NumberResearchThousands-blocks in 608-459
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 608-459 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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2009-08-18 | 608-459-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | SPG GREEN | WI |
| 2020-04-07 | 608-459-1XXX | 1000–1999 | Assigned | ONVOY, LLC - WI | 225C | SPG GREEN | WI |
| 2010-02-16 | 608-459-2XXX | 2000–2999 | Assigned | MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS | 698E | SPG GREEN | WI |
| 2010-02-16 | 608-459-3XXX | 3000–3999 | Assigned | MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS | 698E | SPG GREEN | WI |
| 2010-02-16 | 608-459-4XXX | 4000–4999 | Assigned | MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS | 698E | SPG GREEN | WI |
| 2014-08-05 | 608-459-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | SPG GREEN | WI |
| 2014-08-13 | 608-459-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | SPG GREEN | WI |
| 2014-11-25 | 608-459-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SPG GREEN | WI |
| 2018-10-05 | 608-459-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | SPG GREEN | WI |
| 2016-01-20 | 608-459-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC WI | 7216 | SPG GREEN | 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.