NumberResearchThousands-blocks in 765-439
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 765-439 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 765 blocks
Most active assignees, all time — NPA 765
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 765-439-0XXX | 0000–0999 | Reserved | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CENTERVL | IN |
| 2005-09-22 | 765-439-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | CENTERVL | IN |
| 2011-03-17 | 765-439-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | CENTERVL | IN |
| 2013-02-01 | 765-439-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | CENTERVL | IN |
| 2005-02-25 | 765-439-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | CENTERVL | IN |
| 2016-12-14 | 765-439-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IN | 7314 | CENTERVL | IN |
| 2019-11-04 | 765-439-6XXX | 6000–6999 | Assigned | ONVOY, LLC - IN | 097D | CENTERVL | IN |
| 2014-05-13 | 765-439-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CENTERVL | IN |
| 2020-09-30 | 765-439-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IN | 097D | CENTERVL | IN |
| 2020-09-30 | 765-439-9XXX | 9000–9999 | Assigned | ONVOY, LLC - IN | 097D | CENTERVL | IN |
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.