NumberResearchThousands-blocks in 734-280
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 734-280 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
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2018-04-11 | 734-280-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | WYANDOTTE | MI |
| 2020-10-16 | 734-280-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | WYANDOTTE | MI |
| 2020-12-08 | 734-280-2XXX | 2000–2999 | Assigned | ONVOY, LLCV - MI | 543C | WYANDOTTE | MI |
| 2019-09-27 | 734-280-3XXX | 3000–3999 | Assigned | PEERLESS NETWORK OF MICHIGAN, LLC - MI | 933G | WYANDOTTE | MI |
| 2020-02-12 | 734-280-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WYANDOTTE | MI |
| 2020-02-12 | 734-280-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WYANDOTTE | MI |
| 2020-12-08 | 734-280-6XXX | 6000–6999 | Assigned | ONVOY, LLCV - MI | 543C | WYANDOTTE | MI |
| 2021-06-28 | 734-280-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | WYANDOTTE | MI |
| 2019-01-08 | 734-280-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | WYANDOTTE | MI |
| 2022-03-07 | 734-280-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | WYANDOTTE | 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.