NumberResearchThousands-blocks in 951-744
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 951-744 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 951 blocks
Most active assignees, all time — NPA 951
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2014-06-17 | 951-744-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | HEMT ANZA | CA |
| 2009-12-07 | 951-744-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | HEMT ANZA | CA |
| 2025-01-02 | 951-744-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HEMT ANZA | CA |
| 2006-03-13 | 951-744-3XXX | 3000–3999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | HEMT ANZA | CA |
| 2014-04-24 | 951-744-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | HEMT ANZA | CA |
| 2016-08-25 | 951-744-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | HEMT ANZA | CA |
| 2014-05-28 | 951-744-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HEMT ANZA | CA |
| 2006-05-12 | 951-744-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | HEMT ANZA | CA |
| 2017-08-02 | 951-744-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | HEMT ANZA | CA |
| 2005-11-23 | 951-744-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | HEMT ANZA | CA |
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.