NumberResearchThousands-blocks in 608-730
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 608-730 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 608 blocks
Most active assignees, all time — NPA 608
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 |
|---|---|---|---|---|---|---|---|
| 2021-10-26 | 608-730-0XXX | 0000–0999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | STOUGHTON | WI |
| 2022-07-22 | 608-730-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | STOUGHTON | WI |
| 2021-06-22 | 608-730-2XXX | 2000–2999 | Assigned | ONVOY, LLC - WI | 225C | STOUGHTON | WI |
| 2021-06-22 | 608-730-3XXX | 3000–3999 | Assigned | ONVOY, LLC - WI | 225C | STOUGHTON | WI |
| 2024-09-20 | 608-730-4XXX | 4000–4999 | Assigned | NUSO, LLC | 732J | STOUGHTON | WI |
| 2022-09-09 | 608-730-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | STOUGHTON | WI |
| 2024-02-20 | 608-730-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | STOUGHTON | WI |
| 2021-05-26 | 608-730-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STOUGHTON | WI |
| 2024-02-07 | 608-730-8XXX | 8000–8999 | Assigned | ONVOY, LLC - WI | 225C | STOUGHTON | WI |
| 2021-05-14 | 608-730-9XXX | 9000–9999 | Assigned | HD CARRIER LLC | 321J | STOUGHTON | WI |
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.