All assignees
800 prefixes in 336 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 336-500 | GREENSBORO | 829J | 2009-04-29 | Yes |
| 336-501 | GREENSBORO | 5307 | 2006-07-28 | Yes |
| 336-502 | HAYS | 7835 | 2016-08-17 | Yes |
| 336-503 | ROXBORO | 0471 | — | Yes |
| 336-504 | ROXBORO | 6324 | — | — |
| 336-505 | KIMESVILLE | 3235 | 2004-10-18 | Yes |
| 336-506 | BURLINGTON | 829J | — | Yes |
| 336-507 | NOWILKESBO | 638E | 2026-05-29 | Yes |
| 336-508 | GREENSBORO | 6214 | — | — |
| 336-509 | GREENSBORO | 6214 | — | — |
| 336-510 | GREENSBORO | 3235 | — | — |
| 336-511 | XXXXXXXXXX | MULT | — | — |
| 336-512 | BURLINGTON | 8645 | 2001-07-26 | Yes |
| 336-513 | BURLINGTON | 9417 | — | Yes |
| 336-514 | YANCEYVL | 6324 | — | Yes |
| 336-515 | KERNERSVL | 998E | 2014-08-26 | Yes |
| 336-516 | BURLINGTON | 8645 | — | Yes |
| 336-517 | GREENSBORO | 3235 | — | Yes |
| 336-518 | YADKINVL | 8645 | — | Yes |
| 336-519 | WINSTN SAL | 9417 | — | — |
| 336-520 | REIDSVILLE | 8389 | 2009-01-29 | Yes |
| 336-521 | ASHEBORO | 6214 | — | Yes |
| 336-522 | GREENSBORO | 9417 | 2004-08-27 | Yes |
| 336-523 | ASHEBORO | 757D | 2014-06-13 | Yes |
| 336-524 | BURLINGTON | 9417 | — | Yes |
| 336-525 | SAXAPAHAW | 3235 | 2005-03-08 | Yes |
| 336-526 | ELKIN | 0471 | — | — |
| 336-527 | ELKIN | 0471 | — | — |
| 336-528 | WINSTN SAL | 6324 | 2009-09-09 | Yes |
| 336-529 | WINSTN SAL | 6324 | 2006-10-23 | Yes |
| 336-530 | ELKIN | 793K | 2013-02-06 | Yes |
| 336-531 | WINSTN SAL | 4809 | — | — |
| 336-532 | BURLINGTON | 4809 | — | — |
| 336-533 | GREENSBORO | 4809 | — | — |
| 336-534 | BURLINGTON | 511C | — | Yes |
| 336-535 | SHOALS | 793K | 2008-10-31 | Yes |
| 336-536 | WALNUTCOVE | 998E | 2012-01-23 | Yes |
| 336-537 | SOUTHMONT | 793K | 2009-03-31 | Yes |
| 336-538 | BURLINGTON | 9417 | — | Yes |
| 336-539 | BURLINGTON | 5562 | — | Yes |
| 336-540 | GREENSBORO | 9417 | — | Yes |
| 336-541 | GREENSBORO | 8389 | — | Yes |
| 336-542 | GREENSBORO | 6324 | — | Yes |
| 336-543 | GREENSBORO | 8389 | — | Yes |
| 336-544 | GREENSBORO | 829J | — | — |
| 336-545 | GREENSBORO | 9417 | — | — |
| 336-546 | WINSTN SAL | 516C | 2010-02-17 | Yes |
| 336-547 | GREENSBORO | 9417 | — | — |
| 336-548 | MADISON | 0471 | — | — |
| 336-549 | GREENSBORO | 6214 | — | — |
| 336-550 | GREENSBORO | 361F | 2009-04-02 | Yes |
| 336-551 | BOONVILLE | 7835 | 2005-04-13 | Yes |
| 336-552 | REIDSVILLE | 6324 | 2002-06-18 | — |
| 336-553 | GREENSBORO | 829J | — | Yes |
| 336-554 | GREENSBORO | 8389 | — | Yes |
| 336-555 | DIR ASST | MULT | — | — |
| 336-556 | GREENSBORO | 6630 | — | — |
| 336-557 | BURLINGTON | 6630 | — | — |
| 336-558 | GREENSBORO | 8645 | — | Yes |
| 336-559 | ELKIN | 0471 | 2010-03-30 | Yes |
| 336-560 | SUMMERFLD | 829J | 2001-10-02 | Yes |
| 336-561 | THOMASVL | 5562 | — | Yes |
| 336-562 | PROSPECTHL | 0471 | — | Yes |
| 336-563 | CLINGMAN | 792K | 2018-01-31 | Yes |
| 336-564 | KERNERSVL | 829J | — | Yes |
| 336-565 | KIMESVILLE | 9417 | — | Yes |
| 336-566 | NOWILKESBO | 8645 | 2001-11-08 | Yes |
| 336-567 | BURLINGTON | 9417 | — | Yes |
| 336-568 | NOWILKESBO | 5562 | 2017-02-13 | Yes |
| 336-569 | DOBSON | 998E | 2020-05-12 | Yes |
| 336-570 | BURLINGTON | 9417 | — | Yes |
| 336-571 | ELKIN | 769H | 2016-03-07 | Yes |
| 336-572 | SPARTA | 5932 | — | — |
| 336-573 | STONEVILLE | 0471 | — | Yes |
| 336-574 | GREENSBORO | 9417 | — | Yes |
| 336-575 | WINSTN SAL | 8645 | — | Yes |
| 336-576 | COURTNEY | 793K | 2013-02-06 | Yes |
| 336-577 | WINSTN SAL | 8645 | — | Yes |
| 336-578 | BURLINGTON | 9417 | — | — |
| 336-579 | GREENSBORO | 511C | 2016-03-02 | Yes |
| 336-580 | GREENSBORO | 6324 | — | — |
| 336-581 | BENNETT | 0496 | — | — |
| 336-582 | WINSTN SAL | 8645 | 2012-08-13 | Yes |
| 336-583 | ROXBORO | 6324 | 2002-05-16 | Yes |
| 336-584 | BURLINGTON | 9417 | — | — |
| 336-585 | BURLINGTON | 9417 | — | Yes |
| 336-586 | BURLINGTON | 9417 | — | Yes |
| 336-587 | GREENSBORO | 8645 | — | Yes |
| 336-588 | ASHEBORO | 6214 | 2001-11-27 | Yes |
| 336-589 | EDEN | 8645 | — | Yes |
| 336-590 | LEXINGTON | 0483 | 2014-08-28 | Yes |
| 336-591 | WALNUTCOVE | 0471 | — | Yes |
| 336-592 | ROXBORO | 6282 | — | Yes |
| 336-593 | DANBURY | 0471 | — | Yes |
| 336-594 | STANLEYVL | 5562 | 2015-03-06 | Yes |
| 336-595 | WALKERTOWN | 0471 | — | — |
| 336-596 | LEXINGTON | 6324 | 2003-03-05 | Yes |
| 336-597 | ROXBORO | 0471 | — | — |
| 336-598 | ROXBORO | 0471 | — | Yes |
| 336-599 | ROXBORO | 0471 | — | — |
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.