NumberResearchThousands-blocks in 765-731
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 765-731 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
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2018-04-27 | 765-731-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | ROCKVILLE | IN |
| 2016-02-15 | 765-731-1XXX | 1000–1999 | Assigned | BLOOMINGDALE HOME TELEPHONE COMPANY, INC. - IN | 731H | ROCKVILLE | IN |
| 2019-10-18 | 765-731-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IN | 097D | ROCKVILLE | IN |
| 2019-10-18 | 765-731-3XXX | 3000–3999 | Assigned | ONVOY, LLC - IN | 097D | ROCKVILLE | IN |
| 2021-03-02 | 765-731-4XXX | 4000–4999 | Assigned | ONVOY, LLC - IN | 097D | ROCKVILLE | IN |
| 2021-03-02 | 765-731-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IN | 097D | ROCKVILLE | IN |
| — | 765-731-6XXX | 6000–6999 | Available | ROCKVILLE | IN | ||
| 2024-07-19 | 765-731-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ROCKVILLE | IN |
| 2024-03-05 | 765-731-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROCKVILLE | IN |
| 2021-03-31 | 765-731-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF INDIANA, LLC - IN | 279F | ROCKVILLE | 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.