NumberResearchThousands-blocks in 631-954
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 631-954 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 |
|---|---|---|---|---|---|---|---|
| 2005-06-21 | 631-954-0XXX | 0000–0999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BAY SHORE | NY |
| 2010-10-13 | 631-954-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | BAY SHORE | NY |
| 2011-06-07 | 631-954-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | BAY SHORE | NY |
| 2007-09-18 | 631-954-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BAY SHORE | NY |
| 2012-01-30 | 631-954-4XXX | 4000–4999 | Assigned | TELENGY L.L.C. - NY | 473G | BAY SHORE | NY |
| 2009-09-09 | 631-954-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | BAY SHORE | NY |
| 2010-10-13 | 631-954-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | BAY SHORE | NY |
| 2012-10-26 | 631-954-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | BAY SHORE | NY |
| 2011-01-12 | 631-954-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | BAY SHORE | NY |
| 2026-02-19 | 631-954-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BAY SHORE | 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.