NumberResearchThousands-blocks in 712-600
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026
The ten 1,000-number thousand-blocks inside prefix 712-600 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
Aug 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-02-16 | 712-600-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | MISSOURVLY | IA |
| 2016-02-16 | 712-600-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | MISSOURVLY | IA |
| 2016-03-23 | 712-600-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | MISSOURVLY | IA |
| 2016-03-23 | 712-600-3XXX | 3000–3999 | Assigned | ONVOY, LLC - IA | 221F | MISSOURVLY | IA |
| 2012-06-12 | 712-600-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - IA | 985E | MISSOURVLY | IA |
| 2018-06-20 | 712-600-5XXX | 5000–5999 | Assigned | TELNYX LLC | 073H | MISSOURVLY | IA |
| 2006-06-01 | 712-600-6XXX | 6000–6999 | Assigned | LONG LINES METRO, INC. - IA | 828B | MISSOURVLY | IA |
| 2014-12-19 | 712-600-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MISSOURVLY | IA |
| 2019-04-26 | 712-600-8XXX | 8000–8999 | Assigned | AIRUS, INC - IA | 423H | MISSOURVLY | IA |
| 2021-03-29 | 712-600-9XXX | 9000–9999 | Assigned | ONVOY, LLC - IA | 221F | MISSOURVLY | IA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.