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 |
|---|---|---|---|---|---|---|---|
| 2023-02-15 | 605-601-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | SIOUX FLS | SD |
| 2023-02-15 | 605-601-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | SIOUX FLS | SD |
| 2023-02-13 | 605-513-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | RAPID CITY | SD |
| 2023-01-30 | 605-512-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | NEWUNDERWD | SD |
| 2023-01-24 | 605-419-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SISSETON | SD |
| 2022-12-28 | 605-620-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | LK PRESTON | SD |
| 2022-12-27 | 605-409-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | HARISBGTEA | SD |
| 2022-12-14 | 605-405-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | ARLINGTON | SD |
| 2022-12-14 | 605-409-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | HARISBGTEA | SD |
| 2022-12-14 | 605-531-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | FLANDREAU | SD |
| 2022-12-14 | 605-634-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | CAVOUR | SD |
| 2022-12-14 | 605-636-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | MADISON | SD |
| 2022-12-14 | 605-640-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | MCINTOSH | SD |
| 2022-12-14 | 605-663-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | HURON | SD |
| 2022-12-14 | 605-808-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | REDFIELD | SD |
| 2022-12-14 | 605-815-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | CHAMBERLAN | SD |
| 2022-12-14 | 605-827-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | VOLGA | SD |
| 2022-12-14 | 605-861-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | DE SMET | SD |
| 2022-12-14 | 605-898-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | IROQUOIS | SD |
| 2022-12-14 | 605-952-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | ELK POINT | SD |
| 2022-12-14 | 605-989-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | NOVALENTIN | SD |
| 2022-12-14 | 605-991-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | MILBANK | SD |
| 2022-12-14 | 605-992-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | BIGSTONECY | SD |
| 2022-12-14 | 605-998-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | MILLER | SD |
| 2022-12-05 | 605-405-8XXX | 8000–8999 | Assigned | ONVOY, LLC - SD | 162G | ARLINGTON | SD |
| 2022-11-23 | 605-905-5XXX | 5000–5999 | Assigned | ONVOY, LLC - SD | 162G | STURGIS | SD |
| 2022-11-23 | 605-905-9XXX | 9000–9999 | Assigned | ONVOY, LLC - SD | 162G | STURGIS | SD |
| 2022-11-21 | 605-639-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SPEARFISH | SD |
| 2022-11-16 | 605-531-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | FLANDREAU | SD |
| 2022-11-07 | 605-401-8XXX | 8000–8999 | Assigned | ONVOY, LLC - SD | 162G | SIOUX FLS | SD |
| 2022-10-19 | 605-503-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | RAPID CITY | SD |
| 2022-10-19 | 605-503-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | RAPID CITY | SD |
| 2022-10-19 | 605-503-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | RAPID CITY | SD |
| 2022-10-19 | 605-902-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WATERTOWN | SD |
| 2022-10-19 | 605-902-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WATERTOWN | 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 | 605-812-3XXX | 3000–3999 | Assigned | ONVOY, LLC - SD | 162G | SIOUX FLS | SD |
| 2022-10-14 | 605-812-4XXX | 4000–4999 | Assigned | ONVOY, LLC - SD | 162G | SIOUX FLS | SD |
| 2022-10-14 | 605-812-5XXX | 5000–5999 | Assigned | ONVOY, LLC - SD | 162G | 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 |
| 2022-10-14 | 605-909-8XXX | 8000–8999 | Assigned | ONVOY, LLC - SD | 162G | HILL CITY | SD |
| 2022-10-05 | 605-502-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | PIERRE | SD |
| 2022-09-30 | 605-605-0XXX | 0000–0999 | Assigned | ONVOY, LLC - SD | 162G | ABERDEEN | SD |
| 2022-09-30 | 605-605-1XXX | 1000–1999 | Assigned | ONVOY, LLC - SD | 162G | ABERDEEN | SD |
| 2022-09-30 | 605-605-2XXX | 2000–2999 | Assigned | ONVOY, LLC - SD | 162G | ABERDEEN | 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.