NumberResearchThousands-blocks in 830-228
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 830-228 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 830 blocks
Most active assignees, all time — NPA 830
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-07-27 | 830-228-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | SMITHSOVLY | TX |
| — | 830-228-1XXX | 1000–1999 | Available | SMITHSOVLY | TX | ||
| 2021-04-20 | 830-228-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | SMITHSOVLY | TX |
| — | 830-228-3XXX | 3000–3999 | Reserved | GUADALUPE VALLEY TEL. COOP., INC. | 2083 | SMITHSOVLY | TX |
| — | 830-228-4XXX | 4000–4999 | Reserved | GUADALUPE VALLEY TEL. COOP., INC. | 2083 | SMITHSOVLY | TX |
| — | 830-228-5XXX | 5000–5999 | Reserved | GUADALUPE VALLEY TEL. COOP., INC. | 2083 | SMITHSOVLY | TX |
| 2025-02-10 | 830-228-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SMITHSOVLY | TX |
| 2007-04-02 | 830-228-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SMITHSOVLY | TX |
| 2022-11-22 | 830-228-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | SMITHSOVLY | TX |
| 2025-02-10 | 830-228-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SMITHSOVLY | TX |
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.