NumberResearchThousands-blocks in 479-490
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 479-490 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 479 blocks
Most active assignees, all time — NPA 479
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-11-15 | 479-490-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | ALMA | AR |
| 2023-09-25 | 479-490-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | ALMA | AR |
| 2024-02-12 | 479-490-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ALMA | AR |
| 2024-11-08 | 479-490-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AR | 348F | ALMA | AR |
| 2024-12-09 | 479-490-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | ALMA | AR |
| 2024-12-12 | 479-490-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AR | 348F | ALMA | AR |
| 2026-07-30 | 479-490-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AR | 348F | ALMA | AR |
| 2023-04-20 | 479-490-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ALMA | AR |
| 2023-04-20 | 479-490-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ALMA | AR |
| 2022-08-24 | 479-490-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ALMA | AR |
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.