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Area code 337

Area code 337 serves Louisiana, including Lafayette, Lake Charles and New Iberia (Central time). It has been in service since October 11, 1999.

Numbers starting with 337 drew 1,150 reports to the FTC from Aug 14, 2026 to Nov 11, 2026 and 350 complaints to the FCC since November 2023. The number on your screen can be faked, so a 337 number proves nothing about where a call came from.

Location
LouisianaBaton Rouge, LA Metropolitan Statistical Area
Time zone
Central
In service since
October 11, 1999Created from 318
Overlay
None: the only code for its area
Local calls
Dial 10 digitsArea code needed, even next door
Exchanges in use
599 of 792held by 50 carriers
Projected to run out
3Q 2056NANPA forecast 2026.2

Complaints about 337 numbers

Reports where the number on the consumer's caller ID (or, for the FCC, the number the caller asked them to call back) starts with 337. These are counts of what people reported; the agencies do not verify them.

FTC reports, Aug 14, 2026 to Nov 11, 2026

1,150

FCC complaints since November 2023

350

Different 337 numbers reported

1,408

FCC complaints naming a 337 number, by month

November 2023 to October 2026. Source: FCC Consumer Complaints Data.

Show as a table
MonthComplaints
November 20234
December 20235
January 20247
February 20247
March 20242
April 20247
May 202411
June 20247
July 20243
August 20249
September 20245
October 202410
November 20249
December 20246
January 202541
February 202516
March 202512
April 20255
May 202511
June 202517
July 202513
August 20258
September 20259
October 20251
November 20253
December 20258
January 20264
February 202615
March 20262
April 20264
May 20269
June 20266
July 202612
August 20269
September 202615
October 202628

What people said 337 calls were about

Subjects picked in FTC reports, August 14, 2026 to November 11, 2026. 831 of 1,150 reports were robocalls.

Show as a table
SubjectReports
Other452
Reducing your debt (credit cards, mortgage, student loans)292
Calls pretending to be government, businesses, or family and friends116
Medical and prescriptions91
Dropped call or no message77
Warranties and protection plans32

Places served by 337

NANPA lists 75 rate centers for 337. A rate center is the town or district a block of numbers is tied to for billing; sorted here by how many exchanges each holds.
  • Lafayette130
  • Lake Charles80
  • New Iberia28
  • Leesville22
  • Opelousas21
  • Abbeville18
  • Crowley15
  • Sulphur15
  • De Ridder13
  • Broussard10
  • Jennings10
  • Breaux Bridge9
  • Carencro9
  • Eunice9
  • Franklin8
  • Saint Martinville8
  • Ville Platte8
  • Jeanerette7
  • Youngsville7
  • Baldwin6
  • Carlyss6
  • Gueydan6
  • Rayne6
  • Centerville5
Show all 75 rate centers

De Quincy, Iowa, Sweet Lake, Vinton, Duson, Erath, Kaplan, Merryville, Oberlin, Welsh, Arnaudville, Basile, Cameron, Cecelia, Church Point, Elton, Hayes, Henderson, Kinder, Krotz Springs, Lake Arthur, Lawtell, Leonville, Loreauville, Melville, Parks, Port Barre, Ragley, Reeves, Sunset, Turkey Creek, Washington, Weeks Island, Cankton, Chataignier, Delcambre, Hackberry, Iota, Johnsons Bayou, Lacassine, Mamou, Pine Prairie, Roanoke, Starks, Sugartown, Creole, Fenton, Forked Island, Grand Chenier, Pecan Island, Thornwell.

Phone companies holding 337 exchanges

Each exchange (the three digits after the area code) is assigned to one carrier. 71% of these exchanges are pooled: their numbers are handed out in blocks of 1,000 to other carriers, so the holder below is not always the company serving a given number.

Exchanges held, top 8 of 50 carriers

NANPA central office code assignments, file of November 11, 2026.

Show as a table
Carrier (legal name)Exchanges
Bellsouth Telecomm Inc dba South Central Bell Tel138
New Cingular Wireless PCS, LLC - GA98
Cellco Partnership dba Verizon Wireless - LA53
Paetec Itel, LLC34
Brightspeed of Louisiana, LLC33
Onvoy, LLC - LA28
Level 3 Communications, LLC - LA24
Metropcs, Inc.24

When today's 337 exchanges were assigned

Exchanges still assigned, by year of assignment. Exchanges returned since are not counted.

Show as a table
YearExchanges
200127
200235
200326
200426
200526
20066
20077
20086
20097
20103
20115
20122
20133
20144
20157
20169
20177
20182
201911
20204
20219
202221
202318
20248
20251
20263

Check a 337 number

A check shows the carrier and rate center of the number's exchange and every FTC and FCC report about that exact number. Why the number on screen can be fake.

Other area codes in Louisiana

NANPA area code database and central office code file of November 11, 2026; FCC complaints November 1, 2023 to November 11, 2026; FTC reports August 14, 2026 to November 11, 2026. How the data is used.

Official sources (7)Show