FRONTIER TELEPHONE OF ROCHESTER, INC.
186 prefixes in 585 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 585-429 | ROCHESTER | 0121 | — | Yes |
| 585-436 | ROCHESTER | 0121 | — | — |
| 585-442 | ROCHESTER | 0121 | — | — |
| 585-452 | ROCHESTER | 0121 | — | — |
| 585-453 | ROCHESTER | 0121 | — | — |
| 585-454 | ROCHESTER | 0121 | — | Yes |
| 585-458 | ROCHESTER | 0121 | — | — |
| 585-461 | ROCHESTER | 0121 | — | — |
| 585-462 | ROCHESTER | 0121 | — | — |
| 585-463 | ROCHESTER | 0121 | — | — |
| 585-464 | ROCHESTER | 0121 | — | — |
| 585-467 | ROCHESTER | 0121 | — | — |
| 585-468 | NUNDA | 0121 | — | Yes |
| 585-473 | ROCHESTER | 0121 | — | — |
| 585-475 | ROCHESTER | 0121 | — | — |
| 585-477 | ROCHESTER | 0121 | — | — |
| 585-482 | ROCHESTER | 0121 | — | — |
| 585-487 | HENRIETTA | 0121 | — | Yes |
| 585-493 | CASTILE | 0121 | — | Yes |
| 585-494 | BERGEN | 0121 | — | Yes |
| 585-495 | WYOMING | 0121 | — | Yes |
| 585-500 | ROCHESTER | 0121 | 2009-07-01 | Yes |
| 585-506 | ROCHESTER | 0121 | — | Yes |
| 585-521 | ROCHESTER | 0121 | — | — |
| 585-525 | ROCHESTER | 0121 | — | — |
| 585-527 | ROCHESTER | 0121 | — | — |
| 585-528 | ROCHESTER | 0121 | — | — |
| 585-529 | ROCHESTER | 0121 | — | — |
| 585-530 | ROCHESTER | 0121 | — | Yes |
| 585-533 | RUSH | 0121 | — | Yes |
| 585-534 | ATLANTA | 0121 | — | Yes |
| 585-538 | CALEDONIA | 0121 | — | Yes |
| 585-544 | ROCHESTER | 0121 | — | — |
| 585-546 | ROCHESTER | 0121 | — | — |
| 585-581 | ROCHESTER | 0121 | — | — |
| 585-582 | HONEOYEFLS | 0121 | — | Yes |
| 585-584 | PAVILION | 0121 | — | Yes |
| 585-586 | EROCHESTER | 0121 | — | — |
| 585-588 | ROCHESTER | 0121 | — | — |
| 585-602 | ROCHESTER | 0121 | 2018-04-10 | Yes |
| 585-621 | ROCHESTER | 0121 | — | — |
| 585-624 | HONEOYEFLS | 0121 | — | — |
| 585-626 | WEBSTER | 0121 | 2011-02-25 | Yes |
| 585-637 | BROCKPORT | 0121 | — | — |
| 585-647 | ROCHESTER | 0121 | — | — |
| 585-654 | ROCHESTER | 0121 | — | — |
| 585-658 | MT MORRIS | 0121 | — | Yes |
| 585-663 | ROCHESTER | 0121 | — | — |
| 585-666 | ROCHESTER | 0121 | 2009-07-07 | Yes |
| 585-669 | SPRINGWTR | 0121 | — | Yes |
| 585-670 | W WEBSTER | 0121 | — | Yes |
| 585-671 | W WEBSTER | 0121 | — | — |
| 585-678 | FAIRPORT | 0121 | 2006-10-05 | Yes |
| 585-719 | ROCHESTER | 0121 | — | Yes |
| 585-720 | ROCHESTER | 0121 | — | — |
| 585-722 | ROCHESTER | 0121 | — | — |
| 585-723 | ROCHESTER | 0121 | — | — |
| 585-726 | ROCHESTER | 0121 | — | Yes |
| 585-728 | WAYLAND | 0121 | — | Yes |
| 585-742 | VICTOR | 0121 | — | — |
| 585-753 | ROCHESTER | 0121 | 2005-05-17 | Yes |
| 585-768 | LE ROY | 0121 | — | — |
| 585-770 | ROCHESTER | 0121 | — | Yes |
| 585-771 | ROCHESTER | 0121 | — | Yes |
| 585-777 | ROCHESTER | 0121 | — | — |
| 585-783 | ROCHESTER | 0121 | — | — |
| 585-786 | WARSAW | 0121 | — | Yes |
| 585-787 | W WEBSTER | 0121 | — | Yes |
| 585-865 | ROCHESTER | 0121 | — | — |
| 585-872 | WEBSTER | 0121 | — | — |
| 585-889 | SCOTTSVL | 0121 | — | — |
| 585-899 | EROCHESTER | 0121 | — | Yes |
| 585-921 | ROCHESTER | 0121 | — | — |
| 585-922 | ROCHESTER | 0121 | — | — |
| 585-924 | VICTOR | 0121 | — | — |
| 585-935 | ROCHESTER | 0121 | — | Yes |
| 585-936 | ROCHESTER | 0121 | — | — |
| 585-939 | ROCHESTER | 0121 | — | Yes |
| 585-955 | ROCHESTER | 0121 | — | Yes |
| 585-956 | XXXXXXXXXX | 0121 | — | — |
| 585-964 | HAMLIN | 0121 | — | Yes |
| 585-966 | ROCHESTER | 0121 | — | Yes |
| 585-971 | XXXXXXXXXX | 0121 | — | — |
| 585-974 | ROCHESTER | 0121 | — | — |
| 585-975 | ROCHESTER | 0121 | — | Yes |
| 585-987 | ROCHESTER | 0121 | — | — |
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.