All assignees
779 prefixes in 318 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 318-300 | SHREVEPORT | 3232 | 2010-12-16 | Yes |
| 318-301 | ST JOSEPH | 6214 | 2002-04-04 | Yes |
| 318-302 | WINNFIELD | 3232 | 2002-08-19 | Yes |
| 318-303 | RAYVILLE | 3232 | 2002-04-29 | Yes |
| 318-304 | CALCASIEU | 749E | — | Yes |
| 318-305 | MARKSVILLE | 6505 | — | Yes |
| 318-306 | OAKDALE | 6505 | — | Yes |
| 318-307 | MONROE | 6505 | — | — |
| 318-308 | ALEXANDRIA | 6214 | — | — |
| 318-309 | BLANCHARD | 9419 | — | Yes |
| 318-310 | POLLOCK | 749E | — | Yes |
| 318-311 | XXXXXXXXXX | MULT | — | — |
| 318-312 | JENA | 6505 | 2001-05-30 | Yes |
| 318-313 | SHREVEPORT | 5562 | 2011-09-12 | Yes |
| 318-314 | ALEXANDRIA | 6916 | 2011-10-21 | Yes |
| 318-315 | MANY | 6505 | 2003-05-20 | Yes |
| 318-316 | JENA | 6214 | 2004-03-16 | — |
| 318-317 | SHREVEPORT | 6214 | 2011-10-21 | Yes |
| 318-318 | MONTGOMERY | 749E | 2025-12-22 | Yes |
| 318-319 | ALEXANDRIA | 6916 | 2011-10-20 | Yes |
| 318-320 | SHREVEPORT | 9419 | 2001-05-11 | — |
| 318-321 | ALEXANDRIA | 6214 | 2011-10-24 | Yes |
| 318-322 | MONROE | 9419 | — | — |
| 318-323 | MONROE | 9419 | — | — |
| 318-324 | MONROE | 9419 | — | Yes |
| 318-325 | MONROE | 9419 | — | — |
| 318-326 | PL DEALING | 0434 | — | Yes |
| 318-327 | MONROE | 9419 | — | Yes |
| 318-328 | SHREVEPORT | 733J | 2026-02-23 | Yes |
| 318-329 | MONROE | 9419 | — | Yes |
| 318-330 | MONROE | 9419 | — | Yes |
| 318-331 | MONROE | 6505 | — | — |
| 318-332 | NATCHITCHS | 6214 | 2001-03-27 | Yes |
| 318-333 | MANGHAM | 749E | 2019-03-06 | Yes |
| 318-334 | RAYVILLE | 6214 | 2001-03-14 | Yes |
| 318-335 | OAKDALE | 9419 | — | Yes |
| 318-336 | VIDALIA | 9419 | — | Yes |
| 318-337 | BENTON | 597F | 2026-07-22 | Yes |
| 318-338 | MONROE | 9419 | — | Yes |
| 318-339 | JONESVILLE | 9419 | — | Yes |
| 318-340 | MONROE | 9419 | — | Yes |
| 318-341 | TALLULAH | 6214 | 2001-03-14 | Yes |
| 318-342 | MONROE | 9419 | — | Yes |
| 318-343 | MONROE | 9419 | — | — |
| 318-344 | SHREVEPORT | 6916 | 2001-03-28 | Yes |
| 318-345 | MONROE | 9419 | — | — |
| 318-346 | BUNKIE | 9419 | — | Yes |
| 318-347 | SHREVEPORT | 6214 | — | — |
| 318-348 | MONROE | 6214 | — | — |
| 318-349 | SHREVEPORT | 6505 | 2001-05-07 | Yes |
| 318-350 | MONROE | 6214 | 2011-04-12 | Yes |
| 318-351 | BASTROP | 6505 | 2001-12-12 | Yes |
| 318-352 | NATCHITCHS | 9419 | — | — |
| 318-353 | LISBON | 9419 | — | Yes |
| 318-354 | NATCHITCHS | 9419 | — | Yes |
| 318-355 | MONROE | 6505 | — | — |
| 318-356 | NATCHITCHS | 9419 | — | Yes |
| 318-357 | NATCHITCHS | 9419 | — | — |
| 318-358 | PITKIN | 0430 | — | — |
| 318-359 | MARKSVILLE | 6214 | 2001-08-20 | Yes |
| 318-360 | MONROE | 2896 | 2002-10-07 | — |
| 318-361 | MONROE | 9419 | — | Yes |
| 318-362 | MONROE | 9419 | — | — |
| 318-363 | HEBRON | 6214 | 2004-03-16 | — |
| 318-364 | SHREVEPORT | 9419 | 2001-08-06 | Yes |
| 318-365 | ARCADIA | 1762 | 2001-12-19 | — |
| 318-366 | MONROE | 6505 | — | — |
| 318-367 | WINNSBORO | 5562 | 2001-11-29 | Yes |
| 318-368 | FARMERVL | 9419 | — | Yes |
| 318-369 | MONROE | 6916 | 2011-05-13 | Yes |
| 318-370 | DRY PRONG | 153F | — | Yes |
| 318-371 | MINDEN | 9419 | — | — |
| 318-372 | MONROE | 6505 | — | — |
| 318-373 | MONTGOMERY | 749E | — | Yes |
| 318-374 | JENA | 6214 | 2009-08-24 | Yes |
| 318-375 | VIVIAN | 0434 | — | Yes |
| 318-376 | MONROE | 6505 | — | — |
| 318-377 | MINDEN | 9419 | — | — |
| 318-378 | BELCHER | 0434 | — | Yes |
| 318-379 | NATCHITCHS | 9419 | — | Yes |
| 318-380 | MONROE | 6505 | — | Yes |
| 318-381 | MONROE | 6505 | — | Yes |
| 318-382 | MINDEN | 9419 | — | Yes |
| 318-383 | SHREVEPORT | 749E | 2015-11-23 | Yes |
| 318-384 | MONROE | 6214 | 2026-07-23 | Yes |
| 318-385 | ARCADIA | 9419 | — | Yes |
| 318-386 | MONTEREY | 9419 | — | Yes |
| 318-387 | MONROE | 9419 | — | — |
| 318-388 | MONROE | 9419 | — | — |
| 318-389 | SICILY IS | 9419 | — | Yes |
| 318-390 | HAUGHTON | 9419 | — | Yes |
| 318-391 | MINDEN | 6842 | — | — |
| 318-392 | COLFAX | 153F | — | Yes |
| 318-393 | SHREVEPORT | 6214 | — | — |
| 318-394 | RUSTON | 5562 | 2002-11-26 | Yes |
| 318-395 | JONESBORO | 9419 | — | Yes |
| 318-396 | MONROE | 9419 | — | — |
| 318-397 | MONROE | 9419 | — | — |
| 318-398 | MONROE | 9419 | — | Yes |
| 318-399 | SHREVEPORT | 3232 | — | 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.