizon Wireless53
Paetec Itel34
Brightspeed Of Louisiana33
Onvoy (Sinch)33
Lumen (Level 3)31
Metropcs24

Cities and towns in area code 337

CityPopulationOther area codes
Lafayette123,311
Lake Charles82,676
New Iberia26,533
Sulphur20,492
Youngsville19,980
Broussard15,799
Opelousas15,098
Carencro13,224
Moss Bluff11,451
Crowley11,223
Abbeville10,861
Scott9,635
DeRidder9,503
Jennings9,235
Eunice9,035
Prien8,248
Breaux Bridge7,652
Rayne6,995
Franklin6,224
Ville Platte6,172
St. Martinville5,229
Leesville5,210
Carlyss5,184

Got a call from 337?

A 337 number was originally issued in Louisiana, but that does not prove the caller is there. 19% of 337 prefixes belong to VoIP and cable providers, whose numbers can be bought online and used from anywhere. Caller ID can also be spoofed, so treat urgent requests for money, codes or passwords from any area code with suspicion, and call back on a number you already know.

All 599 prefixes in area code 337

Format: (337) XXX-YYYY. Carrier is the company the block was originally assigned to; numbers may since have been ported to another carrier.

Questions about area code 337

Where is area code 337?
Area code 337 is in Louisiana. It covers Lafayette, Lake Charles, New Iberia, Sulphur, Youngsville, Broussard and 17 more cities and towns.
What time zone is area code 337?
Area code 337 is in the Central time zone.
Is 337 a toll-free number?
No. 337 is a geographic area code in Louisiana. Toll-free numbers in the US start with 800, 833, 844, 855, 866, 877 or 888.
Will area code 337 run out of numbers?
NANPA's latest forecast projects area code 337 to exhaust in the second quarter of 2053. Before that happens, a new area code is usually added as an overlay; existing numbers keep their code.

Other area codes in Louisiana