NumberResearchThousands-blocks in 325-866
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 325-866 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 325 blocks
Most active assignees, all time — NPA 325
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-12-10 | 325-866-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | SNYDER | TX |
| 2019-04-02 | 325-866-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | SNYDER | TX |
| 2021-05-24 | 325-866-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | SNYDER | TX |
| 2015-12-22 | 325-866-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNYDER | TX |
| — | 325-866-4XXX | 4000–4999 | Available | SNYDER | TX | ||
| — | 325-866-5XXX | 5000–5999 | Available | SNYDER | TX | ||
| 2018-09-06 | 325-866-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | SNYDER | TX |
| 2008-02-19 | 325-866-7XXX | 7000–7999 | Assigned | SOUTHWESTERN BELL | 9533 | SNYDER | TX |
| — | 325-866-8XXX | 8000–8999 | Available | SNYDER | TX | ||
| 2023-12-10 | 325-866-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | SNYDER | TX |
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.