NumberResearchThousands-blocks in 631-960
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 631-960 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 |
|---|---|---|---|---|---|---|---|
| — | 631-960-0XXX | 0000–0999 | Reserved | TC SYSTEMS, INC. - NY | 7140 | ISLIP | NY |
| 2003-08-28 | 631-960-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | ISLIP | NY |
| 2003-08-28 | 631-960-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | ISLIP | NY |
| 2004-02-23 | 631-960-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | ISLIP | NY |
| 2021-03-01 | 631-960-4XXX | 4000–4999 | Assigned | UCOMTEL INC. | 534J | ISLIP | NY |
| 2004-05-12 | 631-960-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | ISLIP | NY |
| 2004-09-09 | 631-960-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | ISLIP | NY |
| 2005-03-21 | 631-960-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | ISLIP | NY |
| 2004-08-25 | 631-960-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | ISLIP | NY |
| 2014-07-08 | 631-960-9XXX | 9000–9999 | Assigned | HD CARRIER LLC | 321J | 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.