NumberResearchThousands-blocks in 903-912
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 903-912 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 903 blocks
Most active assignees, all time — NPA 903
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 903-912-0XXX | 0000–0999 | Reserved | ONVOY, LLC - TX | 903C | JEWETT | TX |
| — | 903-912-1XXX | 1000–1999 | Reserved | ONVOY, LLC - TX | 903C | JEWETT | TX |
| — | 903-912-2XXX | 2000–2999 | Available | JEWETT | TX | ||
| 2024-02-21 | 903-912-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | JEWETT | TX |
| 2024-07-16 | 903-912-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | JEWETT | TX |
| — | 903-912-5XXX | 5000–5999 | Available | JEWETT | TX | ||
| — | 903-912-6XXX | 6000–6999 | Available | JEWETT | TX | ||
| — | 903-912-7XXX | 7000–7999 | Reserved | ONVOY, LLC - TX | 903C | JEWETT | TX |
| 2023-07-28 | 903-912-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | JEWETT | TX |
| — | 903-912-9XXX | 9000–9999 | Reserved | ONVOY, LLC - TX | 903C | JEWETT | TX |
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.