NumberResearchThousands-blocks in 740-274
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 740-274 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 |
|---|---|---|---|---|---|---|---|
| — | 740-274-0XXX | 0000–0999 | Reserved | AERIAL COMMUNICATIONS, INC. | 6701 | ATHENS | OH |
| 2005-07-07 | 740-274-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | ATHENS | OH |
| 2007-01-05 | 740-274-2XXX | 2000–2999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | ATHENS | OH |
| 2008-10-21 | 740-274-3XXX | 3000–3999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | ATHENS | OH |
| 2006-08-24 | 740-274-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | ATHENS | OH |
| 2009-10-13 | 740-274-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | ATHENS | OH |
| 2009-10-13 | 740-274-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | ATHENS | OH |
| 2008-07-24 | 740-274-7XXX | 7000–7999 | Assigned | CITYNET OHIO, LLC - OH | 036B | ATHENS | OH |
| 2011-07-11 | 740-274-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | ATHENS | OH |
| — | 740-274-9XXX | 9000–9999 | Reserved | AERIAL COMMUNICATIONS, INC. | 6701 | ATHENS | 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.