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 |
|---|---|---|---|---|---|---|---|
| 2021-03-17 | 605-608-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RAPID CITY | SD |
| 2021-03-17 | 605-608-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RAPID CITY | SD |
| 2021-03-17 | 605-937-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SIOUX FLS | SD |
| 2021-03-17 | 605-937-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SIOUX FLS | SD |
| 2021-03-16 | 605-403-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2021-03-16 | 605-403-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2021-03-16 | 605-403-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2021-03-16 | 605-403-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2021-03-03 | 605-997-0XXX | 0000–0999 | Assigned | ONVOY, LLC - SD | 162G | FLANDREAU | SD |
| 2021-03-03 | 605-997-1XXX | 1000–1999 | Assigned | ONVOY, LLC - SD | 162G | FLANDREAU | SD |
| 2021-03-02 | 605-401-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SIOUX FLS | SD |
| 2021-02-28 | 605-633-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | FLANDREAU | SD |
| 2021-02-23 | 605-291-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | MADISON | SD |
| 2021-02-16 | 605-480-6XXX | 6000–6999 | Assigned | ONVOY, LLC - SD | 162G | MADISON | SD |
| 2021-02-16 | 605-480-9XXX | 9000–9999 | Assigned | ONVOY, LLC - SD | 162G | MADISON | SD |
| 2021-02-14 | 605-316-7XXX | 7000–7999 | Assigned | ONVOY, LLC - SD | 162G | IROQUOIS | SD |
| 2021-02-14 | 605-316-8XXX | 8000–8999 | Assigned | ONVOY, LLC - SD | 162G | IROQUOIS | SD |
| 2021-02-14 | 605-499-2XXX | 2000–2999 | Assigned | ONVOY, LLC - SD | 162G | STURGIS | SD |
| 2021-02-14 | 605-525-8XXX | 8000–8999 | Assigned | ONVOY, LLC - SD | 162G | LK PRESTON | SD |
| 2021-02-14 | 605-525-9XXX | 9000–9999 | Assigned | ONVOY, LLC - SD | 162G | LK PRESTON | SD |
| 2021-02-14 | 605-566-3XXX | 3000–3999 | Assigned | ONVOY, LLC - SD | 162G | SPEARFISH | SD |
| 2021-02-14 | 605-566-4XXX | 4000–4999 | Assigned | ONVOY, LLC - SD | 162G | SPEARFISH | SD |
| 2021-02-14 | 605-608-3XXX | 3000–3999 | Assigned | ONVOY, LLC - SD | 162G | RAPID CITY | SD |
| 2021-02-14 | 605-608-4XXX | 4000–4999 | Assigned | ONVOY, LLC - SD | 162G | RAPID CITY | SD |
| 2021-02-14 | 605-608-5XXX | 5000–5999 | Assigned | ONVOY, LLC - SD | 162G | RAPID CITY | SD |
| 2021-02-14 | 605-702-0XXX | 0000–0999 | Assigned | ONVOY, LLC - SD | 162G | STURGIS | SD |
| 2021-02-14 | 605-857-4XXX | 4000–4999 | Assigned | ONVOY, LLC - SD | 162G | YANKTON | SD |
| 2021-02-14 | 605-857-6XXX | 6000–6999 | Assigned | ONVOY, LLC - SD | 162G | YANKTON | SD |
| 2021-02-14 | 605-861-1XXX | 1000–1999 | Assigned | ONVOY, LLC - SD | 162G | DE SMET | SD |
| 2021-02-14 | 605-861-2XXX | 2000–2999 | Assigned | ONVOY, LLC - SD | 162G | DE SMET | SD |
| 2021-02-14 | 605-933-4XXX | 4000–4999 | Assigned | ONVOY, LLC - SD | 162G | MITCHELL | SD |
| 2021-02-14 | 605-933-5XXX | 5000–5999 | Assigned | ONVOY, LLC - SD | 162G | MITCHELL | SD |
| 2021-02-14 | 605-952-7XXX | 7000–7999 | Assigned | ONVOY, LLC - SD | 162G | ELK POINT | SD |
| 2021-02-14 | 605-952-8XXX | 8000–8999 | Assigned | ONVOY, LLC - SD | 162G | ELK POINT | SD |
| 2021-02-14 | 605-979-2XXX | 2000–2999 | Assigned | ONVOY, LLC - SD | 162G | NOSIOUX CY | SD |
| 2021-02-14 | 605-979-8XXX | 8000–8999 | Assigned | ONVOY, LLC - SD | 162G | NOSIOUX CY | SD |
| 2021-02-12 | 605-303-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | WATERTOWN | SD |
| 2021-02-12 | 605-318-7XXX | 7000–7999 | Assigned | ONVOY, LLC - SD | 162G | PIERRE | SD |
| 2021-02-12 | 605-318-8XXX | 8000–8999 | Assigned | ONVOY, LLC - SD | 162G | PIERRE | SD |
| 2021-02-12 | 605-318-9XXX | 9000–9999 | Assigned | ONVOY, LLC - SD | 162G | PIERRE | SD |
| 2021-02-12 | 605-736-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | BROOKINGS | SD |
| 2021-02-05 | 605-295-6XXX | 6000–6999 | Assigned | AIRUS, INC. - SD | 580H | PIERRE | SD |
| 2021-02-05 | 605-545-9XXX | 9000–9999 | Assigned | AIRUS, INC. - SD | 580H | RAPID CITY | SD |
| 2021-02-05 | 605-659-2XXX | 2000–2999 | Assigned | AIRUS, INC. - SD | 580H | VERMILLION | SD |
| 2021-02-05 | 605-952-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | ELK POINT | SD |
| 2021-02-05 | 605-971-9XXX | 9000–9999 | Assigned | AIRUS, INC. - SD | 580H | ABERDEEN | SD |
| 2021-01-29 | 605-316-4XXX | 4000–4999 | Assigned | VALLEY COMMUNICATIONS, INC. D/B/A VALLEY FIBERCOM | 363J | IROQUOIS | SD |
| 2021-01-21 | 605-800-4XXX | 4000–4999 | Assigned | ONVOY, LLC - SD | 162G | SIOUX FLS | SD |
| 2021-01-21 | 605-800-5XXX | 5000–5999 | Assigned | ONVOY, LLC - SD | 162G | SIOUX FLS | SD |
| 2021-01-21 | 605-800-6XXX | 6000–6999 | Assigned | ONVOY, LLC - SD | 162G | SIOUX FLS | 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.