NumberResearchThousands-blocks in 920-484
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 920-484 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 920 blocks
Most active assignees, all time — NPA 920
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-01-21 | 920-484-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | FALL RIVER | WI |
| — | 920-484-1XXX | 1000–1999 | Available | FALL RIVER | WI | ||
| 2025-02-28 | 920-484-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | FALL RIVER | WI |
| — | 920-484-3XXX | 3000–3999 | Reserved | BRIGHTSPEED OF SOUTHERN WISCONSIN, LLC | 0931 | FALL RIVER | WI |
| 2021-05-26 | 920-484-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FALL RIVER | WI |
| 2018-04-04 | 920-484-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FALL RIVER | WI |
| — | 920-484-6XXX | 6000–6999 | Reserved | BRIGHTSPEED OF SOUTHERN WISCONSIN, LLC | 0931 | FALL RIVER | WI |
| 2025-07-31 | 920-484-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FALL RIVER | WI |
| 2008-08-05 | 920-484-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | FALL RIVER | WI |
| 2024-09-20 | 920-484-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | FALL RIVER | 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.