NumberResearchThousands-blocks in 865-408
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026
The ten 1,000-number thousand-blocks inside prefix 865-408 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 865 blocks
Most active assignees, last 30 days — NPA 865
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 865-408-0XXX | 0000–0999 | Reserved | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | LOUDON | TN |
| — | 865-408-1XXX | 1000–1999 | Reserved | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | LOUDON | TN |
| — | 865-408-2XXX | 2000–2999 | Reserved | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | LOUDON | TN |
| — | 865-408-3XXX | 3000–3999 | Reserved | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | LOUDON | TN |
| 2004-07-22 | 865-408-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | LOUDON | TN |
| 2026-09-14 | 865-408-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | LOUDON | TN |
| 2014-04-10 | 865-408-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LOUDON | TN |
| 2004-10-21 | 865-408-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | LOUDON | TN |
| 2008-10-30 | 865-408-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | LOUDON | TN |
| — | 865-408-9XXX | 9000–9999 | Reserved | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | LOUDON | TN |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.