All assignees
800 prefixes in 304 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 304-500 | BERKELYSPG | 7229 | 2009-08-17 | Yes |
| 304-501 | WAYNE | 612K | — | Yes |
| 304-502 | FAIRMONT | 2704 | — | Yes |
| 304-503 | FAIRVIEW | 2704 | — | Yes |
| 304-504 | FARMINGTON | 2704 | — | Yes |
| 304-505 | FOLLANSBEE | 2704 | — | Yes |
| 304-506 | GRAFTON | 2704 | — | Yes |
| 304-507 | KINGWOOD | 2704 | — | Yes |
| 304-508 | MANNINGTON | 2704 | — | Yes |
| 304-509 | NEWBURG | 2704 | — | Yes |
| 304-510 | NEWMRTNSVL | 2704 | — | Yes |
| 304-511 | XXXXXXXXXX | MULT | — | — |
| 304-512 | RAVENSWOOD | 6529 | 2001-06-12 | Yes |
| 304-513 | CHRLSTNZN4 | 9944 | 2005-02-09 | Yes |
| 304-514 | RIPLEY | 5562 | 2001-06-12 | Yes |
| 304-515 | ROMNEY | 4095 | 2004-12-08 | — |
| 304-516 | BUCKHANNON | 6701 | 2001-07-16 | Yes |
| 304-517 | WESTON | 6701 | 2001-07-16 | Yes |
| 304-518 | GRAFTON | 5562 | 2001-07-16 | Yes |
| 304-519 | SPENCER | 9944 | 2004-05-18 | Yes |
| 304-520 | LEWISBURG | 612K | — | Yes |
| 304-521 | HNTNGTNZN1 | 9214 | — | Yes |
| 304-522 | HNTNGTNZN1 | 9214 | — | — |
| 304-523 | HNTNGTNZN1 | 9214 | — | — |
| 304-524 | GRIFITHSVL | 9214 | — | Yes |
| 304-525 | HNTNGTNZN1 | 9214 | — | — |
| 304-526 | HNTNGTNZN1 | 9214 | — | — |
| 304-527 | FOLLANSBEE | 9214 | — | Yes |
| 304-528 | HNTNGTNZN1 | 9214 | — | — |
| 304-529 | HNTNGTNZN1 | 9214 | — | — |
| 304-530 | MOOREFIELD | 8012 | 2002-07-15 | — |
| 304-531 | RIPLEY | 4036 | — | Yes |
| 304-532 | RIPLEY | 4036 | — | — |
| 304-533 | CHRLSTNZN1 | 6394 | — | — |
| 304-534 | FAIRMONT | 9214 | — | Yes |
| 304-535 | HARPESFRRY | 0270 | — | Yes |
| 304-536 | WHSLPHRSPG | 9214 | — | Yes |
| 304-537 | HNTNGTNZN1 | 6597 | — | — |
| 304-538 | MOOREFIELD | 0270 | — | Yes |
| 304-539 | CHRLSTNZN1 | 6394 | — | — |
| 304-540 | HNTNGTNZN1 | 6597 | — | — |
| 304-541 | CHRLSTNZN1 | 4036 | — | — |
| 304-542 | CHRLSTNZN1 | 6394 | — | — |
| 304-543 | CHRLSTNZN1 | 6394 | — | — |
| 304-544 | HNTNGTNZN1 | 6394 | — | — |
| 304-545 | CHRLSTNZN1 | 4036 | — | — |
| 304-546 | CHRLSTNZN1 | 4036 | — | — |
| 304-547 | WHELNGZON3 | 9214 | — | — |
| 304-548 | CLENDENIN | 9214 | — | Yes |
| 304-549 | CHRLSTNZN1 | 4036 | — | — |
| 304-550 | CHRLSTNZN1 | 4036 | 2001-09-20 | Yes |
| 304-551 | WHELNGZON1 | 9944 | — | Yes |
| 304-552 | CHRLSTNZN1 | 4036 | — | — |
| 304-553 | CHRLSTNZN1 | 9944 | — | Yes |
| 304-554 | MORGANTOWN | 545B | — | Yes |
| 304-555 | DIR ASST | MULT | — | — |
| 304-556 | CHRLSTNZN1 | 9214 | — | — |
| 304-557 | PRINCETON | 732J | — | Yes |
| 304-558 | CHRLSTNZN1 | 9214 | — | — |
| 304-559 | WHELNGZON1 | 9214 | — | Yes |
| 304-560 | LOGAN | 4036 | 2022-06-21 | Yes |
| 304-561 | CHRLSTNZN1 | 9214 | — | Yes |
| 304-562 | HURRICANE | 9214 | — | — |
| 304-563 | HNTNGTNZN1 | 6394 | — | Yes |
| 304-564 | NEWCUMBRLD | 9214 | — | Yes |
| 304-565 | NEWTON | 0270 | — | — |
| 304-566 | CLARKSBURG | 4036 | — | Yes |
| 304-567 | RIVERTON | 0257 | — | — |
| 304-568 | TUNNELTON | 9214 | — | Yes |
| 304-569 | MADISON | 7894 | — | — |
| 304-570 | BUFFALO | 7894 | — | — |
| 304-571 | LOGAN | 7894 | — | — |
| 304-572 | SNOWSHOE | 0270 | — | — |
| 304-573 | BECKLEY | 6284 | — | Yes |
| 304-574 | FAYETTEVL | 9214 | — | Yes |
| 304-575 | BECKLEY | 6284 | — | Yes |
| 304-576 | APPLEGROVE | 9214 | — | Yes |
| 304-577 | WALTON | 9214 | — | Yes |
| 304-578 | BECKLEY | 6284 | — | Yes |
| 304-579 | MARTINSBG | 4036 | — | Yes |
| 304-580 | PRKRSBGZN1 | 9214 | — | Yes |
| 304-581 | MORGANTOWN | 9214 | — | Yes |
| 304-582 | MARTINSBG | 6284 | 2001-04-16 | Yes |
| 304-583 | MAN | 9214 | — | Yes |
| 304-584 | LUMBERPORT | 9214 | — | Yes |
| 304-585 | KIMBALL | 0270 | — | Yes |
| 304-586 | WINFIELD | 9214 | — | Yes |
| 304-587 | CLAY | 0270 | — | Yes |
| 304-588 | PRKRSBGZN1 | 6394 | 2003-08-08 | — |
| 304-589 | BLUEWELL | 0270 | — | Yes |
| 304-590 | CHRLSTNZN1 | 6394 | 2003-12-16 | Yes |
| 304-591 | ELKINS | 9214 | 2001-12-20 | Yes |
| 304-592 | SHINNSTON | 9214 | — | Yes |
| 304-593 | PTPLEASANT | 4036 | 2001-07-16 | Yes |
| 304-594 | CHEAT LAKE | 9214 | — | Yes |
| 304-595 | EAST BANK | 9214 | — | Yes |
| 304-596 | MARTINSBG | 4036 | 2002-03-15 | Yes |
| 304-597 | KEYSER | 449F | 2002-03-15 | Yes |
| 304-598 | MORGANTOWN | 9214 | — | — |
| 304-599 | MORGANTOWN | 9214 | — | — |
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.