NumberResearchThousands-blocks in 740-489
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 740-489 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
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 740-489-0XXX | 0000–0999 | Reserved | WINDSTREAM WESTERN RESERVE, INC. | 0666 | OLDWSHNGTN | OH |
| — | 740-489-1XXX | 1000–1999 | Reserved | WINDSTREAM WESTERN RESERVE, INC. | 0666 | OLDWSHNGTN | OH |
| — | 740-489-2XXX | 2000–2999 | Reserved | WINDSTREAM WESTERN RESERVE, INC. | 0666 | OLDWSHNGTN | OH |
| — | 740-489-3XXX | 3000–3999 | Reserved | WINDSTREAM WESTERN RESERVE, INC. | 0666 | OLDWSHNGTN | OH |
| — | 740-489-4XXX | 4000–4999 | Reserved | WINDSTREAM WESTERN RESERVE, INC. | 0666 | OLDWSHNGTN | OH |
| — | 740-489-5XXX | 5000–5999 | Reserved | WINDSTREAM WESTERN RESERVE, INC. | 0666 | OLDWSHNGTN | OH |
| 2018-04-20 | 740-489-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - OH | 001F | OLDWSHNGTN | OH |
| 2015-07-31 | 740-489-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | OLDWSHNGTN | OH |
| 2019-09-06 | 740-489-8XXX | 8000–8999 | Assigned | ONVOY, LLC - OH | 464C | OLDWSHNGTN | OH |
| — | 740-489-9XXX | 9000–9999 | Reserved | WINDSTREAM WESTERN RESERVE, INC. | 0666 | OLDWSHNGTN | 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.