NumberResearchThousands-blocks in 740-917
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 740-917 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
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2008-12-05 | 740-917-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - OH | 001F | RATHBONE | OH |
| 2020-12-29 | 740-917-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | RATHBONE | OH |
| — | 740-917-2XXX | 2000–2999 | Available | RATHBONE | OH | ||
| — | 740-917-3XXX | 3000–3999 | Available | RATHBONE | OH | ||
| 2004-09-28 | 740-917-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | RATHBONE | OH |
| 2006-08-31 | 740-917-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | RATHBONE | OH |
| — | 740-917-6XXX | 6000–6999 | Available | RATHBONE | OH | ||
| 2025-06-30 | 740-917-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | RATHBONE | OH |
| 2026-07-07 | 740-917-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | RATHBONE | OH |
| 2004-05-13 | 740-917-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | RATHBONE | 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.