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 |
|---|---|---|---|---|---|---|---|
| 2010-06-02 | 585-229-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HONEOYE | NY |
| 2010-06-02 | 585-236-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | WEBSTER | NY |
| 2010-06-02 | 585-252-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PAVILION | NY |
| 2010-06-02 | 585-289-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SHORTSVL | NY |
| 2010-06-02 | 585-318-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MEDINA | NY |
| 2010-06-02 | 585-347-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | W WEBSTER | NY |
| 2010-06-02 | 585-365-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BELFAST | NY |
| 2010-06-02 | 585-366-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HILTON | NY |
| 2010-06-02 | 585-382-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LEICESTER | NY |
| 2010-06-02 | 585-398-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | VICTOR | NY |
| 2010-06-02 | 585-468-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | NUNDA | NY |
| 2010-06-02 | 585-487-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HENRIETTA | NY |
| 2010-06-02 | 585-497-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HONEOYEFLS | NY |
| 2010-06-02 | 585-502-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LE ROY | NY |
| 2010-06-02 | 585-526-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | STANLEY | NY |
| 2010-06-02 | 585-554-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | RUSHVILLE | NY |
| 2010-06-02 | 585-571-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SCOTTSVL | NY |
| 2010-06-02 | 585-572-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LIVONIA | NY |
| 2010-06-02 | 585-617-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SPENCERPT | NY |
| 2010-06-02 | 585-689-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BLISS | NY |
| 2010-06-02 | 585-763-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | WYOMING | NY |
| 2010-06-01 | 585-206-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HOLLEY | NY |
| 2010-06-01 | 585-207-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | FILLMORE | NY |
| 2010-06-01 | 585-283-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ALBION | NY |
| 2010-06-01 | 585-294-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CALEDONIA | NY |
| 2010-06-01 | 585-299-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CHURCHVL | NY |
| 2010-06-01 | 585-348-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EROCHESTER | NY |
| 2010-06-01 | 585-431-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BROCKPORT | NY |
| 2010-06-01 | 585-447-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | GENESEO | NY |
| 2010-06-01 | 585-457-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | JAVA | NY |
| 2010-06-01 | 585-476-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALTON | NY |
| 2010-06-01 | 585-542-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | AKRON | NY |
| 2010-06-01 | 585-547-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DARIEN | NY |
| 2010-06-01 | 585-548-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BYRON | NY |
| 2010-06-01 | 585-599-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CORFU | NY |
| 2010-06-01 | 585-678-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | FAIRPORT | NY |
| 2010-06-01 | 585-757-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ELBA | NY |
| 2010-06-01 | 585-905-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CANANDAGUA | NY |
| 2010-05-26 | 585-236-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | WEBSTER | NY |
| 2010-05-26 | 585-391-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | BROCKPORT | NY |
| 2010-05-26 | 585-412-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | CANANDAGUA | NY |
| 2010-05-26 | 585-433-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | VICTOR | NY |
| 2010-05-26 | 585-444-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | HENRIETTA | NY |
| 2010-05-26 | 585-447-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | GENESEO | NY |
| 2010-05-26 | 585-497-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | HONEOYEFLS | NY |
| 2010-05-26 | 585-571-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | SCOTTSVL | NY |
| 2010-05-26 | 585-672-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | ROCHESTER | NY |
| 2010-05-25 | 585-420-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | ROCHESTER | NY |
| 2010-05-25 | 585-420-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | ROCHESTER | NY |
| 2010-05-25 | 585-420-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | ROCHESTER | 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.