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 |
|---|---|---|---|---|---|---|---|
| 2021-12-13 | 605-656-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | MITCHELL | SD |
| 2021-12-08 | 605-604-0XXX | 0000–0999 | Assigned | MIDCO VOICE, LLC | 858J | BRANDON | SD |
| 2021-12-06 | 605-405-1XXX | 1000–1999 | Assigned | AIRUS, INC. - SD | 580H | ARLINGTON | SD |
| 2021-11-22 | 605-401-5XXX | 5000–5999 | Assigned | TELNYX LLC | 073H | SIOUX FLS | SD |
| 2021-11-19 | 605-403-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2021-11-19 | 605-403-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2021-11-17 | 605-591-1XXX | 1000–1999 | Assigned | ONVOY, LLC - SD | 162G | SPEARFISH | 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 |
| 2021-11-04 | 605-910-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA SD-LLC | 693G | SIOUX FLS | 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 |
| 2021-10-25 | 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 |
| 2021-10-13 | 605-510-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RAPID CITY | SD |
| 2021-10-13 | 605-510-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RAPID CITY | SD |
| 2021-10-13 | 605-510-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RAPID CITY | SD |
| 2021-10-13 | 605-510-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RAPID CITY | SD |
| 2021-10-13 | 605-510-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RAPID CITY | SD |
| 2021-10-13 | 605-510-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RAPID CITY | SD |
| 2021-10-11 | 605-416-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RAPID CITY | SD |
| 2021-10-11 | 605-774-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SIOUX FLS | SD |
| 2021-10-11 | 605-774-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SIOUX FLS | SD |
| 2021-10-11 | 605-774-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SIOUX FLS | SD |
| 2021-10-11 | 605-774-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SIOUX FLS | SD |
| 2021-10-11 | 605-998-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | MILLER | SD |
| 2021-10-07 | 605-502-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | PIERRE | 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 |
| 2021-10-04 | 605-405-2XXX | 2000–2999 | Assigned | ONVOY, LLC - SD | 162G | ARLINGTON | SD |
| 2021-10-04 | 605-989-5XXX | 5000–5999 | Assigned | ONVOY, LLC - SD | 162G | NOVALENTIN | SD |
| 2021-09-24 | 605-805-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | PIERRE | SD |
| 2021-09-15 | 605-416-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | RAPID CITY | SD |
| 2021-09-15 | 605-416-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | RAPID CITY | SD |
| 2021-09-15 | 605-416-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | RAPID CITY | SD |
| 2021-09-15 | 605-416-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | RAPID CITY | SD |
| 2021-09-13 | 605-556-6XXX | 6000–6999 | Assigned | ONVOY, LLC - SD | 162G | MADISON | SD |
| 2021-09-13 | 605-657-4XXX | 4000–4999 | Assigned | ONVOY, LLC - SD | 162G | WATERTOWN | SD |
| 2021-08-27 | 605-801-1XXX | 1000–1999 | Assigned | ONVOY, LLC - SD | 162G | BELLEFORCH | SD |
| 2021-08-27 | 605-801-2XXX | 2000–2999 | Assigned | ONVOY, LLC - SD | 162G | BELLEFORCH | SD |
| 2021-08-27 | 605-808-0XXX | 0000–0999 | Assigned | ONVOY, LLC - SD | 162G | REDFIELD | SD |
| 2021-08-27 | 605-998-7XXX | 7000–7999 | Assigned | ONVOY, LLC - SD | 162G | MILLER | SD |
| 2021-08-18 | 605-606-2XXX | 2000–2999 | Assigned | VONAGE AMERICA LLC | 197D | 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.