NumberResearchThousands-blocks in 320-348
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 320-348 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 320 blocks
Most active assignees, all time — NPA 320
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 |
|---|---|---|---|---|---|---|---|
| 2008-11-04 | 320-348-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MN | 980E | COLDSPRING | MN |
| 2012-09-06 | 320-348-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MN | 184D | COLDSPRING | MN |
| 2008-01-16 | 320-348-2XXX | 2000–2999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7770 | COLDSPRING | MN |
| 2012-11-19 | 320-348-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MN | 184D | COLDSPRING | MN |
| 2013-05-20 | 320-348-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MN | 980E | COLDSPRING | MN |
| — | 320-348-5XXX | 5000–5999 | Available | COLDSPRING | MN | ||
| 2020-10-06 | 320-348-6XXX | 6000–6999 | Assigned | FRACTEL, LLC | 965H | COLDSPRING | MN |
| 2007-03-16 | 320-348-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MN | 184D | COLDSPRING | MN |
| 2011-11-08 | 320-348-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MN | 184D | COLDSPRING | MN |
| — | 320-348-9XXX | 9000–9999 | Available | COLDSPRING | MN |
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.