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 |
|---|---|---|---|---|---|---|---|
| 2016-03-01 | 605-592-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | BROOKINGS | SD |
| 2016-03-01 | 605-595-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2016-03-01 | 605-653-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | YANKTON | SD |
| 2016-02-19 | 605-550-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA SD-LLC | 693G | MITCHELL | SD |
| 2016-02-17 | 605-924-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MILBANK | SD |
| 2016-02-12 | 605-622-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA SD-LLC | 693G | ABERDEEN | SD |
| 2016-02-10 | 605-702-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | STURGIS | SD |
| 2016-02-02 | 605-276-5XXX | 5000–5999 | Assigned | MIDCONTINENT COMMUNICATIONS. - SD | 7076 | ROSCOE | SD |
| 2016-02-02 | 605-420-5XXX | 5000–5999 | Assigned | MIDCONTINENT COMMUNICATIONS. - SD | 7076 | ROSLYN | SD |
| 2016-02-02 | 605-643-5XXX | 5000–5999 | Assigned | MIDCONTINENT COMMUNICATIONS. - SD | 7076 | SELBY | SD |
| 2016-01-29 | 605-540-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | NOSIOUX CY | SD |
| 2016-01-29 | 605-824-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | ABERDEEN | SD |
| 2016-01-27 | 605-281-5XXX | 5000–5999 | Assigned | MIDCONTINENT COMMUNICATIONS. - SD | 7076 | BOWDLE | SD |
| 2015-12-24 | 605-824-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ABERDEEN | SD |
| 2015-11-25 | 605-799-0XXX | 0000–0999 | Assigned | ONVOY, LLC - SD | 162G | SIOUX FLS | SD |
| 2015-11-25 | 605-799-2XXX | 2000–2999 | Assigned | ONVOY, LLC - SD | 162G | SIOUX FLS | SD |
| 2015-11-20 | 605-219-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | RAPID CITY | SD |
| 2015-11-20 | 605-799-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2015-11-20 | 605-799-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2015-11-02 | 605-450-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA SD-LLC | 693G | REDFIELD | SD |
| 2015-10-15 | 605-937-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SIOUX FLS | SD |
| 2015-09-23 | 605-219-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | RAPID CITY | SD |
| 2015-09-23 | 605-219-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | RAPID CITY | SD |
| 2015-09-23 | 605-219-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | RAPID CITY | SD |
| 2015-09-23 | 605-219-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | RAPID CITY | SD |
| 2015-09-15 | 605-937-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SIOUX FLS | SD |
| 2015-08-25 | 605-799-1XXX | 1000–1999 | Assigned | AIRUS, INC. - SD | 580H | SIOUX FLS | SD |
| 2015-08-25 | 605-824-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ABERDEEN | SD |
| 2015-08-12 | 605-906-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SIOUX FLS | SD |
| 2015-07-20 | 605-368-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | HARISBGTEA | SD |
| 2015-07-20 | 605-630-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | MITCHELL | SD |
| 2015-07-14 | 605-231-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | SIOUX FLS | SD |
| 2015-06-24 | 605-204-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | MILLER | SD |
| 2015-06-24 | 605-273-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | MCINTOSH | SD |
| 2015-06-22 | 605-679-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2015-06-08 | 605-906-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SIOUX FLS | SD |
| 2015-06-05 | 605-777-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | HARISBGTEA | SD |
| 2015-05-29 | 605-301-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | PIERRE | SD |
| 2015-05-29 | 605-824-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | ABERDEEN | SD |
| 2015-05-15 | 605-679-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2015-05-15 | 605-679-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2015-05-11 | 605-517-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | CUSTER | SD |
| 2015-04-29 | 605-202-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | VERMILLION | SD |
| 2015-04-29 | 605-206-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | STURGIS | SD |
| 2015-04-29 | 605-269-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SPEARFISH | SD |
| 2015-04-29 | 605-299-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | MITCHELL | SD |
| 2015-04-29 | 605-954-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | WATERTOWN | SD |
| 2015-04-15 | 605-681-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SIOUX FLS | SD |
| 2015-04-15 | 605-937-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SIOUX FLS | SD |
| 2015-04-15 | 605-937-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | 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.