NumberResearchThousands-blocks in 516-878
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 516-878 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 516 blocks
Most active assignees, all time — NPA 516
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2020-06-30 | 516-878-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | NASSAUZN07 | NY |
| 2021-02-08 | 516-878-1XXX | 1000–1999 | Assigned | UCOMTEL INC. | 534J | NASSAUZN07 | NY |
| 2021-11-08 | 516-878-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NASSAUZN07 | NY |
| 2021-11-08 | 516-878-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NASSAUZN07 | NY |
| 2020-05-18 | 516-878-4XXX | 4000–4999 | Assigned | VONAGE AMERICA LLC | 197D | NASSAUZN07 | NY |
| 2022-03-01 | 516-878-5XXX | 5000–5999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | NASSAUZN07 | NY |
| 2021-04-27 | 516-878-6XXX | 6000–6999 | Assigned | PEERING HUB, INC. - NY | 818H | NASSAUZN07 | NY |
| 2020-05-18 | 516-878-7XXX | 7000–7999 | Assigned | VONAGE AMERICA LLC | 197D | NASSAUZN07 | NY |
| 2021-12-13 | 516-878-8XXX | 8000–8999 | Assigned | CABLEVISION LIGHTPATH, INC. - NY | 7126 | NASSAUZN07 | NY |
| 2021-09-02 | 516-878-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | NASSAUZN07 | 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.