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 |
|---|---|---|---|---|---|---|---|
| 2016-04-28 | 585-487-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | HENRIETTA | NY |
| 2016-04-19 | 585-642-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | ROCHESTER | NY |
| 2016-04-18 | 585-483-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BATAVIA | NY |
| 2016-04-18 | 585-642-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ROCHESTER | NY |
| 2016-04-18 | 585-642-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | ROCHESTER | NY |
| 2016-04-11 | 585-736-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ROCHESTER | NY |
| 2016-03-28 | 585-237-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PERRY | NY |
| 2016-03-28 | 585-648-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WELLSVILLE | NY |
| 2016-03-28 | 585-883-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | MT MORRIS | NY |
| 2016-03-18 | 585-312-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | ELBA | NY |
| 2016-03-18 | 585-316-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | KENDALL | NY |
| 2016-03-17 | 585-332-4XXX | 4000–4999 | Assigned | ONVOY, LLC- NY | 384C | LYNDONVL | NY |
| 2016-03-17 | 585-332-5XXX | 5000–5999 | Assigned | ONVOY, LLC- NY | 384C | LYNDONVL | NY |
| 2016-03-17 | 585-800-3XXX | 3000–3999 | Assigned | ONVOY, LLC- NY | 384C | BOLIVAR | NY |
| 2016-03-17 | 585-800-4XXX | 4000–4999 | Assigned | ONVOY, LLC- NY | 384C | BOLIVAR | NY |
| 2016-03-17 | 585-866-3XXX | 3000–3999 | Assigned | ONVOY, LLC- NY | 384C | MIDDLEPORT | NY |
| 2016-03-17 | 585-866-4XXX | 4000–4999 | Assigned | ONVOY, LLC- NY | 384C | MIDDLEPORT | NY |
| 2016-03-16 | 585-437-6XXX | 6000–6999 | Assigned | ONVOY, LLC- NY | 384C | RUSHFORD | NY |
| 2016-03-16 | 585-437-8XXX | 8000–8999 | Assigned | ONVOY, LLC- NY | 384C | RUSHFORD | NY |
| 2016-03-16 | 585-628-1XXX | 1000–1999 | Assigned | ONVOY, LLC- NY | 384C | BELFAST | NY |
| 2016-03-16 | 585-628-2XXX | 2000–2999 | Assigned | ONVOY, LLC- NY | 384C | BELFAST | NY |
| 2016-03-16 | 585-664-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BATAVIA | NY |
| 2016-03-16 | 585-900-5XXX | 5000–5999 | Assigned | ONVOY, LLC- NY | 384C | CHAFFEE | NY |
| 2016-03-16 | 585-900-6XXX | 6000–6999 | Assigned | ONVOY, LLC- NY | 384C | CHAFFEE | NY |
| 2016-03-15 | 585-380-3XXX | 3000–3999 | Assigned | ONVOY, LLC- NY | 384C | BLISS | NY |
| 2016-03-15 | 585-380-4XXX | 4000–4999 | Assigned | ONVOY, LLC- NY | 384C | BLISS | NY |
| 2016-03-15 | 585-535-9XXX | 9000–9999 | Assigned | ONVOY, LLC- NY | 384C | VARYSBURG | NY |
| 2016-03-15 | 585-539-7XXX | 7000–7999 | Assigned | ONVOY, LLC- NY | 384C | CUBA | NY |
| 2016-03-15 | 585-539-8XXX | 8000–8999 | Assigned | ONVOY, LLC- NY | 384C | CUBA | NY |
| 2016-03-14 | 585-318-0XXX | 0000–0999 | Assigned | ONVOY, LLC- NY | 384C | MEDINA | NY |
| 2016-03-14 | 585-318-8XXX | 8000–8999 | Assigned | ONVOY, LLC- NY | 384C | MEDINA | NY |
| 2016-03-14 | 585-326-5XXX | 5000–5999 | Assigned | ONVOY, LLC- NY | 384C | AKRON | NY |
| 2016-03-14 | 585-326-9XXX | 9000–9999 | Assigned | ONVOY, LLC- NY | 384C | AKRON | NY |
| 2016-03-11 | 585-676-4XXX | 4000–4999 | Assigned | ONVOY, LLC- NY | 384C | FRANKLINVL | NY |
| 2016-03-11 | 585-676-6XXX | 6000–6999 | Assigned | ONVOY, LLC- NY | 384C | FRANKLINVL | NY |
| 2016-03-09 | 585-304-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | OAKFIELD | NY |
| 2016-03-09 | 585-386-1XXX | 1000–1999 | Assigned | ONVOY, LLC- NY | 384C | ANGELICA | NY |
| 2016-03-09 | 585-386-2XXX | 2000–2999 | Assigned | ONVOY, LLC- NY | 384C | ANGELICA | NY |
| 2016-03-08 | 585-378-4XXX | 4000–4999 | Assigned | ONVOY, LLC- NY | 384C | OLEAN | NY |
| 2016-03-08 | 585-378-5XXX | 5000–5999 | Assigned | ONVOY, LLC- NY | 384C | OLEAN | NY |
| 2016-03-04 | 585-684-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | HOLLEY | NY |
| 2016-03-04 | 585-973-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | FRIENDSHIP | NY |
| 2016-03-03 | 585-449-2XXX | 2000–2999 | Assigned | ONVOY, LLC- NY | 384C | BELMONT | NY |
| 2016-03-03 | 585-449-4XXX | 4000–4999 | Assigned | ONVOY, LLC- NY | 384C | BELMONT | NY |
| 2016-03-01 | 585-416-4XXX | 4000–4999 | Assigned | ONVOY, LLC- NY | 384C | WATERPORT | NY |
| 2016-03-01 | 585-416-6XXX | 6000–6999 | Assigned | ONVOY, LLC- NY | 384C | WATERPORT | NY |
| 2016-03-01 | 585-684-7XXX | 7000–7999 | Assigned | ONVOY, LLC- NY | 384C | HOLLEY | NY |
| 2016-03-01 | 585-684-8XXX | 8000–8999 | Assigned | ONVOY, LLC- NY | 384C | HOLLEY | NY |
| 2016-03-01 | 585-999-2XXX | 2000–2999 | Assigned | ONVOY, LLC- NY | 384C | JAVA | NY |
| 2016-03-01 | 585-999-3XXX | 3000–3999 | Assigned | ONVOY, LLC- NY | 384C | JAVA | 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.