NumberResearchThousands-blocks in 914-580
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 914-580 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 914 blocks
Most active assignees, all time — NPA 914
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2012-02-09 | 914-580-0XXX | 0000–0999 | Assigned | ONVOY, LLC- NY | 384C | WSCHSTZN07 | NY |
| 2012-02-09 | 914-580-1XXX | 1000–1999 | Assigned | ONVOY, LLC- NY | 384C | WSCHSTZN07 | NY |
| — | 914-580-2XXX | 2000–2999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | WSCHSTZN07 | NY |
| — | 914-580-3XXX | 3000–3999 | Reserved | LEVEL 3 TELECOM OF NEW YORK, LP - NY | 8473 | WSCHSTZN07 | NY |
| 2019-12-06 | 914-580-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | WSCHSTZN07 | NY |
| 2014-05-19 | 914-580-5XXX | 5000–5999 | Assigned | CABLEVISION LIGHTPATH, INC. - NY | 7126 | WSCHSTZN07 | NY |
| 2015-02-25 | 914-580-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | WSCHSTZN07 | NY |
| 2015-07-01 | 914-580-7XXX | 7000–7999 | Assigned | CABLEVISION LIGHTPATH, INC. - NY | 7126 | WSCHSTZN07 | NY |
| 2012-02-09 | 914-580-8XXX | 8000–8999 | Assigned | ONVOY, LLC- NY | 384C | WSCHSTZN07 | NY |
| — | 914-580-9XXX | 9000–9999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | WSCHSTZN07 | 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.