NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

Area code 337 prefixes

599 of the 786 possible NXX blocks are assigned in area code 337 (76.2% of capacity), spread across 75 rate centers and 50 holders. The largest holders are BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (139 blocks, 23.2%), NEW CINGULAR WIRELESS PCS, LLC - GA (98 blocks, 16.4%), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA (53 blocks, 8.8%). Grouped by brand, AT&T accounts for 251 blocks; brand-attributable holders cover 85% of the code, and the rest are CLECs, VoIP wholesalers and regional carriers that trade under their own names. The assignment records here run from 2001-01-09 to 2026-03-27, with 35 blocks handed out in 2002 alone. 428 blocks (71%) are in thousands-block pooling, meaning the block is shared between carriers in 1,000-number lots rather than held whole – which is why a single NXX can serve several carriers at once. 69 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.

599 assigned blocks of 786
75 rate centers
50 holders of record
71% in thousands-block pooling

Largest holders in 337

Holder of record, as NANPA names itBrandBlocksShare
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL AT&T 139 23.2%
NEW CINGULAR WIRELESS PCS, LLC - GA AT&T 98 16.4%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA Verizon 53 8.8%
PAETEC ITEL, LLC Windstream 34 5.7%
BRIGHTSPEED OF LOUISIANA, LLC Brightspeed 33 5.5%
ONVOY, LLC - LA Onvoy 28 4.7%
METROPCS, INC. T-Mobile 24 4%
LEVEL 3 COMMUNICATIONS, LLC - LA Lumen 24 4%
COMCAST IP PHONE, LLC Comcast 22 3.7%
VOICESTREAM GSM I, LLC – 19 3.2%
TON80 COMMUNICATIONS, LLC – 13 2.2%
TELEPORT COMMUNICATIONS AMERICA LA - LLC AT&T 10 1.7%

Names are printed as they appear in the assignment records, which is the legal entity rather than the brand. Holding a block is not the same as serving the numbers in it: portability moves numbers between carriers and pooling splits a block between several.

Rate centers with their own page

Rate centers where at least three blocks are assigned, excluding the numbered metro zone codes. The remainder are in the full table below.

All 599 assigned blocks

One row per NXX. “Pooled” means carriers draw 1,000-number lots from the block rather than holding all 10,000, so a pooled prefix can belong to several carriers at once. “Not in service” means assigned but not yet open for calls – a caller ID from one of those is necessarily spoofed. The holder column gives the brand where the legal entity maps to one; the full legal names are in the holders table above, exactly as NANPA records them.

PrefixHolder of recordRate centerAssignedPooledIn service
337-200 Verizon BASILE 2004-03-16 yes yes
337-201 T-Mobile NEW IBERIA – yes yes
337-202 Windstream DE RIDDER – yes yes
337-203 AT&T LACASSINE 2022-09-07 yes yes
337-205 Lumen LAFAYETTE – yes yes
337-206 ADVANCED TEL., INC. - LA OPELOUSAS – – yes
337-207 Verizon LAFAYETTE – – yes
337-208 AT&T LEESVILLE – – yes
337-209 ADVANCED TEL., INC. - LA NEW IBERIA – – yes
337-210 Lumen LAFAYETTE – yes yes
337-212 T-Mobile LAFAYETTE – yes yes
337-213 T-Mobile LEESVILLE 2002-12-19 yes yes
337-214 Lumen LK CHARLES – yes yes
337-215 T-Mobile SULPHUR – yes yes
337-216 AT&T LAFAYETTE – yes yes
337-217 AT&T LK CHARLES – – yes
337-218 T-Mobile JENNINGS 2003-03-12 yes yes
337-219 Spok LK CHARLES – – yes
337-220 Lumen TURKEY CRK – yes yes
337-221 Windstream DE RIDDER 2013-05-31 yes yes
337-222 T-Mobile DE QUINCY 2004-03-19 yes yes
337-223 Verizon GUEYDAN 2002-05-03 yes yes
337-224 Verizon LAFAYETTE – – yes
337-225 KAPLAN TEL. CO. KAPLAN – – yes
337-226 Verizon DE RIDDER 2011-03-10 yes yes
337-227 Verizon CHURCH PT 2004-03-16 yes yes
337-228 Brightspeed HENDERSON – – yes
337-229 AT&T LOREAUVL – yes yes
337-230 Verizon LAFAYETTE – – yes
337-231 AT&T LAFAYETTE – yes yes
337-232 AT&T LAFAYETTE – – yes
337-233 AT&T LAFAYETTE – – yes
337-234 AT&T LAFAYETTE – – yes
337-235 AT&T LAFAYETTE – – yes
337-236 AT&T LAFAYETTE – yes yes
337-237 AT&T LAFAYETTE – – yes
337-238 AT&T LEESVILLE – yes yes
337-239 AT&T LEESVILLE – – yes
337-240 AT&T LK CHARLES 2002-04-04 yes yes
337-241 Verizon JEANERETTE 2002-02-13 – yes
337-242 AT&T STMARTINVL 2015-11-23 yes yes
337-243 Onvoy CENTERVL 2016-03-18 yes yes
337-244 Verizon LK CHARLES 2005-03-10 – yes
337-245 AT&T SWEET LAKE 2009-07-01 yes yes
337-246 AT&T JENNINGS 2001-03-14 yes yes
337-247 Verizon LAFAYETTE 2001-05-23 yes yes
337-248 ADVANCED TEL., INC. - LA BROUSSARD 2001-09-24 – yes
337-249 T-Mobile SWEET LAKE 2001-03-09 yes yes
337-250 AT&T CROWLEY – yes yes
337-251 T-Mobile NEW IBERIA 2001-03-14 yes yes
337-252 AT&T BROUSSARD 2013-11-08 yes yes
337-253 Comcast NEW IBERIA – – yes
337-254 AT&T LAFAYETTE 2001-06-15 yes yes
337-255 VOICESTREAM GSM I, LLC LAFAYETTE 2001-08-23 – yes
337-256 AT&T NEW IBERIA 2001-10-18 yes yes
337-257 AT&T LAFAYETTE 2001-06-28 – yes
337-258 AT&T LAFAYETTE 2001-10-18 – yes
337-259 HD CARRIER LLC LAFAYETTE 2023-03-10 yes yes
337-261 AT&T LAFAYETTE – – yes
337-262 AT&T LAFAYETTE – – yes
337-263 Verizon LK CHARLES 2001-05-15 – yes
337-264 AT&T LAFAYETTE – yes yes
337-265 AT&T LAFAYETTE – yes yes
337-266 AT&T LAFAYETTE – yes yes
337-267 AT&T LAFAYETTE – yes yes
337-268 AT&T LAFAYETTE – yes yes
337-269 AT&T LAFAYETTE – – yes
337-270 EXIANT COMMUNICATIONS LLC LAFAYETTE 2019-11-05 yes yes
337-271 Spok LAFAYETTE – – yes
337-272 AT&T LAFAYETTE – yes yes
337-273 AT&T LAFAYETTE – yes yes
337-274 T-Mobile LK CHARLES 2001-06-28 yes yes
337-275 AT&T JENNINGS 2001-09-17 yes yes
337-276 AT&T JEANERETTE – yes yes
337-277 Verizon LAFAYETTE – – yes
337-278 AT&T LAFAYETTE – – yes
337-279 AT&T LAFAYETTE 2001-08-06 yes yes
337-280 AT&T LAFAYETTE – – yes
337-281 Verizon LAFAYETTE 2005-02-23 – yes
337-282 AT&T GUEYDAN 2017-03-30 yes yes
337-283 Comcast ABBEVILLE 2017-12-05 yes yes
337-284 Lumen OPELOUSAS 2010-02-17 yes yes
337-285 Comcast KAPLAN – yes yes
337-286 AT&T LEESVILLE – yes yes
337-287 AT&T SULPHUR 2001-06-15 yes yes
337-288 AT&T LAFAYETTE – – yes
337-289 AT&T LAFAYETTE – – yes
337-290 AT&T OPELOUSAS 2001-09-17 yes yes
337-291 AT&T LAFAYETTE – yes yes
337-292 VOICESTREAM GSM I, LLC LK CHARLES 2001-11-01 yes yes
337-293 Spok LAFAYETTE – – yes
337-294 AT&T LAFAYETTE – yes yes
337-295 AT&T LAFAYETTE – yes yes
337-296 Verizon LAFAYETTE 2001-11-20 – yes
337-297 Spok LAFAYETTE – – yes
337-298 AT&T LAFAYETTE – – yes
337-299 Spok LAFAYETTE – – yes
337-300 VOICESTREAM GSM I, LLC ELTON 2004-03-19 yes yes
337-301 Verizon ELTON 2004-03-16 yes yes
337-302 AT&T LK CHARLES – – yes
337-303 AT&T LAFAYETTE – yes yes
337-304 AT&T LK CHARLES 2001-01-31 – yes
337-305 Verizon EUNICE 2002-05-03 yes yes
337-306 Verizon RAYNE 2002-05-03 yes yes
337-307 Verizon KROTZ SPG 2002-05-03 yes yes
337-308 AT&T OPELOUSAS 2002-04-09 yes yes
337-309 AT&T LK CHARLES 2002-04-09 yes yes
337-310 Lumen LK CHARLES – – yes
337-312 Lumen LK CHARLES 2001-06-12 yes yes
337-313 Lumen SULPHUR 2003-08-08 yes yes
337-314 Windstream LAFAYETTE – – yes
337-315 AT&T LAFAYETTE 2001-10-26 yes yes
337-316 T-Mobile LAFAYETTE 2001-09-17 yes yes
337-317 AT&T DE QUINCY 2004-03-16 yes yes
337-318 Onvoy LEESVILLE 2024-04-18 yes yes
337-319 T-Mobile LAFAYETTE – yes yes
337-320 VOICESTREAM GSM I, LLC OBERLIN 2004-03-19 yes yes
337-321 AT&T NEW IBERIA 2002-04-04 yes yes
337-322 AT&T LAFAYETTE 2001-04-17 yes yes
337-323 Windstream OPELOUSAS 2002-10-07 yes yes
337-324 AT&T VINTON 2002-04-19 yes yes
337-325 ADVANCED TEL., INC. - LA CARENCRO 2002-04-22 – yes
337-326 Lumen LAFAYETTE 2002-04-29 yes yes
337-327 Windstream CROWLEY 2002-10-07 yes yes
337-328 ELIZABETH TEL. CO. SUGARTOWN – – yes
337-329 Verizon JENNINGS 2002-05-03 yes yes
337-330 Windstream BROUSSARD 2001-04-11 yes yes
337-331 Verizon OPELOUSAS 2002-05-03 yes yes
337-332 Brightspeed BREAUX BDG – – yes
337-333 Windstream RAYNE 2005-04-26 yes yes
337-334 AT&T RAYNE – yes yes
337-335 T-Mobile NEW IBERIA 2003-04-14 yes yes
337-336 Verizon VL PLATTE 2004-03-16 yes yes
337-337 Onvoy LEESVILLE 2022-09-27 yes yes
337-338 T-Mobile WELSH 2004-03-19 yes yes
337-339 Verizon JEANERETTE 2003-03-03 yes yes
337-340 Verizon MERRYVILLE 2002-04-19 yes yes
337-341 CEBRIDGE TELECOM LA, LLC D/B/A SUDDENLINK COMM LA STMARTINVL 2024-03-14 yes yes
337-342 AT&T STMARTINVL 2002-08-20 yes yes
337-343 T-Mobile DE RIDDER 2002-12-19 yes yes
337-344 AT&T LAFAYETTE – – yes
337-345 Onvoy LAFAYETTE 2017-09-26 yes yes
337-346 Verizon FRANKLIN 2003-03-03 yes yes
337-347 Verizon LAFAYETTE 2003-08-22 yes yes
337-348 VOICESTREAM GSM I, LLC DE RIDDER 2002-12-30 yes yes
337-349 AT&T LAFAYETTE – yes yes
337-350 AT&T CENTERVL 2003-01-30 yes yes
337-351 AT&T OPELOUSAS – – yes
337-352 Verizon NEW IBERIA 2003-03-03 yes yes
337-353 AT&T LEESVILLE 2003-04-16 – yes
337-354 AT&T LAFAYETTE 2003-04-23 yes yes
337-355 ADVANCED TEL., INC. - LA FRANKLIN 2002-04-22 – yes
337-356 AT&T LAFAYETTE 2003-09-17 yes yes
337-357 Verizon WEEKS IS 2003-03-03 yes yes
337-358 AT&T IOWA 2004-03-16 yes yes
337-359 AT&T NEW IBERIA – yes yes
337-360 Brightspeed VL PLATTE – – yes
337-361 Comcast ERATH 2017-12-14 yes yes
337-362 Bandwidth LAFAYETTE 2003-05-21 yes yes
337-363 Brightspeed VL PLATTE – – yes
337-364 AT&T NEW IBERIA – – yes
337-365 AT&T NEW IBERIA – – yes
337-366 Verizon LAFAYETTE 2003-06-27 yes yes
337-367 AT&T NEW IBERIA – – yes
337-368 AT&T JENNINGS 2003-08-05 yes yes
337-369 AT&T NEW IBERIA – yes yes
337-370 T-Mobile JENNINGS 2001-01-09 yes yes
337-371 AT&T LAFAYETTE 2003-05-23 yes yes
337-372 AT&T MERRYVILLE 2003-05-20 yes yes
337-373 AT&T NEW IBERIA – yes yes
337-374 AT&T NEW IBERIA – yes yes
337-375 Verizon DE RIDDER 2003-09-17 yes yes
337-376 Lumen NEW IBERIA 2003-09-17 yes yes
337-377 T-Mobile LK CHARLES 2003-09-17 yes yes
337-378 Lumen LEESVILLE 2003-09-17 yes yes
337-379 T-Mobile IOWA 2004-03-19 yes yes
337-380 AT&T NEW IBERIA – – yes
337-381 Lumen OPELOUSAS 2003-09-17 yes yes
337-382 AT&T ABBEVILLE 2017-03-08 yes yes
337-383 AT&T LEESVILLE – yes yes
337-384 AT&T CROWLEY 2003-09-17 yes yes
337-385 Windstream ABBEVILLE 2003-09-17 yes yes
337-386 Charter DE QUINCY – yes yes
337-387 VOICESTREAM GSM I, LLC WELSH 2004-03-19 yes yes
337-388 AT&T JENNINGS 2009-09-30 yes yes
337-389 VOICESTREAM GSM I, LLC OBERLIN 2004-03-19 yes yes
337-390 VOICESTREAM GSM I, LLC KINDER 2004-03-19 yes yes
337-391 VOICESTREAM GSM I, LLC IOWA 2004-03-19 yes yes
337-392 AT&T LEESVILLE – – yes
337-393 AT&T RAYNE 2004-03-22 yes yes
337-394 AT&T STMARTINVL – – yes
337-395 AT&T LK CHARLES 2004-08-12 – yes
337-396 AT&T DE RIDDER 2003-08-07 yes yes
337-397 Lumen LEESVILLE 2002-07-24 yes yes
337-398 Comcast CROWLEY 2017-12-14 yes yes
337-399 Vonage LAFAYETTE 2018-03-13 yes yes
337-400 AT&T ABBEVILLE 2012-08-20 yes yes
337-401 Lumen DE RIDDER 2002-07-24 yes yes
337-402 HUNT TELECOMMUNICATIONS, LLC - LA LAFAYETTE – – yes
337-403 AT&T HAYES – yes yes
337-404 Lumen LEESVILLE – yes yes
337-405 Windstream LK CHARLES – yes yes
337-406 AT&T LAFAYETTE – yes yes
337-407 AT&T OPELOUSAS – yes yes
337-408 Windstream LAFAYETTE – yes yes
337-409 Lumen VINTON 2004-10-20 yes yes
337-410 Verizon TURKEY CRK 2004-03-26 yes yes
337-412 Comcast LAFAYETTE – yes yes
337-413 AT&T FRANKLIN – yes yes
337-414 Verizon BREAUX BDG 2004-04-08 yes yes
337-415 Lumen SWEET LAKE 2004-10-20 yes yes
337-416 Verizon REEVES 2004-03-26 yes yes
337-417 Verizon LAFAYETTE – yes yes
337-418 Windstream OPELOUSAS – yes yes
337-419 AT&T LK CHARLES 2011-10-26 yes yes
337-420 Onvoy BALDWIN 2016-03-18 yes yes
337-421 AT&T LK CHARLES – – yes
337-422 Lumen ABBEVILLE 2002-07-24 yes yes
337-423 Lumen LEESVILLE 2002-12-30 yes yes
337-424 VOICESTREAM GSM I, LLC LEESVILLE 2002-12-30 yes yes
337-425 NUSO, LLC LK CHARLES – yes yes
337-426 Bandwidth LK CHARLES 2008-09-02 yes yes
337-427 Verizon RAYNE 2008-01-15 yes yes
337-428 AT&T JEANERETTE 2009-02-24 yes yes
337-429 Onvoy LK CHARLES – yes yes
337-430 AT&T LK CHARLES – – yes
337-431 AT&T LK CHARLES – – yes
337-432 Brightspeed BASILE – – yes
337-433 AT&T LK CHARLES – – yes
337-434 Comcast HENDERSON – yes yes
337-435 Charter LEONVILLE 2008-07-09 yes yes
337-436 AT&T LK CHARLES – – yes
337-437 AT&T LK CHARLES – – yes
337-438 AT&T LK CHARLES – yes yes
337-439 AT&T LK CHARLES – – yes
337-441 Verizon STMARTINVL 2002-05-03 yes yes
337-442 Comcast BREAUX BDG – yes yes
337-443 NUSO, LLC LAFAYETTE 2012-10-31 yes yes
337-444 Comcast PARKS – yes yes
337-445 Comcast BROUSSARD – yes yes
337-446 Onvoy LAFAYETTE 2009-01-02 yes yes
337-447 Lumen OPELOUSAS 2002-07-24 yes yes
337-448 Verizon MELVILLE 2002-05-20 yes yes
337-449 Comcast ARNAUDVL – yes yes
337-450 Consolidated YOUNGSVL 2017-12-20 yes yes
337-451 Comcast YOUNGSVL – yes yes
337-452 AT&T HAYES – yes yes
337-453 Onvoy LAFAYETTE 2008-09-25 yes yes
337-454 Comcast CECELIA – yes yes
337-455 Onvoy BREAUX BDG 2019-08-05 yes yes
337-456 Comcast LAFAYETTE – yes yes
337-457 AT&T EUNICE – – yes
337-458 Verizon CROWLEY 2002-05-03 yes yes
337-459 AT&T VL PLATTE 2005-02-18 yes yes
337-460 AT&T DE RIDDER – yes yes
337-461 Brightspeed TURKEY CRK – – yes
337-462 AT&T DE RIDDER – – yes
337-463 AT&T DE RIDDER – – yes
337-464 Windstream CARENCRO 2005-10-27 yes yes
337-465 Lumen NEW IBERIA 2002-07-24 yes yes
337-466 AT&T EUNICE 2005-12-19 yes yes
337-467 Verizon OPELOUSAS 2009-11-04 yes yes
337-468 Brightspeed MAMOU – yes yes
337-469 Consolidated CARENCRO 2018-09-26 yes yes
337-470 AT&T LAFAYETTE 2010-07-28 yes yes
337-471 AT&T FRANKLIN 2009-12-29 yes yes
337-472 Onvoy MAMOU 2019-08-05 yes yes
337-473 Onvoy RAGLEY 2019-08-05 yes yes
337-474 AT&T LK CHARLES – – yes
337-475 AT&T LK CHARLES – – yes
337-476 AT&T SULPHUR 2010-03-24 yes yes
337-477 AT&T LK CHARLES – – yes
337-478 AT&T LK CHARLES – – yes
337-479 AT&T LK CHARLES – – yes
337-480 AT&T LK CHARLES – – yes
337-481 Onvoy STARKS 2019-08-05 yes yes
337-482 AT&T LAFAYETTE – – yes
337-483 Telnyx LAFAYETTE 2019-11-20 yes yes
337-484 NUSO, LLC LAFAYETTE – yes yes
337-485 AT&T LK CHARLES – yes yes
337-486 AT&T STMARTINVL 2019-12-16 yes yes
337-487 AT&T LEESVILLE 2020-03-23 yes yes
337-488 AT&T LK CHARLES – yes yes
337-489 AT&T LK CHARLES – yes yes
337-490 Comcast DELCAMBRE – yes yes
337-491 AT&T LK CHARLES – – yes
337-492 Windstream NEW IBERIA – yes yes
337-493 AT&T LK CHARLES – – yes
337-494 AT&T LK CHARLES – – yes
337-495 AT&T DE RIDDER – yes yes
337-496 AT&T LK CHARLES – yes yes
337-497 AT&T LK CHARLES – – yes
337-499 AT&T LK CHARLES – – yes
337-500 GLOBAL DATA SYSTEMS, INC. - LA LAFAYETTE 2011-02-11 yes yes
337-501 AT&T LAFAYETTE – – yes
337-502 Windstream LK CHARLES – yes yes
337-503 Windstream SULPHUR 2005-10-27 – yes
337-504 Comcast LAFAYETTE – yes yes
337-505 Lumen LK CHARLES 2005-04-27 yes yes
337-506 Brightspeed VL PLATTE – – yes
337-507 Brightspeed BREAUX BDG – – yes
337-508 AT&T LK CHARLES 2014-03-06 yes yes
337-509 AT&T LEESVILLE 2014-10-08 yes yes
337-510 Verizon SUNSET 2007-07-17 yes yes
337-512 AT&T CARLYSS 2020-04-06 yes yes
337-513 Lumen LK CHARLES 2002-04-29 yes yes
337-514 Lumen CROWLEY 2002-07-24 yes yes
337-515 AT&T LK CHARLES – – yes
337-516 AT&T ABBEVILLE 2014-05-19 yes yes
337-517 Windstream ABBEVILLE – yes yes
337-518 DETEL WIRELESS, LLC - LA VL PLATTE 2016-10-20 yes yes
337-519 AT&T NEW IBERIA – – yes
337-520 AT&T CARENCRO 2015-05-15 yes yes
337-521 AT&T LAFAYETTE – yes yes
337-522 Verizon ABBEVILLE 2003-03-03 yes yes
337-523 Verizon ABBEVILLE – – yes
337-524 Comcast LAFAYETTE – yes yes
337-525 Lumen DE QUINCY 2020-04-06 yes yes
337-526 AT&T LK CHARLES – – yes
337-527 AT&T SULPHUR – – yes
337-528 AT&T SULPHUR – – yes
337-529 AT&T LK CHARLES – yes yes
337-531 AT&T LEESVILLE – – yes
337-532 AT&T LK CHARLES – yes yes
337-533 AT&T SULPHUR – – yes
337-534 Consolidated LAFAYETTE 2008-04-18 yes yes
337-535 AT&T LEESVILLE – – yes
337-536 AT&T GUEYDAN – yes yes
337-537 AT&T LEESVILLE – – yes
337-538 CAMERON TEL CO GRANDCHNIR – – yes
337-539 Onvoy GUEYDAN – yes yes
337-540 T-Mobile LK CHARLES – yes yes
337-541 Lumen LAFAYETTE 2014-06-11 yes yes
337-542 CAMERON TEL CO CREOLE – – yes
337-543 AT&T LAWTELL – yes yes
337-544 Verizon SUGARTOWN 2005-09-13 yes yes
337-545 AT&T CENTERVL 2020-09-01 yes yes
337-546 AT&T EUNICE – yes yes
337-547 Onvoy NEW IBERIA 2021-01-29 yes yes
337-548 Verizon LAKEARTHUR 2007-01-10 yes yes
337-549 CSC WIRELESS, LLC LK CHARLES 2019-03-28 yes yes
337-550 AT&T EUNICE – yes yes
337-551 AT&T NEW IBERIA 2008-04-30 yes yes
337-552 AT&T BROUSSARD 2006-04-19 yes yes
337-553 Verizon GUEYDAN 2021-02-10 yes yes
337-554 IP HORIZON LLC LAFAYETTE 2021-04-01 yes yes
337-556 Bandwidth CHURCH PT 2021-06-04 yes yes
337-557 AIRUS, INC. - LA LAFAYETTE 2021-08-12 yes yes
337-558 CAMERON TEL CO CARLYSS – – yes
337-559 Onvoy SWEET LAKE – yes yes
337-560 AT&T NEW IBERIA – – yes
337-561 Onvoy DUSON 2016-03-01 yes yes
337-562 AT&T LK CHARLES – – yes
337-563 T-Mobile CARLYSS 2005-09-02 yes yes
337-564 CEBRIDGE TELECOM LA, LLC D/B/A SUDDENLINK COMM LA LK CHARLES – yes yes
337-565 Comcast CARENCRO – yes yes
337-566 AT&T KROTZ SPG – yes yes
337-567 VOICESTREAM GSM I, LLC BREAUX BDG 2021-10-19 yes yes
337-568 Windstream LAFAYETTE 2022-03-30 yes yes
337-569 CAMERON TEL CO JOHNSOBYOU – – yes
337-570 AT&T LK CHARLES – yes yes
337-571 AT&T LAFAYETTE 2015-10-07 yes yes
337-572 AT&T LAFAYETTE – yes yes
337-573 AT&T YOUNGSVL 2011-02-07 yes yes
337-574 VOICESTREAM GSM I, LLC DE RIDDER 2022-02-24 yes yes
337-575 AT&T VINTON 2023-07-20 yes yes
337-576 Onvoy EUNICE 2023-08-11 yes yes
337-577 AT&T NEW IBERIA – yes yes
337-578 AT&T BALDWIN – yes yes
337-579 AT&T JEANERETTE – yes yes
337-580 AT&T EUNICE – yes yes
337-581 AT&T CROWLEY – – yes
337-582 Brightspeed IOWA – – yes
337-583 CAMERON TEL CO CARLYSS – – yes
337-584 Brightspeed ELTON – – yes
337-585 AT&T PORT BARRE – yes yes
337-586 TON80 COMMUNICATIONS, LLC WEEKS IS 2022-01-27 yes yes
337-587 Brightspeed THORNWELL – yes yes
337-588 Brightspeed LACASSINE – yes yes
337-589 AT&T VINTON – – yes
337-590 Onvoy ABBEVILLE 2023-08-11 yes yes
337-591 Verizon LAFAYETTE 2007-02-20 – yes
337-592 AT&T KROTZ SPG – yes yes
337-593 AT&T LAFAYETTE – – yes
337-594 AT&T OPELOUSAS – yes yes
337-595 Bandwidth ABBEVILLE 2021-06-15 yes yes
337-596 Spok LK CHARLES – – yes
337-597 COMMIO, LLC BASILE 2023-08-22 yes yes
337-598 AT&T SWEET LAKE – – yes
337-599 Brightspeed PINEPRAIRI – yes yes
337-600 Onvoy ABBEVILLE 2015-09-15 yes yes
337-601 Onvoy HENDERSON 2023-08-22 yes yes
337-602 CEBRIDGE TELECOM LA, LLC D/B/A SUDDENLINK COMM LA LK CHARLES 2013-11-15 yes yes
337-603 AT&T EUNICE 2015-01-22 yes yes
337-604 Onvoy CECELIA 2023-08-22 yes yes
337-605 Verizon CAMERON 2005-08-12 yes yes
337-606 Windstream NEW IBERIA – yes yes
337-607 Lumen SULPHUR 2016-01-15 yes yes
337-608 Windstream NEW IBERIA – yes yes
337-609 Lumen LAFAYETTE 2016-02-22 yes yes
337-610 COMMIO, LLC IOWA 2023-09-07 yes yes
337-612 LOUISIANA COMPETITIVE TELECOMMUNICATIONS, INC. IOTA 2016-06-29 yes yes
337-613 COMMIO, LLC MELVILLE 2023-09-07 yes yes
337-614 LOUISIANA COMPETITIVE TELECOMMUNICATIONS, INC. CANKTON 2016-06-29 yes yes
337-615 COMMIO, LLC RAGLEY 2023-09-07 yes yes
337-616 AT&T JENNINGS – yes yes
337-617 Onvoy MERRYVILLE 2022-11-18 yes yes
337-618 VOICESTREAM GSM I, LLC BREAUX BDG 2023-10-05 yes yes
337-619 Onvoy YOUNGSVL 2024-07-03 yes yes
337-620 AT&T LAFAYETTE 2026-03-18 yes yes
337-622 Brightspeed HAYES – – yes
337-623 AT&T MELVILLE – yes yes
337-625 AT&T SULPHUR – – yes
337-626 AT&T SULPHUR – – yes
337-627 TON80 COMMUNICATIONS, LLC BREAUX BDG 2022-02-07 yes yes
337-628 Charter WASHINGTON 2006-10-23 yes yes
337-630 VOICESTREAM GSM I, LLC CAMERON 2005-09-02 yes yes
337-634 Dish LK CHARLES 2023-04-07 yes yes
337-636 Verizon JEANERETTE 2006-04-24 yes yes
337-637 Onvoy RAYNE 2022-11-18 yes yes
337-639 Brightspeed OBERLIN – – yes
337-642 KAPLAN TEL. CO. FORKED IS – – yes
337-643 KAPLAN TEL. CO. KAPLAN – – yes
337-645 Dish JOHNSOBYOU 2023-05-31 yes yes
337-651 Consolidated CROWLEY 2023-12-15 yes yes
337-652 KAPLAN TEL. CO. KAPLAN – – yes
337-653 AT&T LEESVILLE – – yes
337-654 AT&T LAFAYETTE – – yes
337-655 AT&T VL PLATTE 2006-05-22 yes yes
337-656 AT&T LK CHARLES – yes yes
337-658 Verizon LAFAYETTE – – yes
337-660 AT&T LK CHARLES – yes yes
337-661 AT&T LK CHARLES – yes yes
337-662 Brightspeed SUNSET – – yes
337-666 Brightspeed REEVES – yes yes
337-667 Brightspeed CECELIA – – yes
337-668 Brightspeed CANKTON – yes yes
337-674 TON80 COMMUNICATIONS, LLC SULPHUR 2022-01-27 yes yes
337-677 FRACTEL, LLC LK CHARLES 2019-09-05 yes yes
337-678 Charter OPELOUSAS 2006-10-05 yes yes
337-680 Lumen STMARTINVL 2002-04-29 yes yes
337-684 Brightspeed CHURCH PT – yes yes
337-685 DELCAMBRE TEL. CO. DELCAMBRE – – yes
337-688 FRACTEL, LLC LK CHARLES 2019-12-13 yes yes
337-690 IP HORIZON LLC LEONVILLE 2024-04-05 yes yes
337-691 IP HORIZON LLC PORT BARRE 2024-04-05 yes yes
337-692 AT&T OPELOUSAS – yes yes
337-693 VOICESTREAM GSM I, LLC LAFAYETTE – yes yes
337-701 Windstream EUNICE 2005-04-28 yes yes
337-702 Windstream LAKEARTHUR 2005-04-28 yes yes
337-703 AT&T LAFAYETTE 2016-06-23 yes yes
337-704 Windstream LAFAYETTE – yes yes
337-706 AT&T LAFAYETTE – yes yes
337-707 AT&T LK CHARLES 2009-07-20 yes yes
337-708 AT&T LK CHARLES – – yes
337-712 AT&T SULPHUR 2024-12-30 yes yes
337-713 American Messaging LAFAYETTE – – yes
337-714 Windstream BROUSSARD – yes yes
337-717 Windstream CROWLEY – yes yes
337-718 Windstream LEESVILLE – yes yes
337-721 AT&T LK CHARLES – – yes
337-722 TON80 COMMUNICATIONS, LLC LK CHARLES 2022-01-28 yes yes
337-724 Lumen CHATAIGNIR – yes yes
337-725 Brightspeed RAGLEY – yes yes
337-727 TON80 COMMUNICATIONS, LLC PINEPRAIRI 2022-01-27 yes yes
337-730 Charter OPELOUSAS 2023-06-30 yes yes
337-734 Brightspeed WELSH – – yes
337-735 Lumen LAFAYETTE – yes yes
337-737 KAPLAN TEL. CO. PECAN IS – – yes
337-738 Brightspeed KINDER – – yes
337-739 VOICESTREAM GSM I, LLC LAFAYETTE – yes yes
337-740 LOUISIANA COMPETITIVE TELECOMMUNICATIONS, INC. ABBEVILLE – – yes
337-742 TON80 COMMUNICATIONS, LLC BALDWIN 2022-02-22 yes yes
337-743 Brightspeed STARKS – yes yes
337-746 TON80 COMMUNICATIONS, LLC CARLYSS 2022-01-27 yes yes
337-748 TON80 COMMUNICATIONS, LLC WASHINGTON 2022-02-24 yes yes
337-749 Brightspeed REEVES 2007-10-30 yes yes
337-753 Brightspeed ROANOKE – yes yes
337-754 Brightspeed ARNAUDVL – – yes
337-756 Brightspeed FENTON – yes yes
337-757 IP HORIZON LLC CARENCRO 2024-03-29 yes yes
337-758 OPENTACT INC. LAFAYETTE 2026-03-27 yes yes
337-761 Lumen LAFAYETTE – yes yes
337-762 CAMERON TEL CO HACKBERRY – – yes
337-764 AT&T LK CHARLES – – yes
337-766 T-Mobile LAWTELL – yes yes
337-767 TON80 COMMUNICATIONS, LLC CROWLEY 2022-01-27 yes yes
337-768 TON80 COMMUNICATIONS, LLC ROANOKE 2022-02-22 yes yes
337-769 Lumen LAFAYETTE – yes yes
337-770 COMMIO, LLC LAFAYETTE 2022-04-19 yes yes
337-771 Charter PARKS 2023-06-30 yes yes
337-772 Windstream ABBEVILLE – yes yes
337-773 Charter BROUSSARD 2023-06-27 yes yes
337-774 AT&T LAKEARTHUR – – yes
337-775 CAMERON TEL CO CAMERON – – yes
337-777 Windstream PORT BARRE 2011-01-04 yes yes
337-779 Brightspeed IOTA – yes yes
337-780 VOICESTREAM GSM I, LLC LAFAYETTE 2001-10-26 yes yes
337-781 VOICESTREAM GSM I, LLC LAFAYETTE – yes yes
337-782 LOUISIANA COMPETITIVE TELECOMMUNICATIONS, INC. CROWLEY – – yes
337-783 AT&T CROWLEY – – yes
337-784 AT&T CROWLEY – yes yes
337-785 AT&T CROWLEY – yes yes
337-786 Brightspeed DE QUINCY – – yes
337-787 VOICESTREAM GSM I, LLC LAFAYETTE – yes yes
337-788 AT&T CROWLEY – yes yes
337-789 Verizon LAFAYETTE – yes yes
337-793 Verizon OPELOUSAS 2005-08-03 – yes
337-794 T-Mobile LK CHARLES – yes yes
337-796 T-Mobile HACKBERRY 2005-09-02 yes yes
337-799 TERRA NOVA TELECOM INC. LAFAYETTE 2022-06-29 yes yes
337-800 Onvoy ABBEVILLE 2015-02-24 yes yes
337-802 T-Mobile LK CHARLES – yes yes
337-803 Windstream DUSON 2005-04-26 yes yes
337-804 AT&T LAFAYETTE – yes yes
337-806 Lumen LAFAYETTE 2005-04-25 yes yes
337-809 Windstream FRANKLIN 2005-04-26 yes yes
337-818 Onvoy NEW IBERIA 2024-06-21 yes yes
337-821 AT&T JENNINGS – yes yes
337-822 NUSO, LLC LAFAYETTE 2025-01-24 yes yes
337-824 AT&T JENNINGS – – yes
337-825 AT&T MERRYVILLE – – yes
337-826 AT&T WASHINGTON – yes yes
337-828 AT&T FRANKLIN – – yes
337-829 AT&T FRANKLIN – yes yes
337-830 LOUISIANA COMPETITIVE TELECOMMUNICATIONS, INC. GUEYDAN – – yes
337-831 AT&T VL PLATTE – yes yes
337-832 TON80 COMMUNICATIONS, LLC STMARTINVL 2022-01-31 yes yes
337-836 AT&T CENTERVL – yes yes
337-837 AT&T BROUSSARD – – yes
337-839 AT&T BROUSSARD – – yes
337-841 Charter LAWTELL 2006-10-23 yes yes
337-842 AT&T LK CHARLES – – yes
337-845 Brightspeed PARKS – – yes
337-846 TON80 COMMUNICATIONS, LLC JEANERETTE 2022-01-27 yes yes
337-847 Onvoy ARNAUDVL – yes yes
337-848 TON80 COMMUNICATIONS, LLC SUNSET 2022-02-22 yes yes
337-849 AT&T LAFAYETTE – yes yes
337-851 AT&T LAFAYETTE – – yes
337-852 AT&T LAFAYETTE 2005-02-09 yes yes
337-853 AT&T LK CHARLES – – yes
337-855 AT&T LK CHARLES – – yes
337-856 AT&T YOUNGSVL – – yes
337-857 AT&T YOUNGSVL – yes yes
337-858 Windstream YOUNGSVL 2005-05-04 yes yes
337-867 AT&T WEEKS IS – yes yes
337-873 AT&T DUSON – yes yes
337-877 FRACTEL, LLC VINTON 2019-05-20 yes yes
337-879 AT&T LEONVILLE – yes yes
337-882 AT&T LK CHARLES – – yes
337-884 AT&T LK CHARLES – – yes
337-885 Brightspeed CHATAIGNIR – – yes
337-886 AT&T CARENCRO – yes yes
337-888 AT&T SULPHUR – yes yes
337-889 HUNT TELECOMMUNICATIONS, LLC - LA LAFAYETTE 2007-05-15 yes yes
337-892 AT&T ABBEVILLE – – yes
337-893 AT&T ABBEVILLE – – yes
337-895 Twilio LAFAYETTE 2021-12-07 yes yes
337-896 AT&T CARENCRO – – yes
337-898 AT&T ABBEVILLE – – yes
337-900 Onvoy SULPHUR 2015-03-20 yes yes
337-901 Charter LAFAYETTE 2021-04-14 yes yes
337-903 WAVENATION, LLC LAFAYETTE 2026-02-25 yes yes
337-904 Windstream LOREAUVL 2005-04-26 yes yes
337-905 LBH, LLC DBA CAMERON COMMUNICATIONS - LA LK CHARLES 2004-08-06 – yes
337-907 Comcast FRANKLIN – yes yes
337-909 Verizon BREAUX BDG 2007-06-15 yes yes
337-912 T-Mobile LK CHARLES – yes yes
337-915 Windstream CARENCRO 2005-04-26 yes yes
337-917 Windstream ERATH 2005-04-26 yes yes
337-918 Comcast ERATH – yes yes
337-920 AT&T LAFAYETTE – – yes
337-923 AT&T BALDWIN – yes yes
337-924 AT&T BALDWIN – yes yes
337-930 Verizon WELSH 2004-03-16 yes yes
337-935 Comcast DUSON – yes yes
337-936 Verizon LK CHARLES 2007-05-15 yes yes
337-937 AT&T ERATH – yes yes
337-940 AT&T BALDWIN 2005-02-09 yes yes
337-942 AT&T OPELOUSAS – – yes
337-943 AT&T OPELOUSAS – yes yes
337-944 Comcast LOREAUVL – yes yes
337-945 AT&T OPELOUSAS – – yes
337-946 COMMIO, LLC CENTERVL 2023-12-15 yes yes
337-948 AT&T OPELOUSAS – – yes
337-962 AT&T LAFAYETTE – – yes
337-965 AT&T CARLYSS 2005-08-12 yes yes
337-967 AT&T NEW IBERIA – yes yes
337-977 Verizon OBERLIN 2004-03-16 yes yes
337-981 AT&T LAFAYETTE – – yes
337-983 AT&T LAFAYETTE – yes yes
337-984 AT&T LAFAYETTE – – yes
337-988 AT&T LAFAYETTE – – yes
337-989 AT&T LAFAYETTE – yes yes
337-990 Windstream LK CHARLES 2001-06-12 yes yes
337-991 AT&T LAFAYETTE – yes yes
337-993 AT&T LAFAYETTE – – yes
337-998 Verizon KINDER 2004-03-16 yes yes
337-999 Bandwidth BROUSSARD – yes yes

Frequently asked

How many prefixes does area code 337 have?

599 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 5,990 thousand-number ranges across 75 rate centers.

What do the first three digits after 337 tell me?

They identify the block, which tells you the rate center it was allocated to and the carrier that received it. They do not tell you who serves the number today: portability moves numbers between carriers, and pooling splits a block between several of them.

Is a 337 prefix tied to a specific town?

To a rate center, which is billing geography rather than a town. NANPA abbreviates rate center names to ten characters and in large metros uses zone codes, so the name is a NANPA label, not a place name.

What does “pooled” mean in the 337 table?

That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 428 of 337's blocks are pooled, which is how regulators slowed down area code exhaustion – and why one prefix can belong to several carriers.

Source and limits

NANPA CO Code Assignment Records, all states, utilized codes, file updated 11/01/2026 – the rows where the record's Use field is “AS” (assigned). Unavailable codes are excluded. The records say who received a block and when, not who serves a particular number today.

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