NumberResearchThousands-blocks in 608-409
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 608-409 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
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-06-30 | 608-409-0XXX | 0000–0999 | Assigned | ONVOY, LLC - WI | 225C | ARCADIA | WI |
| 2023-09-28 | 608-409-1XXX | 1000–1999 | Assigned | ONVOY, LLC - WI | 225C | ARCADIA | WI |
| 2025-07-14 | 608-409-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ARCADIA | WI |
| 2017-02-13 | 608-409-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | ARCADIA | WI |
| 2020-12-14 | 608-409-4XXX | 4000–4999 | Assigned | ONVOY, LLC - WI | 225C | ARCADIA | WI |
| 2021-06-02 | 608-409-5XXX | 5000–5999 | Assigned | ONVOY, LLC - WI | 225C | ARCADIA | WI |
| 2020-09-10 | 608-409-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC WI | 7216 | ARCADIA | WI |
| 2014-11-03 | 608-409-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ARCADIA | WI |
| 2021-06-02 | 608-409-8XXX | 8000–8999 | Assigned | ONVOY, LLC - WI | 225C | ARCADIA | WI |
| 2023-09-28 | 608-409-9XXX | 9000–9999 | Assigned | ONVOY, LLC - WI | 225C | ARCADIA | WI |
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.