NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-08-14 | 605-603-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | RAPID CITY | SD |
| 2026-08-14 | 605-790-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SIOUX FLS | SD |
| 2026-07-09 | 605-790-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SIOUX FLS | SD |
| 2026-06-11 | 605-713-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | ABERDEEN | SD |
| 2026-05-28 | 605-790-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SIOUX FLS | SD |
| 2026-05-08 | 605-603-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | RAPID CITY | SD |
| 2026-04-06 | 605-476-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SIOUX FLS | SD |
| 2026-04-06 | 605-906-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | 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 |
| 2022-10-05 | 605-502-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | PIERRE | SD |
| 2022-09-01 | 605-937-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SIOUX FLS | SD |
| 2022-08-24 | 605-982-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | ABERDEEN | SD |
| 2022-08-24 | 605-982-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | ABERDEEN | SD |
| 2022-08-02 | 605-416-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | RAPID CITY | SD |
| 2022-08-02 | 605-416-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | RAPID CITY | SD |
| 2022-08-02 | 605-416-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | RAPID CITY | SD |
| 2022-07-25 | 605-910-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SIOUX FLS | SD |
| 2022-07-25 | 605-910-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SIOUX FLS | SD |
| 2022-07-25 | 605-910-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SIOUX FLS | SD |
| 2022-07-25 | 605-910-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SIOUX FLS | SD |
| 2022-07-25 | 605-910-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SIOUX FLS | SD |
| 2022-07-21 | 605-902-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | WATERTOWN | SD |
| 2022-06-15 | 605-657-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | WATERTOWN | SD |
| 2022-02-08 | 605-549-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SPEARFISH | SD |
| 2022-02-08 | 605-549-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SPEARFISH | SD |
| 2022-01-26 | 605-808-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | REDFIELD | SD |
| 2021-12-13 | 605-656-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | MITCHELL | SD |
| 2021-11-15 | 605-663-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | HURON | SD |
| 2021-11-12 | 605-630-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | MITCHELL | SD |
| 2021-11-01 | 605-443-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SPEARFISH | SD |
| 2021-11-01 | 605-443-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SPEARFISH | SD |
| 2021-06-30 | 605-991-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | MILBANK | SD |
| 2020-12-14 | 605-550-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | MITCHELL | SD |
| 2020-10-22 | 605-549-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SPEARFISH | SD |
| 2020-04-10 | 605-776-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | PIERRE | SD |
| 2020-03-10 | 605-468-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | REDFIELD | SD |
| 2019-06-13 | 605-800-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SIOUX FLS | SD |
| 2019-05-22 | 605-954-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | WATERTOWN | SD |
| 2019-05-01 | 605-305-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SIOUX FLS | SD |
| 2019-04-12 | 605-954-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | WATERTOWN | SD |
| 2018-07-20 | 605-659-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | VERMILLION | SD |
| 2018-06-29 | 605-453-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | MILLER | SD |
| 2018-06-04 | 605-291-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | MADISON | SD |
| 2018-05-14 | 605-309-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | NOVALENTIN | SD |
| 2018-05-11 | 605-453-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | MILLER | SD |
| 2018-04-19 | 605-524-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | MCINTOSH | SD |
| 2018-04-19 | 605-524-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | MCINTOSH | SD |
| 2017-09-21 | 605-301-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | PIERRE | 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.