NumberResearchThousands-blocks in 585-376
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026
The ten 1,000-number thousand-blocks inside prefix 585-376 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 585 blocks
Most active assignees, all time — NPA 585
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2008-12-29 | 585-376-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | OLEAN | NY |
| 2010-08-16 | 585-376-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | OLEAN | NY |
| — | 585-376-2XXX | 2000–2999 | Reserved | BANDWIDTH.COM CLEC, LLC - NY | 997E | OLEAN | NY |
| 2018-10-25 | 585-376-3XXX | 3000–3999 | Assigned | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | OLEAN | NY |
| 2014-04-01 | 585-376-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | OLEAN | NY |
| 2012-12-21 | 585-376-5XXX | 5000–5999 | Assigned | ONVOY, LLC- NY | 384C | OLEAN | NY |
| — | 585-376-6XXX | 6000–6999 | Reserved | VERIZON NEW YORK, INC. | 9104 | OLEAN | NY |
| 2014-05-29 | 585-376-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | OLEAN | NY |
| — | 585-376-8XXX | 8000–8999 | Reserved | TWC IP ENABLED SERVICES, LLC | 793K | OLEAN | NY |
| 2013-12-17 | 585-376-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | OLEAN | 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.