NumberResearchThousands-blocks in 740-563
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 740-563 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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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-07-20 | 740-563-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | MINGO JCT | OH |
| 2013-04-03 | 740-563-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF OHIO, LLC - OH | 284F | MINGO JCT | OH |
| 2014-03-07 | 740-563-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - OH | 001F | MINGO JCT | OH |
| 2012-09-17 | 740-563-3XXX | 3000–3999 | Assigned | ONVOY, LLC - OH | 464C | MINGO JCT | OH |
| 2005-03-14 | 740-563-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | MINGO JCT | OH |
| 2016-03-10 | 740-563-5XXX | 5000–5999 | Assigned | ONVOY, LLC - OH | 464C | MINGO JCT | OH |
| 2016-03-10 | 740-563-6XXX | 6000–6999 | Assigned | ONVOY, LLC - OH | 464C | MINGO JCT | OH |
| — | 740-563-7XXX | 7000–7999 | Assigned (pending) | MINGO JCT | OH | ||
| 2013-04-03 | 740-563-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF OHIO, LLC - OH | 284F | MINGO JCT | OH |
| — | 740-563-9XXX | 9000–9999 | Available | MINGO JCT | 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.