All assignees
583 prefixes in 504 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 504-300 | NEWORLEANS | 150C | 2010-10-12 | Yes |
| 504-301 | NEWORLEANS | 318J | — | Yes |
| 504-302 | NEWORLEANS | 318J | — | Yes |
| 504-303 | KENNER | 7421 | 2002-05-23 | Yes |
| 504-304 | NEWORLEANS | 318J | — | Yes |
| 504-305 | KENNER | 318J | — | Yes |
| 504-306 | KENNER | 7488 | 2005-07-20 | Yes |
| 504-307 | KENNER | 150C | 2008-01-28 | Yes |
| 504-308 | NEWORLEANS | 318J | — | Yes |
| 504-309 | NEWORLEANS | 318J | — | Yes |
| 504-310 | NEWORLEANS | 9419 | — | Yes |
| 504-311 | XXXXXXXXXX | MULT | — | — |
| 504-312 | NEWORLEANS | 9419 | 2005-10-20 | Yes |
| 504-313 | NEWORLEANS | 6505 | — | Yes |
| 504-314 | NEWORLEANS | 9419 | — | Yes |
| 504-315 | KENNER | 3232 | — | Yes |
| 504-316 | NEWORLEANS | 150C | 2011-10-20 | Yes |
| 504-317 | KENNER | 150C | 2011-03-11 | Yes |
| 504-318 | NEWORLEANS | 749E | 2023-12-10 | Yes |
| 504-319 | KENNER | 150C | — | Yes |
| 504-320 | LAFITTE | 5562 | — | Yes |
| 504-321 | NEWORLEANS | 3232 | — | Yes |
| 504-322 | NEWORLEANS | 3232 | 2006-03-07 | Yes |
| 504-323 | NEWORLEANS | 3232 | — | Yes |
| 504-324 | NEWORLEANS | 3232 | — | Yes |
| 504-325 | NEWORLEANS | 318J | — | Yes |
| 504-326 | NEWORLEANS | 150C | 2017-03-15 | Yes |
| 504-327 | KENNER | 150C | 2010-06-16 | Yes |
| 504-328 | NEWORLEANS | 9419 | — | — |
| 504-329 | NEWORLEANS | 150C | 2002-03-12 | Yes |
| 504-330 | NEWORLEANS | 6505 | 2006-03-28 | Yes |
| 504-331 | KENNER | 150C | 2008-03-03 | Yes |
| 504-332 | KENNER | 477H | 2017-07-14 | Yes |
| 504-333 | NEWORLEANS | 150C | 2006-01-05 | Yes |
| 504-334 | NEWORLEANS | 150C | 2017-03-16 | Yes |
| 504-335 | NEWORLEANS | 829J | 2005-08-11 | Yes |
| 504-336 | KENNER | 749E | — | Yes |
| 504-338 | KENNER | 150C | 2001-08-24 | Yes |
| 504-339 | KENNER | 150C | 2001-10-30 | — |
| 504-340 | NEWORLEANS | 9419 | — | — |
| 504-341 | NEWORLEANS | 9419 | — | — |
| 504-342 | NEWORLEANS | 9419 | — | Yes |
| 504-343 | NEWORLEANS | 6214 | — | — |
| 504-344 | NEWORLEANS | 150C | 2005-12-12 | Yes |
| 504-345 | NEWORLEANS | 150C | 2010-06-07 | Yes |
| 504-346 | KENNER | 150C | 2010-10-14 | Yes |
| 504-347 | NEWORLEANS | 9419 | — | — |
| 504-348 | NEWORLEANS | 9419 | — | — |
| 504-349 | NEWORLEANS | 9419 | — | — |
| 504-350 | NEWORLEANS | 3232 | 2017-08-23 | Yes |
| 504-351 | NEWORLEANS | 150C | 2011-10-20 | Yes |
| 504-352 | NEWORLEANS | 6505 | — | — |
| 504-353 | KENNER | 3232 | — | Yes |
| 504-354 | NEWORLEANS | 653C | 2017-09-15 | Yes |
| 504-355 | NEWORLEANS | 181D | 2006-03-09 | Yes |
| 504-356 | NEWORLEANS | 197D | 2017-12-14 | Yes |
| 504-357 | NEWORLEANS | 150C | 2011-08-31 | Yes |
| 504-358 | NEWORLEANS | 150C | 2007-05-31 | Yes |
| 504-359 | NEWORLEANS | 9419 | 2007-08-23 | Yes |
| 504-360 | KENNER | 150C | 2012-01-24 | Yes |
| 504-361 | NEWORLEANS | 9419 | — | — |
| 504-362 | NEWORLEANS | 9419 | — | — |
| 504-363 | NEWORLEANS | 9419 | — | Yes |
| 504-364 | NEWORLEANS | 9419 | — | — |
| 504-365 | NEWORLEANS | 9419 | — | Yes |
| 504-366 | NEWORLEANS | 9419 | — | — |
| 504-367 | NEWORLEANS | 9419 | — | — |
| 504-368 | NEWORLEANS | 9419 | — | — |
| 504-369 | NEWORLEANS | 996H | 2018-09-06 | Yes |
| 504-370 | LAFITTE | 749E | 2018-10-08 | Yes |
| 504-371 | NEWORLEANS | 9419 | — | Yes |
| 504-372 | NEWORLEANS | 318J | — | Yes |
| 504-373 | NEWORLEANS | 150C | 2006-02-22 | Yes |
| 504-374 | NEWORLEANS | 9419 | — | Yes |
| 504-375 | KENNER | 197D | 2018-12-18 | Yes |
| 504-376 | NEWORLEANS | 9419 | — | Yes |
| 504-377 | NEWORLEANS | 9419 | 2005-07-13 | Yes |
| 504-378 | NEWORLEANS | 829J | — | — |
| 504-379 | NEWORLEANS | 9419 | 2007-08-22 | Yes |
| 504-380 | NEWORLEANS | 8764 | 2019-01-10 | Yes |
| 504-381 | NEWORLEANS | 653C | 2019-10-21 | Yes |
| 504-382 | NEWORLEANS | 150C | — | Yes |
| 504-383 | NEWORLEANS | 749E | 2007-09-17 | Yes |
| 504-384 | NEWORLEANS | 114J | 2019-11-05 | Yes |
| 504-385 | KENNER | 150C | 2011-10-20 | Yes |
| 504-386 | NEWORLEANS | 425J | 2020-06-02 | Yes |
| 504-387 | NEWORLEANS | 515J | 2021-04-01 | Yes |
| 504-388 | NEWORLEANS | 6214 | — | Yes |
| 504-389 | NEWORLEANS | 321J | 2021-09-29 | Yes |
| 504-390 | NEWORLEANS | 6214 | — | — |
| 504-391 | NEWORLEANS | 9419 | — | — |
| 504-392 | NEWORLEANS | 9419 | — | — |
| 504-393 | NEWORLEANS | 9419 | — | — |
| 504-394 | NEWORLEANS | 9419 | — | — |
| 504-395 | VENICE | 153F | 2022-01-20 | Yes |
| 504-396 | NEWORLEANS | 490J | 2021-12-29 | Yes |
| 504-397 | KENNER | 150C | 2021-10-13 | Yes |
| 504-398 | NEWORLEANS | 9419 | — | Yes |
| 504-399 | NEWORLEANS | 749E | 2017-08-08 | Yes |
| 504-400 | NEWORLEANS | 6214 | — | — |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.