NumberResearchRecent thousands-block assignments
5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, last 30 days — NPA 585
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2015-12-02 | 585-628-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | BELFAST | NY |
| 2015-11-19 | 585-629-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | ROCHESTER | NY |
| 2015-11-10 | 585-430-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FAIRPORT | NY |
| 2015-11-10 | 585-433-9XXX | 9000–9999 | Assigned | FINGER LAKES TECHNOLOGIES GROUP, INC. - NY | 629E | VICTOR | NY |
| 2015-11-10 | 585-978-8XXX | 8000–8999 | Assigned | FINGER LAKES TECHNOLOGIES GROUP, INC. - NY | 629E | ROCHESTER | NY |
| 2015-10-28 | 585-498-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | ROCHESTER | NY |
| 2015-10-28 | 585-498-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | ROCHESTER | NY |
| 2015-10-28 | 585-498-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | ROCHESTER | NY |
| 2015-10-28 | 585-498-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | ROCHESTER | NY |
| 2015-10-28 | 585-498-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | ROCHESTER | NY |
| 2015-10-19 | 585-498-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | ROCHESTER | NY |
| 2015-10-16 | 585-449-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | BELMONT | NY |
| 2015-10-12 | 585-213-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WAYLAND | NY |
| 2015-10-09 | 585-933-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | OLEAN | NY |
| 2015-09-30 | 585-416-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WATERPORT | NY |
| 2015-09-29 | 585-326-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | AKRON | NY |
| 2015-09-29 | 585-498-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | ROCHESTER | NY |
| 2015-09-29 | 585-536-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | BATAVIA | NY |
| 2015-09-29 | 585-664-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | BATAVIA | NY |
| 2015-09-25 | 585-433-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | VICTOR | NY |
| 2015-09-11 | 585-228-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | WARSAW | NY |
| 2015-09-11 | 585-417-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ROCHESTER | NY |
| 2015-09-11 | 585-417-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ROCHESTER | NY |
| 2015-09-11 | 585-417-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ROCHESTER | NY |
| 2015-09-11 | 585-432-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | DANSVILLE | NY |
| 2015-09-04 | 585-357-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | ALBION | NY |
| 2015-09-01 | 585-524-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BATAVIA | NY |
| 2015-08-31 | 585-358-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | HENRIETTA | NY |
| 2015-08-13 | 585-485-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | EROCHESTER | NY |
| 2015-08-07 | 585-417-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ROCHESTER | NY |
| 2015-08-04 | 585-364-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | FAIRPORT | NY |
| 2015-08-04 | 585-417-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ROCHESTER | NY |
| 2015-07-31 | 585-337-4XXX | 4000–4999 | Assigned | FINGER LAKES TECHNOLOGIES GROUP, INC. - NY | 629E | CANANDAGUA | NY |
| 2015-07-30 | 585-417-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | ROCHESTER | NY |
| 2015-07-30 | 585-417-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | ROCHESTER | NY |
| 2015-07-30 | 585-417-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | ROCHESTER | NY |
| 2015-07-22 | 585-491-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | ROCHESTER | NY |
| 2015-07-22 | 585-491-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | ROCHESTER | NY |
| 2015-07-22 | 585-532-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | ROCHESTER | NY |
| 2015-07-22 | 585-532-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | ROCHESTER | NY |
| 2015-07-22 | 585-532-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | ROCHESTER | NY |
| 2015-07-22 | 585-622-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | ROCHESTER | NY |
| 2015-07-22 | 585-622-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ROCHESTER | NY |
| 2015-07-22 | 585-623-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ROCHESTER | NY |
| 2015-07-21 | 585-380-9XXX | 9000–9999 | Assigned | ONVOY, LLC- NY | 384C | BLISS | NY |
| 2015-07-21 | 585-386-8XXX | 8000–8999 | Assigned | ONVOY, LLC- NY | 384C | ANGELICA | NY |
| 2015-07-21 | 585-628-8XXX | 8000–8999 | Assigned | ONVOY, LLC- NY | 384C | BELFAST | NY |
| 2015-07-21 | 585-973-0XXX | 0000–0999 | Assigned | ONVOY, LLC- NY | 384C | FRIENDSHIP | NY |
| 2015-07-17 | 585-597-9XXX | 9000–9999 | Assigned | EMPIRE LONG DISTANCE CORPORATION | 087H | CORFU | NY |
| 2015-07-14 | 585-483-3XXX | 3000–3999 | Assigned | EMPIRE LONG DISTANCE CORPORATION | 087H | BATAVIA | NY |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.