NumberResearchThousands-blocks in 740-787
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 740-787 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 740 blocks
Most active assignees, all time — NPA 740
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-03-05 | 740-787-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GRATIOT | OH |
| — | 740-787-1XXX | 1000–1999 | Reserved | WINDSTREAM OHIO, LLC | 0665 | GRATIOT | OH |
| — | 740-787-2XXX | 2000–2999 | Reserved | WINDSTREAM OHIO, LLC | 0665 | GRATIOT | OH |
| 2012-12-05 | 740-787-3XXX | 3000–3999 | Assigned | HORIZON SERVICES, INC. - OH | 601G | GRATIOT | OH |
| 2021-08-11 | 740-787-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | GRATIOT | OH |
| 2007-12-12 | 740-787-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | GRATIOT | OH |
| 2016-05-09 | 740-787-6XXX | 6000–6999 | Assigned | ONVOY, LLC - OH | 464C | GRATIOT | OH |
| 2015-05-27 | 740-787-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GRATIOT | OH |
| — | 740-787-8XXX | 8000–8999 | Reserved | WINDSTREAM OHIO, LLC | 0665 | GRATIOT | OH |
| — | 740-787-9XXX | 9000–9999 | Reserved | WINDSTREAM OHIO, LLC | 0665 | GRATIOT | OH |
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.