NumberResearchThousands-blocks in 734-887
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 734-887 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
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 734-887-0XXX | 0000–0999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | 770E | ANN ARBOR | MI |
| 2014-09-05 | 734-887-1XXX | 1000–1999 | Assigned | ONVOY, LLCV - MI | 543C | ANN ARBOR | MI |
| — | 734-887-2XXX | 2000–2999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | 770E | ANN ARBOR | MI |
| — | 734-887-3XXX | 3000–3999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | 770E | ANN ARBOR | MI |
| — | 734-887-4XXX | 4000–4999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | 770E | ANN ARBOR | MI |
| — | 734-887-5XXX | 5000–5999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | 770E | ANN ARBOR | MI |
| 2013-02-06 | 734-887-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MI | 991E | ANN ARBOR | MI |
| — | 734-887-7XXX | 7000–7999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | 770E | ANN ARBOR | MI |
| — | 734-887-8XXX | 8000–8999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | 770E | ANN ARBOR | MI |
| 2014-09-05 | 734-887-9XXX | 9000–9999 | Assigned | ONVOY, LLCV - MI | 543C | ANN ARBOR | 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.