NumberResearchThousands-blocks in 631-859
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 631-859 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 631 blocks
Most active assignees, all time — NPA 631
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 631-859-0XXX | 0000–0999 | Reserved | VERIZON NEW YORK, INC. | 9104 | ISLIP | NY |
| — | 631-859-1XXX | 1000–1999 | Reserved | VERIZON NEW YORK, INC. | 9104 | ISLIP | NY |
| 2025-10-31 | 631-859-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ISLIP | NY |
| — | 631-859-3XXX | 3000–3999 | Reserved | VERIZON NEW YORK, INC. | 9104 | ISLIP | NY |
| 2021-02-02 | 631-859-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ISLIP | NY |
| 2026-01-15 | 631-859-5XXX | 5000–5999 | Assigned | ONVOY, LLC- NY | 384C | ISLIP | NY |
| 2011-10-31 | 631-859-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | ISLIP | NY |
| 2018-03-20 | 631-859-7XXX | 7000–7999 | Assigned | ONVOY, LLC- NY | 384C | ISLIP | NY |
| — | 631-859-8XXX | 8000–8999 | Reserved | VERIZON NEW YORK, INC. | 9104 | ISLIP | NY |
| 2025-03-12 | 631-859-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ISLIP | 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.