All assignees
800 prefixes in 304 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 304-400 | CHRLSTNZN1 | 4036 | 2008-06-25 | Yes |
| 304-401 | SISTERSVL | 2704 | — | Yes |
| 304-402 | SUTTON | 2704 | — | Yes |
| 304-403 | TERRA ALTA | 2704 | — | Yes |
| 304-404 | W MILFORD | 2704 | — | Yes |
| 304-405 | WEST UNION | 2704 | — | Yes |
| 304-406 | WESTON | 2704 | — | Yes |
| 304-407 | BEECHBTTOM | 2704 | — | Yes |
| 304-408 | BETHANY | 2704 | — | Yes |
| 304-409 | BLUEWELL | 9944 | 2002-12-10 | Yes |
| 304-410 | CHRLSTNZN1 | 080F | 2008-09-04 | Yes |
| 304-411 | XXXXXXXXXX | MULT | — | — |
| 304-412 | HNTNGTNZN1 | 6529 | — | Yes |
| 304-413 | MORGANTOWN | 5201 | 2004-10-11 | Yes |
| 304-414 | CHRLSTNZN1 | 7849 | — | — |
| 304-415 | CHRLSTNZN1 | 6529 | — | Yes |
| 304-416 | HNTNGTNZN1 | 6529 | — | Yes |
| 304-417 | HNTNGTNZN1 | 6529 | — | Yes |
| 304-418 | MORGANTOWN | 2704 | — | Yes |
| 304-419 | CHRLSTNZN1 | 6529 | — | Yes |
| 304-420 | PRKRSBGZN1 | 9214 | — | — |
| 304-421 | CHRLSTNZN1 | 6529 | — | Yes |
| 304-422 | PRKRSBGZN1 | 9214 | — | — |
| 304-423 | CLARKSBURG | 545B | 2003-11-24 | — |
| 304-424 | PRKRSBGZN1 | 9214 | — | — |
| 304-425 | PRINCETON | 0270 | — | — |
| 304-426 | MATEWAN | 9214 | — | Yes |
| 304-427 | HILLSBORO | 7229 | 2016-01-04 | Yes |
| 304-428 | PRKRSBGZN1 | 9214 | — | — |
| 304-429 | HNTNGTNZN1 | 9214 | — | Yes |
| 304-430 | BUFFALO | 4095 | — | — |
| 304-431 | PRINCETON | 0270 | — | Yes |
| 304-432 | BLACKSVL | 0270 | — | — |
| 304-433 | MARTINSBG | 9214 | — | Yes |
| 304-434 | LOST RIVER | 0259 | — | — |
| 304-435 | CHEAT LAKE | 6534 | 2011-01-07 | Yes |
| 304-436 | WELCH | 0270 | — | Yes |
| 304-437 | CHRLSTNZN1 | 6529 | — | Yes |
| 304-438 | RAINELLE | 9214 | — | Yes |
| 304-439 | BUCKHANNON | 6701 | — | Yes |
| 304-440 | RAVENSWOOD | 6529 | — | Yes |
| 304-441 | KINGWOOD | 6701 | 2006-07-14 | Yes |
| 304-442 | MONTGOMERY | 9214 | — | Yes |
| 304-443 | WILLIAMSON | 6940 | 2008-06-19 | Yes |
| 304-444 | CHRLSTNZN1 | 6529 | 2001-09-20 | Yes |
| 304-445 | ALDERSON | 9214 | — | Yes |
| 304-446 | ELK GARDEN | 9214 | — | Yes |
| 304-447 | NEWMRTNSVL | 4095 | — | — |
| 304-448 | GARY | 0270 | — | — |
| 304-449 | FAIRVIEW | 9214 | — | Yes |
| 304-450 | CHRLSTNZN1 | 9748 | — | — |
| 304-451 | NEWMRTNSVL | 928H | — | Yes |
| 304-452 | WALKERSVL | 0270 | — | — |
| 304-453 | HNTNGTNZN4 | 9214 | — | Yes |
| 304-454 | ROWLESBURG | 9214 | — | Yes |
| 304-455 | NEWMRTNSVL | 9214 | — | Yes |
| 304-456 | ARBOVALE | 0270 | — | — |
| 304-457 | PHILIPPI | 9214 | — | Yes |
| 304-458 | LEON | 9214 | — | Yes |
| 304-459 | CHESTER | 9944 | 2001-12-20 | Yes |
| 304-460 | BUCKHANNON | 9944 | 2001-12-20 | Yes |
| 304-461 | BECKLEY | 7849 | 2001-05-17 | Yes |
| 304-462 | GLENVILLE | 9214 | — | Yes |
| 304-463 | THOMAS | 0270 | — | — |
| 304-464 | VALLEY ML | 9214 | — | Yes |
| 304-465 | OAK HILL | 9214 | — | Yes |
| 304-466 | HINTON | 9214 | — | Yes |
| 304-467 | MATOAKA | 0270 | — | Yes |
| 304-468 | WEIRTON | 3866 | 2001-02-12 | — |
| 304-469 | OAK HILL | 9214 | — | Yes |
| 304-470 | PHILIPPI | 9944 | 2004-10-20 | Yes |
| 304-471 | BUCKHANNON | 4095 | — | — |
| 304-472 | BUCKHANNON | 9214 | — | — |
| 304-473 | BUCKHANNON | 9214 | — | Yes |
| 304-474 | ROCKPORT | 0267 | — | — |
| 304-475 | DELBARTON | 9214 | — | Yes |
| 304-476 | CLARKSBURG | 4036 | 2001-04-16 | — |
| 304-477 | SMITHVILLE | 0267 | — | — |
| 304-478 | PARSONS | 0270 | — | — |
| 304-479 | WEIRTON | 6394 | — | — |
| 304-480 | PRKRSBGZN1 | 9214 | — | Yes |
| 304-481 | PRKRSBGZN1 | 6394 | — | — |
| 304-482 | PRKRSBGZN1 | 6534 | — | — |
| 304-483 | PRKRSBGZN1 | 6394 | — | — |
| 304-484 | MDW BRIDGE | 9214 | — | Yes |
| 304-485 | PRKRSBGZN1 | 9214 | — | — |
| 304-486 | PRICHARD | 9214 | — | Yes |
| 304-487 | PRINCETON | 0270 | — | — |
| 304-488 | PRKRSBGZN1 | 6534 | — | — |
| 304-489 | MINERLWLLS | 9214 | — | Yes |
| 304-490 | LOST RIVER | 6701 | 2010-02-03 | Yes |
| 304-491 | WEIRTON | 6394 | — | Yes |
| 304-492 | LEVELS | 0270 | — | — |
| 304-493 | HACKER VLY | 0270 | — | — |
| 304-494 | PRKRSBGZN1 | 6394 | — | — |
| 304-495 | SUMMERSVL | 7894 | — | — |
| 304-496 | AUGUSTA | 0270 | — | — |
| 304-497 | FRANKFORD | 0270 | — | — |
| 304-498 | SPENCER | 7894 | — | — |
| 304-499 | MONTGOMERY | 7894 | — | — |
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.