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 |
|---|---|---|---|---|---|---|---|
| 2021-04-01 | 585-842-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LYNDONVL | NY |
| 2021-03-31 | 585-408-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ARCADE | NY |
| 2021-03-31 | 585-522-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BELMONT | NY |
| 2021-03-31 | 585-553-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BATAVIA | NY |
| 2021-03-31 | 585-559-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ROCHESTER | NY |
| 2021-03-31 | 585-566-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BLISS | NY |
| 2021-03-31 | 585-580-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ANGELICA | NY |
| 2021-03-31 | 585-597-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CORFU | NY |
| 2021-03-31 | 585-677-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHAFFEE | NY |
| 2021-03-31 | 585-708-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ATTICA | NY |
| 2021-03-31 | 585-855-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BOLIVAR | NY |
| 2021-03-31 | 585-937-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ALDEN | NY |
| 2021-03-31 | 585-946-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | AKRON | NY |
| 2021-03-19 | 585-480-6XXX | 6000–6999 | Assigned | ONVOY, LLC- NY | 384C | MIDDLEPORT | NY |
| 2021-03-19 | 585-480-7XXX | 7000–7999 | Assigned | ONVOY, LLC- NY | 384C | MIDDLEPORT | NY |
| 2021-03-19 | 585-539-4XXX | 4000–4999 | Assigned | ONVOY, LLC- NY | 384C | CUBA | NY |
| 2021-03-19 | 585-539-5XXX | 5000–5999 | Assigned | ONVOY, LLC- NY | 384C | CUBA | NY |
| 2021-03-19 | 585-596-7XXX | 7000–7999 | Assigned | ONVOY, LLC- NY | 384C | WELLSVILLE | NY |
| 2021-03-19 | 585-655-6XXX | 6000–6999 | Assigned | ONVOY, LLC- NY | 384C | EASTAURORA | NY |
| 2021-03-19 | 585-677-8XXX | 8000–8999 | Assigned | ONVOY, LLC- NY | 384C | CHAFFEE | NY |
| 2021-03-17 | 585-806-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | OLEAN | NY |
| 2021-03-16 | 585-513-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BERGEN | NY |
| 2021-03-16 | 585-652-3XXX | 3000–3999 | Assigned | ONVOY, LLC- NY | 384C | EASTAURORA | NY |
| 2021-03-16 | 585-652-4XXX | 4000–4999 | Assigned | ONVOY, LLC- NY | 384C | EASTAURORA | NY |
| 2021-03-16 | 585-652-5XXX | 5000–5999 | Assigned | ONVOY, LLC- NY | 384C | EASTAURORA | NY |
| 2021-03-16 | 585-667-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | WEBSTER | NY |
| 2021-03-16 | 585-817-7XXX | 7000–7999 | Assigned | ONVOY, LLC- NY | 384C | PAVILION | NY |
| 2021-03-16 | 585-821-5XXX | 5000–5999 | Assigned | ONVOY, LLC- NY | 384C | STANLEY | NY |
| 2021-03-16 | 585-821-8XXX | 8000–8999 | Assigned | ONVOY, LLC- NY | 384C | STANLEY | NY |
| 2021-03-03 | 585-688-8XXX | 8000–8999 | Assigned | FRACTEL, LLC | 965H | BROCKPORT | NY |
| 2021-02-26 | 585-565-0XXX | 0000–0999 | Assigned | ONVOY, LLC- NY | 384C | ROCHESTER | NY |
| 2021-02-26 | 585-565-1XXX | 1000–1999 | Assigned | ONVOY, LLC- NY | 384C | ROCHESTER | NY |
| 2021-02-26 | 585-565-9XXX | 9000–9999 | Assigned | ONVOY, LLC- NY | 384C | ROCHESTER | NY |
| 2021-02-26 | 585-877-0XXX | 0000–0999 | Assigned | ONVOY, LLC- NY | 384C | ROCHESTER | NY |
| 2021-02-26 | 585-877-1XXX | 1000–1999 | Assigned | ONVOY, LLC- NY | 384C | ROCHESTER | NY |
| 2021-02-26 | 585-877-8XXX | 8000–8999 | Assigned | ONVOY, LLC- NY | 384C | ROCHESTER | NY |
| 2021-02-26 | 585-877-9XXX | 9000–9999 | Assigned | ONVOY, LLC- NY | 384C | ROCHESTER | NY |
| 2021-02-26 | 585-910-1XXX | 1000–1999 | Assigned | ONVOY, LLC- NY | 384C | ROCHESTER | NY |
| 2021-02-26 | 585-910-8XXX | 8000–8999 | Assigned | ONVOY, LLC- NY | 384C | ROCHESTER | NY |
| 2021-02-24 | 585-565-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | ROCHESTER | NY |
| 2021-02-22 | 585-316-7XXX | 7000–7999 | Assigned | ONVOY, LLC- NY | 384C | KENDALL | NY |
| 2021-02-22 | 585-390-7XXX | 7000–7999 | Assigned | ONVOY, LLC- NY | 384C | BYRON | NY |
| 2021-02-22 | 585-522-5XXX | 5000–5999 | Assigned | ONVOY, LLC- NY | 384C | BELMONT | NY |
| 2021-02-22 | 585-523-5XXX | 5000–5999 | Assigned | ONVOY, LLC- NY | 384C | WATERPORT | NY |
| 2021-02-22 | 585-553-3XXX | 3000–3999 | Assigned | ONVOY, LLC- NY | 384C | BATAVIA | NY |
| 2021-02-22 | 585-566-5XXX | 5000–5999 | Assigned | ONVOY, LLC- NY | 384C | BLISS | NY |
| 2021-02-22 | 585-597-8XXX | 8000–8999 | Assigned | ONVOY, LLC- NY | 384C | CORFU | NY |
| 2021-02-22 | 585-656-5XXX | 5000–5999 | Assigned | ONVOY, LLC- NY | 384C | ATTICA | NY |
| 2021-02-22 | 585-684-5XXX | 5000–5999 | Assigned | ONVOY, LLC- NY | 384C | HOLLEY | NY |
| 2021-02-22 | 585-842-1XXX | 1000–1999 | Assigned | ONVOY, LLC- NY | 384C | LYNDONVL | 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.