All assignees
779 prefixes in 318 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 318-400 | SHREVEPORT | 6916 | 2011-04-27 | Yes |
| 318-401 | SHREVEPORT | 7421 | — | Yes |
| 318-402 | SHREVEPORT | 3232 | 2002-04-29 | Yes |
| 318-403 | JONESVILLE | 6214 | — | Yes |
| 318-404 | SHREVEPORT | 6916 | 2002-10-18 | Yes |
| 318-405 | ST LANDRY | 6214 | 2003-02-19 | Yes |
| 318-406 | LECOMPTE | 3232 | 2004-10-20 | Yes |
| 318-407 | COLFAX | 6505 | 2003-05-22 | Yes |
| 318-408 | SHREVEPORT | 153F | 2003-05-21 | Yes |
| 318-409 | MARKSVILLE | 749E | 2016-03-08 | Yes |
| 318-410 | MONROE | 9419 | — | — |
| 318-411 | XXXXXXXXXX | MULT | — | — |
| 318-412 | WINNSBORO | 9419 | — | Yes |
| 318-413 | WINNFIELD | 6505 | 2003-05-22 | Yes |
| 318-414 | VIDALIA | 653C | 2009-06-08 | Yes |
| 318-415 | SHREVEPORT | 829J | — | Yes |
| 318-416 | ALEXANDRIA | 5562 | — | Yes |
| 318-417 | RAYVILLE | 6505 | 2003-05-22 | Yes |
| 318-418 | LKPROVIDNC | 6505 | 2003-05-22 | — |
| 318-419 | ALEXANDRIA | 6214 | — | — |
| 318-420 | ALEXANDRIA | 9419 | — | — |
| 318-421 | MONTEREY | 6214 | 2002-04-19 | Yes |
| 318-422 | SHREVEPORT | 6505 | — | — |
| 318-423 | SHREVEPORT | 6505 | — | — |
| 318-424 | SHREVEPORT | 9419 | 2001-05-11 | — |
| 318-425 | SHREVEPORT | 9419 | 2001-05-11 | Yes |
| 318-426 | SHREVEPORT | 6214 | — | — |
| 318-427 | ALEXANDRIA | 9419 | — | Yes |
| 318-428 | OAK GROVE | 9419 | — | Yes |
| 318-429 | SHREVEPORT | 9419 | 2001-05-11 | — |
| 318-430 | HORNBECK | 6214 | 2003-05-30 | Yes |
| 318-431 | MANY | 6214 | 2009-06-09 | Yes |
| 318-432 | MONROE | 9419 | 2009-02-18 | Yes |
| 318-433 | HAYNESVL | 6505 | 2003-05-20 | Yes |
| 318-434 | TALLULAH | 6505 | 2003-05-22 | Yes |
| 318-435 | WINNSBORO | 9419 | — | Yes |
| 318-436 | RUSTON | 5562 | 2002-12-03 | Yes |
| 318-437 | FERRIDAY | 516C | 2011-11-03 | Yes |
| 318-438 | NATCHITCHS | 6214 | — | Yes |
| 318-439 | WINNSBORO | 6505 | 2003-05-22 | — |
| 318-440 | BLANCHARD | 624H | 2022-09-02 | Yes |
| 318-441 | ALEXANDRIA | 9419 | — | Yes |
| 318-442 | ALEXANDRIA | 9419 | — | Yes |
| 318-443 | ALEXANDRIA | 9419 | — | — |
| 318-444 | XXXXXXXXXX | 9419 | — | — |
| 318-445 | ALEXANDRIA | 9419 | — | — |
| 318-446 | ALEXANDRIA | 6505 | — | — |
| 318-447 | ALEXANDRIA | 6214 | — | — |
| 318-448 | ALEXANDRIA | 9419 | — | Yes |
| 318-449 | ALEXANDRIA | 9419 | — | Yes |
| 318-450 | MONROE | 3232 | 2002-04-29 | Yes |
| 318-451 | ALEXANDRIA | 6505 | — | — |
| 318-452 | ALEXANDRIA | 6214 | — | — |
| 318-453 | SHREVEPORT | 6505 | — | — |
| 318-454 | SHREVEPORT | 128L | 2025-12-23 | Yes |
| 318-455 | SHREVEPORT | 6505 | — | — |
| 318-456 | SHREVEPORT | 9419 | — | — |
| 318-457 | SHREVEPORT | 7229 | 2025-03-27 | Yes |
| 318-458 | SHREVEPORT | 6214 | — | — |
| 318-459 | SHREVEPORT | 9419 | 2001-05-11 | Yes |
| 318-460 | MONROE | 181D | 2015-01-22 | Yes |
| 318-461 | MANSFIELD | 3232 | 2002-04-29 | Yes |
| 318-462 | JONESBORO | 829J | 2003-01-30 | Yes |
| 318-463 | OAKDALE | 6916 | 2002-12-19 | Yes |
| 318-464 | SHREVEPORT | 6505 | — | — |
| 318-465 | SHREVEPORT | 6505 | — | — |
| 318-466 | ALEXANDRIA | 9419 | — | Yes |
| 318-467 | NEWELLTON | 9419 | — | Yes |
| 318-468 | GRAMBLING | 829J | 2003-01-30 | — |
| 318-469 | SHREVEPORT | 6214 | — | — |
| 318-470 | SHREVEPORT | 6214 | — | — |
| 318-471 | NATCHITCHS | 6505 | — | — |
| 318-472 | ROBELINE | 9419 | — | Yes |
| 318-473 | ALEXANDRIA | 9419 | — | Yes |
| 318-474 | TALLULAH | 6214 | 2003-07-10 | Yes |
| 318-475 | JONESBORO | 6505 | 2003-05-22 | Yes |
| 318-476 | CAMPTI | 0426 | — | — |
| 318-477 | MANGHAM | 6214 | 2004-03-16 | Yes |
| 318-478 | BERNICE | 6505 | 2003-05-22 | Yes |
| 318-479 | FLORIEN | 3232 | 2002-04-29 | Yes |
| 318-480 | JONESBORO | 3232 | 2002-04-29 | Yes |
| 318-481 | ALEXANDRIA | 6214 | — | — |
| 318-482 | TALLULAH | 6916 | 2002-12-19 | Yes |
| 318-483 | ALEXANDRIA | 9419 | — | Yes |
| 318-484 | ALEXANDRIA | 9419 | — | Yes |
| 318-485 | OAKDALE | 5562 | 2002-12-30 | Yes |
| 318-486 | RUSTON | 6916 | 2026-09-01 | Yes |
| 318-487 | ALEXANDRIA | 9419 | — | Yes |
| 318-488 | DELHI | 6505 | 2003-05-27 | Yes |
| 318-489 | BLANCHARD | 6214 | 2004-01-28 | Yes |
| 318-490 | OAK GROVE | 3232 | 2002-04-29 | Yes |
| 318-491 | OAKDALE | 3232 | 2002-04-29 | Yes |
| 318-493 | TALLULAH | 6916 | 2002-12-30 | Yes |
| 318-494 | CONVERSE | 749E | — | Yes |
| 318-495 | OLLA | 0434 | — | Yes |
| 318-496 | OAK RIDGE | 6214 | 2009-08-25 | Yes |
| 318-497 | RUSTON | 3232 | 2002-07-24 | Yes |
| 318-498 | WINNSBORO | 6214 | 2003-05-30 | Yes |
| 318-499 | MER ROUGE | 6214 | 2003-05-30 | Yes |
| 318-500 | MARKSVILLE | 6505 | 2011-03-01 | Yes |
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.