NumberResearchThousands-blocks in 270-258
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 270-258 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 270 blocks
Most active assignees, all time — NPA 270
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 |
|---|---|---|---|---|---|---|---|
| — | 270-258-0XXX | 0000–0999 | Reserved | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | MORTONSGAP | KY |
| 2017-03-06 | 270-258-1XXX | 1000–1999 | Assigned | ONVOY, LLC - KY | 896E | MORTONSGAP | KY |
| 2011-11-07 | 270-258-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MORTONSGAP | KY |
| — | 270-258-3XXX | 3000–3999 | Available | MORTONSGAP | KY | ||
| — | 270-258-4XXX | 4000–4999 | Available | MORTONSGAP | KY | ||
| — | 270-258-5XXX | 5000–5999 | Reserved | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | MORTONSGAP | KY |
| 2021-04-15 | 270-258-6XXX | 6000–6999 | Assigned | ONVOY, LLC - KY | 896E | MORTONSGAP | KY |
| — | 270-258-7XXX | 7000–7999 | Available | MORTONSGAP | KY | ||
| 2024-03-27 | 270-258-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | MORTONSGAP | KY |
| — | 270-258-9XXX | 9000–9999 | Available | MORTONSGAP | KY |
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.