NumberResearchThousands-blocks in 765-312
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 765-312 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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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 765-312-0XXX | 0000–0999 | Reserved | FRONTIER NORTH, INC.. - IN | 0772 | CAMBDG CY | IN |
| 2005-09-22 | 765-312-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | CAMBDG CY | IN |
| 2009-08-31 | 765-312-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CAMBDG CY | IN |
| 2013-11-06 | 765-312-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | CAMBDG CY | IN |
| 2020-10-05 | 765-312-4XXX | 4000–4999 | Assigned | ONVOY, LLC - IN | 097D | CAMBDG CY | IN |
| 2020-10-05 | 765-312-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IN | 097D | CAMBDG CY | IN |
| — | 765-312-6XXX | 6000–6999 | Available | CAMBDG CY | IN | ||
| 2014-05-13 | 765-312-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CAMBDG CY | IN |
| 2015-07-28 | 765-312-8XXX | 8000–8999 | Assigned | NEW LISBON BROADBAND AND COMMUNICATIONS, LLC - IN | 663H | CAMBDG CY | IN |
| — | 765-312-9XXX | 9000–9999 | Available | CAMBDG CY | IN |
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.