All assignees
699 prefixes in 585 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 585-500 | ROCHESTER | 0121 | 2009-07-01 | Yes |
| 585-501 | HONEOYEFLS | 155E | 2018-10-30 | Yes |
| 585-502 | LE ROY | 829J | — | Yes |
| 585-503 | ROCHESTER | 6622 | 2002-04-04 | — |
| 585-504 | ROCHESTER | 4036 | 2018-12-24 | Yes |
| 585-505 | ROCHESTER | 087H | 2018-11-20 | Yes |
| 585-506 | ROCHESTER | 0121 | — | Yes |
| 585-507 | ROCHESTER | 4006 | 2002-03-19 | Yes |
| 585-508 | HOLCOMB | 997E | 2020-03-17 | Yes |
| 585-509 | ROCHESTER | 6622 | 2001-07-19 | Yes |
| 585-510 | ROCHESTER | 384C | 2017-08-07 | Yes |
| 585-511 | XXXXXXXXXX | MULT | — | — |
| 585-512 | ROCHESTER | 7140 | 2001-04-20 | Yes |
| 585-513 | BERGEN | 073H | 2017-03-20 | Yes |
| 585-514 | ROCHESTER | 425J | 2020-01-24 | Yes |
| 585-515 | HILTON | 997E | 2020-03-18 | Yes |
| 585-516 | BATAVIA | 490J | 2023-02-08 | Yes |
| 585-517 | DALTON | 384C | 2020-05-28 | Yes |
| 585-518 | CORFU | 384C | 2023-05-04 | Yes |
| 585-519 | GENESEO | 7140 | 2001-04-11 | Yes |
| 585-520 | ROCHESTER | 4036 | — | — |
| 585-521 | ROCHESTER | 0121 | — | — |
| 585-522 | BELMONT | 384C | 2020-05-28 | Yes |
| 585-523 | WATERPORT | 384C | 2020-05-28 | Yes |
| 585-524 | BATAVIA | 6622 | 2015-01-23 | Yes |
| 585-525 | ROCHESTER | 0121 | — | — |
| 585-526 | STANLEY | 0122 | — | Yes |
| 585-527 | ROCHESTER | 0121 | — | — |
| 585-528 | ROCHESTER | 0121 | — | — |
| 585-529 | ROCHESTER | 0121 | — | — |
| 585-530 | ROCHESTER | 0121 | — | Yes |
| 585-531 | NAPLES | 4006 | 2006-04-03 | Yes |
| 585-532 | ROCHESTER | 5562 | 2015-03-06 | Yes |
| 585-533 | RUSH | 0121 | — | Yes |
| 585-534 | ATLANTA | 0121 | — | Yes |
| 585-535 | VARYSBURG | 9104 | — | Yes |
| 585-536 | BATAVIA | 6622 | 2015-09-28 | Yes |
| 585-537 | ROCHESTER | 6622 | — | Yes |
| 585-538 | CALEDONIA | 0121 | — | Yes |
| 585-539 | CUBA | 155E | 2015-12-09 | Yes |
| 585-540 | ROCHESTER | 321J | 2020-07-24 | Yes |
| 585-541 | CASTILE | 384C | 2017-03-17 | Yes |
| 585-542 | AKRON | 9104 | — | Yes |
| 585-543 | OLEAN | 7140 | — | Yes |
| 585-544 | ROCHESTER | 0121 | — | — |
| 585-545 | WEBSTER | 829J | — | Yes |
| 585-546 | ROCHESTER | 0121 | — | — |
| 585-547 | DARIEN | 0096 | — | Yes |
| 585-548 | BYRON | 9104 | — | Yes |
| 585-549 | GENESEO | 6959 | 2019-06-03 | Yes |
| 585-550 | ROCHESTER | 114J | 2022-11-15 | Yes |
| 585-551 | ROCHESTER | 478J | 2020-05-29 | Yes |
| 585-552 | COHOCTON | 155E | 2018-10-30 | Yes |
| 585-553 | BATAVIA | 6622 | 2020-09-14 | Yes |
| 585-554 | RUSHVILLE | 0122 | — | Yes |
| 585-555 | DIR ASST | MULT | — | — |
| 585-556 | DARIEN | 384C | 2021-07-07 | Yes |
| 585-557 | ROCHESTER | 622J | 2021-09-08 | Yes |
| 585-558 | WARSAW | 793K | 2005-03-23 | Yes |
| 585-559 | ROCHESTER | 515J | 2021-03-30 | Yes |
| 585-560 | MEDINA | 384C | 2018-11-26 | Yes |
| 585-561 | NAPLES | 073H | 2021-04-19 | Yes |
| 585-562 | ATTICA | 997E | 2021-05-14 | Yes |
| 585-563 | ROCHESTER | 793K | — | Yes |
| 585-564 | SPENCERPT | 384C | 2021-05-25 | Yes |
| 585-565 | ROCHESTER | 384C | 2019-12-19 | Yes |
| 585-566 | BLISS | 384C | 2020-05-12 | Yes |
| 585-567 | FILLMORE | 0096 | — | Yes |
| 585-568 | ROCHESTER | 829J | — | Yes |
| 585-569 | WARSAW | 495J | 2021-07-09 | Yes |
| 585-570 | FRIENDSHIP | 624H | 2021-04-13 | Yes |
| 585-571 | SCOTTSVL | 829J | — | Yes |
| 585-572 | LIVONIA | 793K | 2006-10-17 | Yes |
| 585-573 | RUSH | 384C | 2021-02-02 | Yes |
| 585-574 | ROCHESTER | 629E | 2021-08-11 | Yes |
| 585-575 | HONEOYE | 384C | 2018-11-16 | Yes |
| 585-576 | ROCHESTER | 6622 | — | Yes |
| 585-577 | CANANDAGUA | 155E | 2016-05-20 | Yes |
| 585-578 | CASTILE | 939H | 2021-09-24 | Yes |
| 585-579 | BERGEN | 818H | 2021-10-13 | Yes |
| 585-580 | ANGELICA | 384C | 2020-05-12 | Yes |
| 585-581 | ROCHESTER | 0121 | — | — |
| 585-582 | HONEOYEFLS | 0121 | — | Yes |
| 585-583 | SPRINGWTR | 384C | 2021-02-02 | Yes |
| 585-584 | PAVILION | 0121 | — | Yes |
| 585-585 | — | — | ||
| 585-586 | EROCHESTER | 0121 | — | — |
| 585-587 | — | — | ||
| 585-588 | ROCHESTER | 0121 | — | — |
| 585-589 | ALBION | 9104 | — | — |
| 585-590 | ALBION | 9104 | — | Yes |
| 585-591 | ATTICA | 9104 | — | Yes |
| 585-592 | BELMONT | 818H | 2021-10-13 | Yes |
| 585-593 | WELLSVILLE | 9104 | — | Yes |
| 585-594 | SPENCERPT | 0110 | — | — |
| 585-595 | HEMLOCK | 384C | 2018-11-16 | Yes |
| 585-596 | WELLSVILLE | 9104 | — | Yes |
| 585-597 | CORFU | 087H | 2015-07-16 | Yes |
| 585-598 | FAIRPORT | 829J | — | Yes |
| 585-599 | CORFU | 0096 | — | 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.