NumberResearchThousands-blocks in 725-356
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 725-356 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 725 blocks
Most active assignees, all time — NPA 725
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2020-10-29 | 725-356-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | JEAN | NV |
| 2020-10-19 | 725-356-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NV | 029F | JEAN | NV |
| 2020-10-19 | 725-356-2XXX | 2000–2999 | Assigned | ONVOY, LLC - NV | 029F | JEAN | NV |
| 2020-09-16 | 725-356-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - NV | 075F | JEAN | NV |
| 2020-09-10 | 725-356-4XXX | 4000–4999 | Assigned | HD CARRIER LLC | 321J | JEAN | NV |
| 2020-07-27 | 725-356-5XXX | 5000–5999 | Assigned | ONVOY, LLC - NV | 029F | JEAN | NV |
| 2020-07-27 | 725-356-6XXX | 6000–6999 | Assigned | ONVOY, LLC - NV | 029F | JEAN | NV |
| 2020-07-13 | 725-356-7XXX | 7000–7999 | Assigned | FRACTEL, LLC | 965H | JEAN | NV |
| 2020-09-10 | 725-356-8XXX | 8000–8999 | Assigned | HD CARRIER LLC | 321J | JEAN | NV |
| 2020-07-13 | 725-356-9XXX | 9000–9999 | Assigned | FRACTEL, LLC | 965H | JEAN | NV |
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.