NumberResearchThousands-blocks in 740-738
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 740-738 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
Sep 2026
Aug 2026
Jul 2026
Jun 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2005-04-01 | 740-738-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | MARTISFRRY | OH |
| 2016-09-12 | 740-738-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MARTISFRRY | OH |
| 2010-09-16 | 740-738-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - OH | 001F | MARTISFRRY | OH |
| 2014-04-23 | 740-738-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - OH | 001F | MARTISFRRY | OH |
| 2014-07-15 | 740-738-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | MARTISFRRY | OH |
| 2015-06-08 | 740-738-5XXX | 5000–5999 | Assigned | ONVOY, LLC - OH | 464C | MARTISFRRY | OH |
| 2013-07-11 | 740-738-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - OH | 7532 | MARTISFRRY | OH |
| 2014-06-06 | 740-738-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | MARTISFRRY | OH |
| 2013-09-23 | 740-738-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF OHIO, LLC - OH | 284F | MARTISFRRY | OH |
| 2026-01-14 | 740-738-9XXX | 9000–9999 | Assigned | ONVOY, LLC - OH | 464C | MARTISFRRY | OH |
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.