All assignees
800 prefixes in 573 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 573-400 | WESTQUINCY | 093F | — | Yes |
| 573-401 | ST MARYS | 225F | — | Yes |
| 573-402 | WARDELL | 4932 | — | Yes |
| 573-403 | WYATT | 225F | — | Yes |
| 573-404 | QULIN | 093F | — | Yes |
| 573-405 | VIENNA | 5814 | 2004-03-10 | Yes |
| 573-406 | HANNIBAL | 9533 | — | Yes |
| 573-407 | CROCKER | 5814 | 2004-03-10 | Yes |
| 573-408 | DIXON | 5814 | 2004-03-10 | Yes |
| 573-409 | HERMANN | 7432 | 2013-10-21 | Yes |
| 573-410 | CAMDENTON | 6275 | 2015-03-11 | Yes |
| 573-411 | XXXXXXXXXX | MULT | — | — |
| 573-412 | PORTAGEVL | 4932 | 2013-08-13 | Yes |
| 573-413 | POPLAR BLF | 6534 | — | Yes |
| 573-414 | DEXTER | 6534 | — | Yes |
| 573-415 | JEFFERSNCY | 4932 | — | Yes |
| 573-416 | FULTON | 6275 | 2004-06-23 | Yes |
| 573-417 | LINN | 4932 | 2004-04-06 | Yes |
| 573-418 | JEFFERSNCY | 5814 | 2004-06-23 | Yes |
| 573-419 | CHAFFEE | 6534 | — | Yes |
| 573-420 | DIXON | 1885 | 2015-06-17 | Yes |
| 573-421 | DEXTER | 6534 | — | Yes |
| 573-422 | VIENNA | 9533 | — | Yes |
| 573-423 | BELLEVIEW | 093F | — | Yes |
| 573-424 | COLUMBIA | 6529 | — | Yes |
| 573-425 | HUNNEWELL | 093F | — | Yes |
| 573-426 | ROLLA | 3275 | — | Yes |
| 573-427 | CHARLESTON | 6534 | — | Yes |
| 573-428 | BIRCH TREE | 6534 | 2023-12-27 | Yes |
| 573-429 | POPLAR BLF | 6534 | — | Yes |
| 573-430 | FLAT RIVER | 6534 | 2016-03-07 | Yes |
| 573-431 | FLAT RIVER | 9533 | — | — |
| 573-432 | IRONTON | 093F | — | Yes |
| 573-433 | WAYNESVL | 4932 | 2002-06-04 | Yes |
| 573-434 | LKOZKOSBCH | 6529 | — | Yes |
| 573-435 | EDGAR SPG | 1151 | — | Yes |
| 573-436 | POTOSI | 1151 | — | Yes |
| 573-437 | OWENSVILLE | 1882 | — | Yes |
| 573-438 | POTOSI | 1151 | — | — |
| 573-439 | PHILA | 1914 | — | — |
| 573-440 | FREDERCKTN | 5814 | — | Yes |
| 573-441 | COLUMBIA | 9784 | — | — |
| 573-442 | COLUMBIA | 9784 | — | — |
| 573-443 | COLUMBIA | 9784 | — | — |
| 573-444 | FREDERCKTN | 5814 | — | Yes |
| 573-445 | COLUMBIA | 9784 | — | — |
| 573-446 | COLUMBIA | 9784 | — | — |
| 573-447 | COLUMBIA | 9784 | — | Yes |
| 573-448 | GIDEON | 9533 | — | Yes |
| 573-449 | COLUMBIA | 9784 | — | — |
| 573-450 | CAPEGIRARD | 6534 | — | — |
| 573-451 | ST ROBERT | 3275 | 2002-06-06 | Yes |
| 573-452 | FTLENARDWD | 3275 | 2002-06-06 | Yes |
| 573-453 | SALEM | 3275 | 2002-06-06 | Yes |
| 573-454 | FLAT RIVER | 993E | — | Yes |
| 573-455 | WESTPHALIA | 9533 | — | Yes |
| 573-456 | NEWBURG | 3275 | 2002-06-06 | Yes |
| 573-457 | SPRING BLF | 1882 | — | Yes |
| 573-458 | ROLLA | 1811 | — | Yes |
| 573-459 | LYON | 1882 | — | Yes |
| 573-460 | RICHLAND | 3275 | 2002-06-06 | Yes |
| 573-461 | CLEARWATER | 1874 | — | — |
| 573-462 | JEFFERSNCY | 6529 | — | Yes |
| 573-463 | BUNKER | 093F | — | Yes |
| 573-464 | CALIFORNIA | 4932 | 2004-12-30 | Yes |
| 573-465 | ROLLA | 5814 | — | — |
| 573-466 | ROLLA | 5814 | — | Yes |
| 573-467 | ROLLA | 6529 | — | Yes |
| 573-468 | SULLIVAN | 1882 | — | Yes |
| 573-469 | JEFFERSNCY | 7218 | 2008-06-05 | Yes |
| 573-470 | BOWLNGGREN | 6275 | — | Yes |
| 573-471 | SIKESTON | 9533 | — | — |
| 573-472 | SIKESTON | 9533 | — | — |
| 573-473 | MEXICO | 9533 | — | Yes |
| 573-474 | COLUMBIA | 9784 | — | — |
| 573-475 | SIKESTON | 9533 | — | Yes |
| 573-476 | COLUMBIA | 250A | 2014-11-21 | Yes |
| 573-477 | ST THOMAS | 1811 | — | Yes |
| 573-478 | DURHAM | 1914 | — | — |
| 573-479 | HAYTI | 6534 | 2008-03-04 | Yes |
| 573-480 | LKOZKOSBCH | 6534 | — | — |
| 573-481 | SIKESTON | 9533 | — | Yes |
| 573-482 | FARMINGTON | 6529 | — | Yes |
| 573-483 | BLOOMSDALE | 9533 | — | Yes |
| 573-484 | BEAUFORT | 9533 | — | Yes |
| 573-485 | EOLIA | 1885 | — | Yes |
| 573-486 | HERMANN | 9785 | — | Yes |
| 573-487 | LESTERVL | 093F | — | Yes |
| 573-488 | ASHLAND | 508J | 2013-08-05 | Yes |
| 573-489 | COLUMBIA | 6534 | — | — |
| 573-490 | LEWISTOWN | 093F | — | Yes |
| 573-491 | NEWBLOMFLD | 1811 | — | Yes |
| 573-492 | MARTINSBG | 1885 | — | Yes |
| 573-493 | STELIZABTH | 1885 | — | Yes |
| 573-494 | EWING | 1151 | — | Yes |
| 573-495 | CLUBB | 1885 | — | Yes |
| 573-496 | BRAZITO | 1811 | — | Yes |
| 573-497 | LEWISTOWN | 1151 | — | Yes |
| 573-498 | EUGENE | 1811 | — | Yes |
| 573-499 | COLUMBIA | 9784 | — | — |
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.