NumberResearchThousands-blocks in 740-486
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 740-486 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 |
|---|---|---|---|---|---|---|---|
| 2012-08-06 | 740-486-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - OH | 001F | MCARTHUR | OH |
| 2013-06-19 | 740-486-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MCARTHUR | OH |
| 2017-06-13 | 740-486-2XXX | 2000–2999 | Assigned | ONVOY, LLC - OH | 464C | MCARTHUR | OH |
| 2016-03-15 | 740-486-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | MCARTHUR | OH |
| 2020-03-23 | 740-486-4XXX | 4000–4999 | Assigned | ONVOY, LLC - OH | 464C | MCARTHUR | OH |
| 2020-03-23 | 740-486-5XXX | 5000–5999 | Assigned | ONVOY, LLC - OH | 464C | MCARTHUR | OH |
| 2014-06-06 | 740-486-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | MCARTHUR | OH |
| 2008-07-29 | 740-486-7XXX | 7000–7999 | Assigned | CITYNET OHIO, LLC - OH | 036B | MCARTHUR | OH |
| 2020-06-17 | 740-486-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - OH | 7532 | MCARTHUR | OH |
| 2020-07-15 | 740-486-9XXX | 9000–9999 | Assigned | ONVOY, LLC - OH | 464C | MCARTHUR | 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.