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 |
|---|---|---|---|---|
| 585-214 | ROCHESTER | 0121 | — | Yes |
| 585-216 | WEBSTER | 0121 | — | Yes |
| 585-217 | WEBSTER | 0121 | — | Yes |
| 585-218 | EROCHESTER | 0121 | — | — |
| 585-220 | ROCHESTER | 0121 | — | — |
| 585-221 | XXXXXXXXXX | 0121 | — | — |
| 585-222 | ROCHESTER | 0121 | — | — |
| 585-223 | FAIRPORT | 0121 | — | — |
| 585-224 | ROCHESTER | 0121 | — | Yes |
| 585-225 | ROCHESTER | 0121 | — | — |
| 585-226 | AVON | 0121 | — | Yes |
| 585-227 | ROCHESTER | 0121 | — | — |
| 585-231 | ROCHESTER | 0121 | — | Yes |
| 585-232 | ROCHESTER | 0121 | — | — |
| 585-234 | ROCHESTER | 0121 | — | — |
| 585-235 | ROCHESTER | 0121 | — | — |
| 585-237 | PERRY | 0121 | — | Yes |
| 585-238 | ROCHESTER | 0121 | — | — |
| 585-239 | ROCHESTER | 0121 | — | — |
| 585-240 | ROCHESTER | 0121 | — | — |
| 585-241 | ROCHESTER | 0121 | — | — |
| 585-242 | ROCHESTER | 0121 | — | — |
| 585-243 | GENESEO | 0121 | — | Yes |
| 585-244 | ROCHESTER | 0121 | — | — |
| 585-245 | GENESEO | 0121 | — | Yes |
| 585-246 | ROCHESTER | 0121 | — | — |
| 585-247 | ROCHESTER | 0121 | — | — |
| 585-248 | EROCHESTER | 0121 | — | — |
| 585-249 | EROCHESTER | 0121 | — | — |
| 585-251 | ROCHESTER | 0121 | — | — |
| 585-253 | ROCHESTER | 0121 | — | — |
| 585-254 | ROCHESTER | 0121 | — | — |
| 585-255 | ROCHESTER | 0121 | — | Yes |
| 585-256 | ROCHESTER | 0121 | — | — |
| 585-258 | ROCHESTER | 0121 | — | — |
| 585-262 | ROCHESTER | 0121 | — | — |
| 585-263 | ROCHESTER | 0121 | — | — |
| 585-264 | EROCHESTER | 0121 | — | — |
| 585-265 | WEBSTER | 0121 | — | — |
| 585-266 | ROCHESTER | 0121 | — | — |
| 585-271 | ROCHESTER | 0121 | — | — |
| 585-272 | ROCHESTER | 0121 | — | — |
| 585-273 | ROCHESTER | 0121 | — | Yes |
| 585-274 | ROCHESTER | 0121 | — | Yes |
| 585-276 | ROCHESTER | 0121 | — | Yes |
| 585-277 | ROCHESTER | 0121 | — | — |
| 585-278 | ROCHESTER | 0121 | 2003-09-29 | Yes |
| 585-279 | ROCHESTER | 0121 | — | — |
| 585-288 | ROCHESTER | 0121 | — | — |
| 585-291 | ROCHESTER | 0121 | — | — |
| 585-292 | ROCHESTER | 0121 | — | — |
| 585-293 | CHURCHVL | 0121 | — | Yes |
| 585-306 | ROCHESTER | 0121 | — | — |
| 585-320 | ROCHESTER | 0121 | — | — |
| 585-321 | HENRIETTA | 0121 | — | Yes |
| 585-323 | ROCHESTER | 0121 | — | Yes |
| 585-324 | ROCHESTER | 0121 | — | Yes |
| 585-325 | ROCHESTER | 0121 | — | — |
| 585-327 | ROCHESTER | 0121 | — | — |
| 585-328 | ROCHESTER | 0121 | — | — |
| 585-333 | ROCHESTER | 0121 | — | Yes |
| 585-334 | HENRIETTA | 0121 | — | — |
| 585-335 | DANSVILLE | 0121 | — | — |
| 585-336 | ROCHESTER | 0121 | — | — |
| 585-338 | ROCHESTER | 0121 | — | — |
| 585-339 | ROCHESTER | 0121 | — | Yes |
| 585-342 | ROCHESTER | 0121 | — | — |
| 585-346 | LIVONIA | 0121 | — | Yes |
| 585-347 | W WEBSTER | 0121 | — | Yes |
| 585-350 | ROCHESTER | 0121 | — | Yes |
| 585-351 | ROCHESTER | 0121 | 2008-07-15 | Yes |
| 585-359 | HENRIETTA | 0121 | — | — |
| 585-367 | HEMLOCK | 0121 | — | Yes |
| 585-368 | ROCHESTER | 0121 | — | Yes |
| 585-374 | NAPLES | 0121 | — | Yes |
| 585-377 | FAIRPORT | 0121 | — | — |
| 585-381 | EROCHESTER | 0121 | — | — |
| 585-382 | LEICESTER | 0121 | — | Yes |
| 585-383 | EROCHESTER | 0121 | — | — |
| 585-384 | COHOCTON | 0121 | — | Yes |
| 585-385 | EROCHESTER | 0121 | — | — |
| 585-387 | EROCHESTER | 0121 | — | — |
| 585-388 | FAIRPORT | 0121 | — | — |
| 585-389 | EROCHESTER | 0121 | — | — |
| 585-393 | CANANDAGUA | 0121 | — | — |
| 585-394 | CANANDAGUA | 0121 | — | — |
| 585-395 | BROCKPORT | 0121 | — | — |
| 585-396 | CANANDAGUA | 0121 | — | — |
| 585-398 | VICTOR | 0121 | — | Yes |
| 585-399 | ROCHESTER | 0121 | — | — |
| 585-413 | ROCHESTER | 0121 | 2004-08-19 | Yes |
| 585-420 | ROCHESTER | 0121 | — | Yes |
| 585-421 | FAIRPORT | 0121 | — | Yes |
| 585-422 | WEBSTER | 0121 | — | — |
| 585-423 | ROCHESTER | 0121 | — | — |
| 585-424 | ROCHESTER | 0121 | — | Yes |
| 585-425 | FAIRPORT | 0121 | — | — |
| 585-426 | ROCHESTER | 0121 | — | — |
| 585-427 | ROCHESTER | 0121 | — | Yes |
| 585-428 | 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.