NumberResearchRecent thousands-block assignments
5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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, last 30 days — NPA 605
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
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 |
| 2024-11-14 | 605-531-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | FLANDREAU | SD |
| 2024-10-16 | 605-203-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LK PRESTON | SD |
| 2024-10-16 | 605-600-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | RAPID CITY | SD |
| 2024-10-16 | 605-920-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SPEARFISH | SD |
| 2024-10-16 | 605-960-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HURON | SD |
| 2024-10-09 | 605-607-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2024-10-09 | 605-650-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2024-10-09 | 605-650-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2024-10-09 | 605-650-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2024-09-24 | 605-982-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | ABERDEEN | SD |
| 2024-09-16 | 605-656-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | MITCHELL | SD |
| 2024-09-11 | 605-736-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | BROOKINGS | SD |
| 2024-08-29 | 605-590-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | WEBSTER | SD |
| 2024-08-19 | 605-409-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | HARISBGTEA | SD |
| 2024-07-15 | 605-864-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FLANDREAU | SD |
| 2024-06-24 | 605-518-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2024-06-14 | 605-621-7XXX | 7000–7999 | Assigned | ONVOY, LLC - SD | 162G | MADISON | SD |
| 2024-04-10 | 605-231-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2024-04-10 | 605-580-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SPEARFISH | SD |
| 2024-04-10 | 605-960-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HURON | SD |
| 2024-04-01 | 605-650-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SIOUX FLS | SD |
| 2024-03-27 | 605-868-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WATERTOWN | SD |
| 2024-03-18 | 605-656-4XXX | 4000–4999 | Assigned | ONVOY, LLC - SD | 162G | MITCHELL | SD |
| 2024-03-18 | 605-659-9XXX | 9000–9999 | Assigned | ONVOY, LLC - SD | 162G | VERMILLION | SD |
| 2024-03-18 | 605-902-1XXX | 1000–1999 | Assigned | ONVOY, LLC - SD | 162G | WATERTOWN | SD |
| 2024-03-18 | 605-902-2XXX | 2000–2999 | Assigned | ONVOY, LLC - SD | 162G | WATERTOWN | SD |
| 2024-03-18 | 605-975-7XXX | 7000–7999 | Assigned | ONVOY, LLC - SD | 162G | YANKTON | SD |
| 2024-03-05 | 605-933-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MITCHELL | SD |
| 2024-03-04 | 605-503-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | RAPID CITY | SD |
| 2024-02-28 | 605-827-6XXX | 6000–6999 | Assigned | ONVOY, LLC - SD | 162G | VOLGA | SD |
| 2024-02-06 | 605-531-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | FLANDREAU | SD |
| 2024-02-05 | 605-513-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | RAPID CITY | SD |
| 2024-02-05 | 605-513-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | RAPID CITY | SD |
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.