All assignees
799 prefixes in 513 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 513-500 | CINCINNATI | 6025 | 2011-01-03 | Yes |
| 513-501 | CINCINNATI | 6529 | 2011-09-20 | Yes |
| 513-502 | CINCINNATI | 6025 | — | — |
| 513-503 | CINCINNATI | 6025 | — | — |
| 513-504 | CINCINNATI | 6025 | — | — |
| 513-505 | CINCINNATI | 6025 | — | — |
| 513-506 | MONROE | 284F | 2018-02-22 | Yes |
| 513-507 | CINCINNATI | 6025 | 2011-11-30 | Yes |
| 513-508 | CINCINNATI | 6025 | — | — |
| 513-509 | CINCINNATI | 6025 | — | — |
| 513-510 | CINCINNATI | 6529 | 2011-12-21 | Yes |
| 513-511 | XXXXXXXXXX | MULT | — | — |
| 513-512 | CINCINNATI | 7532 | 2012-01-10 | Yes |
| 513-513 | CINCINNATI | 464C | 2023-02-08 | Yes |
| 513-514 | CINCINNATI | 765H | 2018-03-20 | Yes |
| 513-515 | CINCINNATI | 6025 | — | — |
| 513-516 | CINCINNATI | 6025 | 2012-01-31 | Yes |
| 513-517 | CINCINNATI | 9348 | 2013-04-30 | Yes |
| 513-518 | CINCINNATI | 6025 | — | — |
| 513-519 | CINCINNATI | 6025 | — | — |
| 513-520 | CINCINNATI | 6025 | — | — |
| 513-521 | CINCINNATI | 9348 | — | — |
| 513-522 | CINCINNATI | 9348 | — | — |
| 513-523 | OXFORD | 0615 | — | — |
| 513-524 | OXFORD | 0615 | — | — |
| 513-525 | HAMILTON | 5562 | 2017-03-10 | Yes |
| 513-526 | CINCINNATI | 6025 | — | — |
| 513-527 | CINCINNATI | 9348 | — | — |
| 513-528 | CLERMONT | 9348 | — | — |
| 513-529 | OXFORD | 309B | — | — |
| 513-530 | CINCINNATI | 9348 | — | — |
| 513-531 | CINCINNATI | 9348 | — | — |
| 513-532 | CINCINNATI | 6025 | — | — |
| 513-533 | CINCINNATI | 9348 | — | — |
| 513-534 | CINCINNATI | 9348 | 2001-05-24 | — |
| 513-535 | CINCINNATI | 6025 | — | — |
| 513-536 | WILLIAMSBG | 9348 | — | Yes |
| 513-537 | CINCINNATI | 742J | — | Yes |
| 513-538 | CINCINNATI | 197D | 2018-05-03 | Yes |
| 513-539 | MONROE | 9321 | — | — |
| 513-540 | MIDDLETOWN | 464C | 2020-02-25 | Yes |
| 513-541 | CINCINNATI | 9348 | — | — |
| 513-542 | CINCINNATI | 9348 | — | — |
| 513-543 | CINCINNATI | 6025 | — | — |
| 513-544 | CINCINNATI | 6529 | — | Yes |
| 513-545 | CINCINNATI | 6529 | — | Yes |
| 513-546 | CINCINNATI | 6529 | — | Yes |
| 513-547 | TRENTON | 001F | 2018-08-02 | Yes |
| 513-548 | MASON | 001F | 2018-08-02 | Yes |
| 513-549 | CINCINNATI | 001F | 2008-05-13 | Yes |
| 513-550 | CINCINNATI | 6534 | — | Yes |
| 513-551 | CINCINNATI | 9348 | — | Yes |
| 513-552 | CINCINNATI | 9348 | — | — |
| 513-553 | CLERMONT | 9348 | — | — |
| 513-554 | CINCINNATI | 9348 | — | — |
| 513-555 | DIR ASST | MULT | — | — |
| 513-556 | CINCINNATI | 9348 | — | — |
| 513-557 | CINCINNATI | 9348 | — | Yes |
| 513-558 | CINCINNATI | 9348 | — | — |
| 513-559 | CINCINNATI | 9348 | — | — |
| 513-560 | CINCINNATI | 6534 | — | — |
| 513-561 | CINCINNATI | 9348 | — | — |
| 513-562 | CINCINNATI | 9348 | — | Yes |
| 513-563 | CINCINNATI | 9348 | — | — |
| 513-564 | CINCINNATI | 9348 | — | — |
| 513-565 | CINCINNATI | 9348 | — | — |
| 513-566 | CINCINNATI | 9348 | — | — |
| 513-567 | MIDDLETOWN | 6025 | 2019-01-18 | Yes |
| 513-568 | CINCINNATI | 6529 | 2011-02-25 | Yes |
| 513-569 | CINCINNATI | 9348 | — | Yes |
| 513-570 | CINCINNATI | 5562 | 2014-07-16 | Yes |
| 513-571 | MIDDLETOWN | 6529 | — | Yes |
| 513-572 | CINCINNATI | 600F | 2019-07-03 | Yes |
| 513-573 | MASON | 0661 | — | — |
| 513-574 | CINCINNATI | 9348 | — | — |
| 513-575 | LTL MIAMI | 9348 | — | Yes |
| 513-576 | LTL MIAMI | 9348 | — | — |
| 513-577 | CINCINNATI | 9348 | — | — |
| 513-578 | CINCINNATI | 6529 | 2007-05-23 | Yes |
| 513-579 | CINCINNATI | 9348 | — | — |
| 513-580 | CINCINNATI | 6529 | 2011-12-21 | Yes |
| 513-581 | CINCINNATI | 6025 | 2012-03-26 | Yes |
| 513-582 | CINCINNATI | 6025 | — | — |
| 513-583 | LTL MIAMI | 9348 | — | — |
| 513-584 | CINCINNATI | 9348 | — | — |
| 513-585 | CINCINNATI | 9348 | — | — |
| 513-586 | CINCINNATI | 464C | 2017-08-18 | Yes |
| 513-587 | CINCINNATI | 4863 | — | Yes |
| 513-588 | CINCINNATI | 9348 | — | — |
| 513-589 | CINCINNATI | 9348 | — | — |
| 513-590 | CINCINNATI | 6630 | — | — |
| 513-591 | CINCINNATI | 9348 | — | Yes |
| 513-592 | CINCINNATI | 7532 | 2014-02-26 | Yes |
| 513-593 | OXFORD | 6534 | — | Yes |
| 513-594 | MIDDLETOWN | 6025 | — | — |
| 513-595 | CINCINNATI | 9348 | — | — |
| 513-596 | HAMILTON | 6025 | 2019-11-15 | Yes |
| 513-597 | NEWTONSVL | 6534 | 2016-08-24 | Yes |
| 513-598 | CINCINNATI | 9348 | — | Yes |
| 513-599 | CINCINNATI | 114J | — | Yes |
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.