NumberResearchThousands-blocks in 734-471
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 734-471 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 734 blocks
Most active assignees, all time — NPA 734
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-03-10 | 734-471-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ROCKWOOD | MI |
| — | 734-471-1XXX | 1000–1999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | ROCKWOOD | MI |
| 2020-12-31 | 734-471-2XXX | 2000–2999 | Assigned | ONVOY, LLCV - MI | 543C | ROCKWOOD | MI |
| 2020-12-31 | 734-471-3XXX | 3000–3999 | Assigned | ONVOY, LLCV - MI | 543C | ROCKWOOD | MI |
| — | 734-471-4XXX | 4000–4999 | Available | ROCKWOOD | MI | ||
| 2012-06-25 | 734-471-5XXX | 5000–5999 | Assigned | ONVOY, LLCV - MI | 543C | ROCKWOOD | MI |
| 2014-04-07 | 734-471-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF MICHIGAN, LLC - MI | 933G | ROCKWOOD | MI |
| 2022-03-25 | 734-471-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | ROCKWOOD | MI |
| 2021-05-18 | 734-471-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ROCKWOOD | MI |
| 2026-05-26 | 734-471-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROCKWOOD | MI |
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.