NumberResearchThousands-blocks in 631-301
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026
The ten 1,000-number thousand-blocks inside prefix 631-301 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
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-06-15 | 631-301-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | FARMINGDL | NY |
| 2016-12-06 | 631-301-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | FARMINGDL | NY |
| 2019-08-15 | 631-301-2XXX | 2000–2999 | Assigned | ONVOY, LLC- NY | 384C | FARMINGDL | NY |
| 2020-05-13 | 631-301-3XXX | 3000–3999 | Assigned | VONAGE AMERICA LLC | 197D | FARMINGDL | NY |
| 2020-05-13 | 631-301-4XXX | 4000–4999 | Assigned | VONAGE AMERICA LLC | 197D | FARMINGDL | NY |
| — | 631-301-5XXX | 5000–5999 | Available | FARMINGDL | NY | ||
| — | 631-301-6XXX | 6000–6999 | Available | FARMINGDL | NY | ||
| — | 631-301-7XXX | 7000–7999 | Available | FARMINGDL | NY | ||
| 2020-05-06 | 631-301-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | FARMINGDL | NY |
| 2021-02-08 | 631-301-9XXX | 9000–9999 | Assigned | UCOMTEL INC. | 534J | FARMINGDL | NY |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.