NumberResearchThousands-blocks in 707-517
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 707-517 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 707 blocks
Most active assignees, all time — NPA 707
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2012-12-04 | 707-517-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | WEOTT | CA |
| — | 707-517-1XXX | 1000–1999 | Reserved | IP HORIZON LLC | 515J | WEOTT | CA |
| — | 707-517-2XXX | 2000–2999 | Reserved | IP HORIZON LLC | 515J | WEOTT | CA |
| 2012-12-04 | 707-517-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | WEOTT | CA |
| — | 707-517-4XXX | 4000–4999 | Available | WEOTT | CA | ||
| 2011-07-28 | 707-517-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WEOTT | CA |
| 2014-10-02 | 707-517-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | WEOTT | CA |
| 2022-09-21 | 707-517-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | WEOTT | CA |
| 2016-08-17 | 707-517-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | WEOTT | CA |
| 2018-07-03 | 707-517-9XXX | 9000–9999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | WEOTT | 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.