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 |
|---|---|---|---|---|---|---|---|
| 2017-06-06 | 605-824-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | ABERDEEN | SD |
| 2017-05-31 | 605-862-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BIGSTONECY | SD |
| 2017-05-25 | 605-250-0XXX | 0000–0999 | Assigned | ONVOY, LLC - SD | 162G | SIOUX FLS | SD |
| 2017-05-25 | 605-250-1XXX | 1000–1999 | Assigned | ONVOY, LLC - SD | 162G | SIOUX FLS | SD |
| 2017-05-25 | 605-250-2XXX | 2000–2999 | Assigned | ONVOY, LLC - SD | 162G | SIOUX FLS | SD |
| 2017-05-25 | 605-250-3XXX | 3000–3999 | Assigned | ONVOY, LLC - SD | 162G | SIOUX FLS | SD |
| 2017-05-25 | 605-250-4XXX | 4000–4999 | Assigned | ONVOY, LLC - SD | 162G | SIOUX FLS | SD |
| 2017-05-25 | 605-250-5XXX | 5000–5999 | Assigned | ONVOY, LLC - SD | 162G | SIOUX FLS | SD |
| 2017-05-25 | 605-250-6XXX | 6000–6999 | Assigned | ONVOY, LLC - SD | 162G | SIOUX FLS | SD |
| 2017-05-25 | 605-250-7XXX | 7000–7999 | Assigned | ONVOY, LLC - SD | 162G | SIOUX FLS | SD |
| 2017-05-25 | 605-250-8XXX | 8000–8999 | Assigned | ONVOY, LLC - SD | 162G | SIOUX FLS | SD |
| 2017-05-25 | 605-250-9XXX | 9000–9999 | Assigned | ONVOY, LLC - SD | 162G | SIOUX FLS | SD |
| 2017-05-24 | 605-960-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HURON | SD |
| 2017-05-12 | 605-468-8XXX | 8000–8999 | Assigned | NORTHERN VALLEY COMMUNICATIONS, LLC | 6125 | REDFIELD | SD |
| 2017-05-09 | 605-204-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | MILLER | SD |
| 2017-05-09 | 605-356-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ELK POINT | SD |
| 2017-05-09 | 605-368-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HARISBGTEA | SD |
| 2017-05-09 | 605-423-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | STURGIS | SD |
| 2017-05-09 | 605-546-4XXX | 4000–4999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | IROQUOIS | SD |
| 2017-05-09 | 605-741-2XXX | 2000–2999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | VERMILLION | SD |
| 2017-05-09 | 605-857-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | YANKTON | SD |
| 2017-05-09 | 605-865-9XXX | 9000–9999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | TIMBERLAKE | SD |
| 2017-05-09 | 605-954-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WATERTOWN | SD |
| 2017-05-09 | 605-997-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | FLANDREAU | SD |
| 2017-05-05 | 605-269-3XXX | 3000–3999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SPEARFISH | SD |
| 2017-05-05 | 605-302-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | REDFIELD | SD |
| 2017-05-05 | 605-599-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CAVOUR | SD |
| 2017-05-05 | 605-626-9XXX | 9000–9999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ABERDEEN | SD |
| 2017-05-05 | 605-699-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BELLEFORCH | SD |
| 2017-05-05 | 605-730-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CHAMBERLAN | SD |
| 2017-05-05 | 605-776-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PIERRE | SD |
| 2017-05-05 | 605-836-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CANTON | SD |
| 2017-05-05 | 605-854-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DE SMET | SD |
| 2017-05-05 | 605-858-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | RAPID CITY | SD |
| 2017-05-03 | 605-291-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MADISON | SD |
| 2017-05-03 | 605-309-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | NOVALENTIN | SD |
| 2017-05-03 | 605-597-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MITCHELL | SD |
| 2017-05-03 | 605-853-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MILLER | SD |
| 2017-05-03 | 605-949-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MILBANK | SD |
| 2017-04-21 | 605-777-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | HARISBGTEA | SD |
| 2017-04-19 | 605-349-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | WESTJASPER | SD |
| 2017-04-13 | 605-423-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | STURGIS | SD |
| 2017-04-13 | 605-423-2XXX | 2000–2999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | STURGIS | SD |
| 2017-03-30 | 605-740-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SIOUX FLS | SD |
| 2017-03-29 | 605-305-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SIOUX FLS | SD |
| 2017-03-24 | 605-404-0XXX | 0000–0999 | Assigned | QWEST CORPORATION | 9631 | SIOUX FLS | SD |
| 2017-03-24 | 605-404-1XXX | 1000–1999 | Assigned | QWEST CORPORATION | 9631 | SIOUX FLS | SD |
| 2017-03-24 | 605-404-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9631 | SIOUX FLS | SD |
| 2017-03-24 | 605-404-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9631 | SIOUX FLS | SD |
| 2017-03-24 | 605-404-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9631 | 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.