NumberResearchThousands-blocks in 712-591
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/21/2026
The ten 1,000-number thousand-blocks inside prefix 712-591 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 712 blocks
Most active assignees, all time — NPA 712
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-08-06 | 712-591-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HAMBURG | IA |
| 2021-03-29 | 712-591-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | HAMBURG | IA |
| 2019-09-18 | 712-591-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9631 | HAMBURG | IA |
| 2025-03-25 | 712-591-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | HAMBURG | IA |
| — | 712-591-4XXX | 4000–4999 | Available | HAMBURG | IA | ||
| 2021-04-14 | 712-591-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IA | 221F | HAMBURG | IA |
| — | 712-591-6XXX | 6000–6999 | Available | HAMBURG | IA | ||
| 2022-12-15 | 712-591-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | HAMBURG | IA |
| 2021-03-29 | 712-591-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | HAMBURG | IA |
| 2024-10-15 | 712-591-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | 6570 | HAMBURG | IA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.