All assignees
699 prefixes in 585 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 585-300 | BATAVIA | 6622 | — | Yes |
| 585-301 | ROCHESTER | 829J | 2004-08-03 | Yes |
| 585-302 | PERRY | 7140 | 2001-04-11 | Yes |
| 585-303 | ROCHESTER | 6622 | — | Yes |
| 585-304 | OAKFIELD | 155E | 2016-03-09 | Yes |
| 585-305 | ROCHESTER | 6622 | — | Yes |
| 585-306 | ROCHESTER | 0121 | — | — |
| 585-307 | OLEAN | 6959 | — | Yes |
| 585-308 | LE ROY | 997E | 2010-10-14 | Yes |
| 585-309 | EROCHESTER | 6622 | 2002-06-10 | Yes |
| 585-310 | EROCHESTER | 997E | 2010-07-13 | Yes |
| 585-311 | XXXXXXXXXX | MULT | — | — |
| 585-312 | ELBA | 155E | 2016-03-18 | Yes |
| 585-313 | ROCHESTER | 6959 | — | Yes |
| 585-314 | ROCHESTER | 6959 | — | — |
| 585-315 | ROCHESTER | 6959 | — | — |
| 585-316 | KENDALL | 155E | 2016-03-18 | Yes |
| 585-317 | ROCHESTER | 6622 | — | Yes |
| 585-318 | MEDINA | 793K | — | Yes |
| 585-319 | ROCHESTER | 793K | — | Yes |
| 585-320 | ROCHESTER | 0121 | — | — |
| 585-321 | HENRIETTA | 0121 | — | Yes |
| 585-322 | BLISS | 9104 | — | Yes |
| 585-323 | ROCHESTER | 0121 | — | Yes |
| 585-324 | ROCHESTER | 0121 | — | Yes |
| 585-325 | ROCHESTER | 0121 | — | — |
| 585-326 | AKRON | 997E | 2010-09-16 | Yes |
| 585-327 | ROCHESTER | 0121 | — | — |
| 585-328 | ROCHESTER | 0121 | — | — |
| 585-329 | ROCHESTER | 6959 | — | — |
| 585-330 | ROCHESTER | 6959 | — | — |
| 585-331 | ALBION | 7140 | — | Yes |
| 585-332 | LYNDONVL | 997E | 2011-02-21 | Yes |
| 585-333 | ROCHESTER | 0121 | — | Yes |
| 585-334 | HENRIETTA | 0121 | — | — |
| 585-335 | DANSVILLE | 0121 | — | — |
| 585-336 | ROCHESTER | 0121 | — | — |
| 585-337 | CANANDAGUA | 997E | 2010-09-17 | Yes |
| 585-338 | ROCHESTER | 0121 | — | — |
| 585-339 | ROCHESTER | 0121 | — | Yes |
| 585-340 | ROCHESTER | 8473 | — | Yes |
| 585-341 | ROCHESTER | 8473 | — | Yes |
| 585-342 | ROCHESTER | 0121 | — | — |
| 585-343 | BATAVIA | 9104 | — | — |
| 585-344 | BATAVIA | 9104 | — | — |
| 585-345 | BATAVIA | 9104 | — | — |
| 585-346 | LIVONIA | 0121 | — | Yes |
| 585-347 | W WEBSTER | 0121 | — | Yes |
| 585-348 | EROCHESTER | 4036 | 2008-06-19 | Yes |
| 585-349 | SPENCERPT | 0110 | — | — |
| 585-350 | ROCHESTER | 0121 | — | Yes |
| 585-351 | ROCHESTER | 0121 | 2008-07-15 | Yes |
| 585-352 | SPENCERPT | 0110 | — | — |
| 585-353 | ROCHESTER | 6959 | 2011-04-07 | Yes |
| 585-354 | ROCHESTER | 4036 | 2004-05-07 | Yes |
| 585-355 | ROCHESTER | 793K | — | Yes |
| 585-356 | BATAVIA | 6959 | — | — |
| 585-357 | ALBION | 829J | 2013-10-04 | Yes |
| 585-358 | HENRIETTA | 7133 | 2011-06-01 | Yes |
| 585-359 | HENRIETTA | 0121 | — | — |
| 585-360 | ROCHESTER | 6622 | 2006-01-11 | Yes |
| 585-361 | SHORTSVL | 0113 | 2011-05-09 | Yes |
| 585-362 | ROCHESTER | 6959 | 2007-08-08 | Yes |
| 585-363 | ROCHESTER | 508J | 2014-07-29 | Yes |
| 585-364 | FAIRPORT | 997E | 2011-05-03 | Yes |
| 585-365 | BELFAST | 9104 | — | Yes |
| 585-366 | HILTON | 793K | — | Yes |
| 585-367 | HEMLOCK | 0121 | — | Yes |
| 585-368 | ROCHESTER | 0121 | — | Yes |
| 585-369 | ROCHESTER | 4036 | 2012-01-30 | Yes |
| 585-370 | ROCHESTER | 6622 | — | Yes |
| 585-371 | ROCHESTER | 6622 | 2011-07-06 | Yes |
| 585-372 | OLEAN | 829J | — | Yes |
| 585-373 | OLEAN | 829J | — | Yes |
| 585-374 | NAPLES | 0121 | — | Yes |
| 585-375 | OLEAN | 829J | — | Yes |
| 585-376 | OLEAN | 997E | — | Yes |
| 585-377 | FAIRPORT | 0121 | — | — |
| 585-378 | OLEAN | 4036 | — | Yes |
| 585-379 | OLEAN | 508J | — | Yes |
| 585-380 | BLISS | 997E | 2011-09-08 | Yes |
| 585-381 | EROCHESTER | 0121 | — | — |
| 585-382 | LEICESTER | 0121 | — | Yes |
| 585-383 | EROCHESTER | 0121 | — | — |
| 585-384 | COHOCTON | 0121 | — | Yes |
| 585-385 | EROCHESTER | 0121 | — | — |
| 585-386 | ANGELICA | 4036 | 2011-10-19 | Yes |
| 585-387 | EROCHESTER | 0121 | — | — |
| 585-388 | FAIRPORT | 0121 | — | — |
| 585-389 | EROCHESTER | 0121 | — | — |
| 585-390 | BYRON | 384C | 2016-05-02 | Yes |
| 585-391 | BROCKPORT | 829J | — | Yes |
| 585-392 | HILTON | 0110 | — | — |
| 585-393 | CANANDAGUA | 0121 | — | — |
| 585-394 | CANANDAGUA | 0121 | — | — |
| 585-395 | BROCKPORT | 0121 | — | — |
| 585-396 | CANANDAGUA | 0121 | — | — |
| 585-397 | ROCHESTER | 7133 | 2012-06-11 | Yes |
| 585-398 | VICTOR | 0121 | — | Yes |
| 585-399 | 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.