NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/24/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 605
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-11-21 | 605-203-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LK PRESTON | SD |
| 2024-11-21 | 605-316-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | IROQUOIS | SD |
| 2024-11-21 | 605-318-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PIERRE | SD |
| 2024-11-21 | 605-450-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | REDFIELD | SD |
| 2024-11-21 | 605-514-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HURON | SD |
| 2024-11-21 | 605-522-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | YANKTON | SD |
| 2024-11-21 | 605-531-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FLANDREAU | SD |
| 2024-11-21 | 605-597-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MITCHELL | SD |
| 2024-11-21 | 605-621-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MADISON | SD |
| 2024-11-21 | 605-634-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CAVOUR | SD |
| 2024-11-21 | 605-640-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MCINTOSH | SD |
| 2024-11-21 | 605-657-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WATERTOWN | SD |
| 2024-11-21 | 605-741-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | VERMILLION | SD |
| 2024-11-21 | 605-827-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | VOLGA | SD |
| 2024-11-21 | 605-952-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ELK POINT | SD |
| 2024-11-21 | 605-991-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MILBANK | SD |
| 2024-11-21 | 605-998-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MILLER | SD |
| 2024-04-01 | 605-650-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2023-08-21 | 605-518-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2023-08-21 | 605-518-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2023-08-21 | 605-518-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2023-08-21 | 605-518-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2023-08-21 | 605-518-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2022-10-14 | 605-812-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2022-10-14 | 605-812-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2022-10-14 | 605-812-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2022-10-14 | 605-812-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2022-10-14 | 605-812-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2022-10-14 | 605-812-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2022-10-14 | 605-900-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2021-12-30 | 605-705-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2021-12-30 | 605-705-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2021-12-30 | 605-705-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2021-10-25 | 605-972-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WESTJASPER | SD |
| 2021-10-25 | 605-972-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WESTJASPER | SD |
| 2021-10-06 | 605-405-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ARLINGTON | SD |
| 2021-10-06 | 605-418-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ABERDEEN | SD |
| 2021-10-06 | 605-606-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2021-10-06 | 605-606-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2021-10-06 | 605-606-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2021-10-06 | 605-616-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CANTON | SD |
| 2021-10-06 | 605-709-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HARISBGTEA | SD |
| 2021-10-06 | 605-709-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HARISBGTEA | SD |
| 2021-10-06 | 605-989-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NOVALENTIN | SD |
| 2021-06-23 | 605-616-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CANTON | SD |
| 2021-06-22 | 605-405-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ARLINGTON | SD |
| 2021-06-22 | 605-409-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HARISBGTEA | SD |
| 2021-06-22 | 605-418-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ABERDEEN | SD |
| 2021-06-22 | 605-674-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BIGSTONECY | SD |
| 2021-06-22 | 605-815-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHAMBERLAN | SD |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.