All assignees
800 prefixes in 304 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 304-300 | CLARKSBURG | 368E | 2008-08-06 | Yes |
| 304-301 | ATHENS | 612K | — | Yes |
| 304-302 | HNTNGTNZN2 | 4095 | — | — |
| 304-303 | RIDGELEY | 4036 | 2004-04-15 | Yes |
| 304-304 | CHRLSTNZN1 | 624H | 2023-05-22 | Yes |
| 304-305 | BELMONT | 4036 | 2004-04-15 | Yes |
| 304-306 | CHRLSTNZN7 | 612K | — | Yes |
| 304-307 | MADISON | 4095 | 2004-03-16 | Yes |
| 304-308 | BLUEFIELD | 6394 | 2004-08-20 | Yes |
| 304-309 | HINTON | 545B | 2004-08-20 | Yes |
| 304-310 | CHAPMANVL | 545B | 2004-08-20 | Yes |
| 304-311 | XXXXXXXXXX | MULT | — | — |
| 304-312 | WHELNGZON1 | 6534 | — | Yes |
| 304-313 | MIDDLEBORN | 2704 | — | Yes |
| 304-314 | PHILIPPI | 2704 | — | Yes |
| 304-315 | ROCK CAVE | 2704 | — | Yes |
| 304-316 | NEWCUMBRLD | 2704 | — | Yes |
| 304-317 | PADEN CITY | 2704 | — | Yes |
| 304-318 | ROWLESBURG | 2704 | — | Yes |
| 304-319 | MORGANTOWN | 6701 | — | Yes |
| 304-320 | BLUEFIELD | 4036 | — | — |
| 304-321 | FRANKLIN | 4095 | — | — |
| 304-322 | MORGANTOWN | 6701 | — | Yes |
| 304-323 | BLUEFIELD | 0270 | — | Yes |
| 304-324 | BLUEFIELD | 0270 | — | — |
| 304-325 | BLUEFIELD | 0270 | — | — |
| 304-326 | CLARKSBURG | 4095 | — | — |
| 304-327 | BLUEFIELD | 0270 | — | — |
| 304-328 | MT MORRIS | 0270 | — | — |
| 304-329 | KINGWOOD | 9214 | — | Yes |
| 304-330 | CHRLSTNZN1 | 9748 | 2011-03-20 | — |
| 304-331 | WHELNGZON1 | 3866 | — | — |
| 304-332 | WIDEN | 0270 | — | — |
| 304-333 | FAIRMONT | 4095 | — | — |
| 304-334 | SMITHFIELD | 0270 | — | — |
| 304-335 | MILL CREEK | 0270 | — | Yes |
| 304-336 | WHELNGZON2 | 9214 | — | Yes |
| 304-337 | PADEN CITY | 9214 | — | Yes |
| 304-338 | MILL CREEK | 0270 | — | Yes |
| 304-339 | MILL CREEK | 0270 | — | — |
| 304-340 | CHRLSTNZN1 | 9214 | — | — |
| 304-341 | CHRLSTNZN1 | 9214 | — | — |
| 304-342 | CHRLSTNZN1 | 9214 | — | — |
| 304-343 | CHRLSTNZN1 | 9214 | — | — |
| 304-344 | CHRLSTNZN1 | 9214 | — | — |
| 304-345 | CHRLSTNZN1 | 9214 | — | — |
| 304-346 | CHRLSTNZN1 | 9214 | — | — |
| 304-347 | CHRLSTNZN1 | 9214 | — | — |
| 304-348 | CHRLSTNZN1 | 9214 | — | — |
| 304-349 | LAWFORD | 0267 | — | — |
| 304-350 | MARTINSBG | 6855 | 2010-03-30 | Yes |
| 304-351 | CHRLSTNZN1 | 9214 | — | — |
| 304-352 | CHRLSTNZN1 | 7849 | — | — |
| 304-353 | CHRLSTNZN1 | 9214 | — | — |
| 304-354 | GRANTSVL | 0270 | — | — |
| 304-355 | PIEDMONT | 9214 | — | Yes |
| 304-356 | CHRLSTNZN1 | 6529 | 2008-02-06 | Yes |
| 304-357 | CHRLSTNZN1 | 9214 | — | — |
| 304-358 | FRANKLIN | 9214 | — | Yes |
| 304-359 | ROMNEY | 317C | 2008-05-15 | Yes |
| 304-360 | HNTNGTNZN1 | 6394 | — | — |
| 304-361 | HNTNGTNZN1 | 6597 | — | — |
| 304-362 | BECKLEY | 6529 | 2011-11-21 | Yes |
| 304-363 | FAIRMONT | 9214 | — | — |
| 304-364 | GASSAWAY | 9214 | — | Yes |
| 304-365 | FAIRMONT | 6701 | — | Yes |
| 304-366 | FAIRMONT | 9214 | — | — |
| 304-367 | FAIRMONT | 9214 | — | — |
| 304-368 | FAIRMONT | 9214 | — | Yes |
| 304-369 | MADISON | 9214 | — | — |
| 304-370 | SALEM | 2704 | — | Yes |
| 304-371 | SHINNSTON | 2704 | — | Yes |
| 304-372 | RIPLEY | 9214 | — | — |
| 304-373 | RIPLEY | 9214 | — | Yes |
| 304-374 | WEIRTON | 6534 | 2001-02-12 | Yes |
| 304-375 | WILLIAMSTN | 9214 | — | Yes |
| 304-376 | MORGANTOWN | 6534 | 2001-07-16 | Yes |
| 304-377 | RIPLEY | 6394 | — | — |
| 304-378 | MARTINSBG | 318J | — | — |
| 304-379 | BRUCETONML | 0270 | — | — |
| 304-380 | CHRLSTNZN1 | 7229 | — | Yes |
| 304-381 | MORGANTOWN | 7229 | — | Yes |
| 304-382 | CHRLSTNZN1 | 9214 | — | Yes |
| 304-383 | ANAWALT | 0270 | — | — |
| 304-384 | ATHENS | 0270 | — | Yes |
| 304-385 | DUNLOW | 0270 | — | — |
| 304-386 | READER | 0270 | — | — |
| 304-387 | CHESTER | 9214 | — | — |
| 304-388 | CHRLSTNZN1 | 9214 | — | — |
| 304-389 | CHRLSTNZN1 | 4036 | — | — |
| 304-390 | MILTON | 4095 | 2003-09-10 | Yes |
| 304-391 | CHRLSTNZN1 | 545B | 2003-11-24 | — |
| 304-392 | RUPERT | 0270 | — | — |
| 304-393 | KERMIT | 9214 | — | Yes |
| 304-394 | BEECHBTTOM | 9214 | — | Yes |
| 304-395 | CHRLSTNZN1 | 6529 | 2001-04-16 | Yes |
| 304-396 | OAKVALE | 6394 | 2006-05-30 | Yes |
| 304-397 | HURRICANE | 9944 | — | Yes |
| 304-398 | NEWMRTNSVL | 612K | — | Yes |
| 304-399 | HNTNGTNZN1 | 7849 | — | — |
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.