NumberResearchThousands-blocks in 605-534
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 605-534 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 605 blocks
Most active assignees, all time — NPA 605
New assignments by month
Sep 2026
Aug 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2021-03-29 | 605-534-0XXX | 0000–0999 | Assigned | AIRUS, INC. - SD | 580H | FLANDREAU | SD |
| 2012-11-21 | 605-534-1XXX | 1000–1999 | Assigned | ONVOY, LLC - SD | 162G | FLANDREAU | SD |
| 2020-07-28 | 605-534-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | FLANDREAU | SD |
| — | 605-534-3XXX | 3000–3999 | Reserved | QWEST CORPORATION | 9631 | FLANDREAU | SD |
| 2016-09-08 | 605-534-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FLANDREAU | SD |
| 2020-08-21 | 605-534-5XXX | 5000–5999 | Assigned | VALLEY COMMUNICATIONS, INC. D/B/A VALLEY FIBERCOM | 363J | FLANDREAU | SD |
| 2010-07-13 | 605-534-6XXX | 6000–6999 | Assigned | MCC TELEPHONY OF THE MID-WEST, LLC - SD | 920F | FLANDREAU | SD |
| 2009-04-28 | 605-534-7XXX | 7000–7999 | Assigned | ONVOY, LLC - SD | 162G | FLANDREAU | SD |
| 2011-09-02 | 605-534-8XXX | 8000–8999 | Assigned | ONVOY, LLC - SD | 162G | FLANDREAU | SD |
| — | 605-534-9XXX | 9000–9999 | Reserved | QWEST CORPORATION | 9631 | FLANDREAU | SD |
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.