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 |
|---|---|---|---|---|---|---|---|
| 2006-03-23 | 605-622-6XXX | 6000–6999 | Assigned | NORTHERN VALLEY COMMUNICATIONS, LLC | 6125 | ABERDEEN | SD |
| 2006-03-23 | 605-622-8XXX | 8000–8999 | Assigned | NORTHERN VALLEY COMMUNICATIONS, LLC | 6125 | ABERDEEN | SD |
| 2006-03-23 | 605-622-9XXX | 9000–9999 | Assigned | NORTHERN VALLEY COMMUNICATIONS, LLC | 6125 | ABERDEEN | SD |
| 2006-03-02 | 605-323-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2006-03-02 | 605-415-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | RAPID CITY | SD |
| 2006-02-07 | 605-323-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SIOUX FLS | SD |
| 2006-01-19 | 605-415-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | RAPID CITY | SD |
| 2006-01-19 | 605-759-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2006-01-19 | 605-759-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2006-01-19 | 605-759-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2006-01-19 | 605-759-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2006-01-19 | 605-759-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2006-01-17 | 605-206-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | STURGIS | SD |
| 2006-01-13 | 605-415-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | RAPID CITY | SD |
| 2005-12-05 | 605-759-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2005-11-21 | 605-521-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | SIOUX FLS | SD |
| 2005-10-31 | 605-505-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PARKSTON | SD |
| 2005-10-06 | 605-521-4XXX | 4000–4999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | SIOUX FLS | SD |
| 2005-08-31 | 605-252-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ABERDEEN | SD |
| 2005-08-15 | 605-759-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2005-08-01 | 605-254-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2005-08-01 | 605-254-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2005-08-01 | 605-393-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | RAPID CITY | SD |
| 2005-07-01 | 605-254-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2005-07-01 | 605-393-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | RAPID CITY | SD |
| 2005-06-13 | 605-579-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOWARD | SD |
| 2005-04-25 | 605-478-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HIGHMORE | SD |
| 2005-04-21 | 605-828-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MISSION | SD |
| 2005-04-08 | 605-323-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9631 | SIOUX FLS | SD |
| 2005-04-06 | 605-521-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | SIOUX FLS | SD |
| 2005-04-05 | 605-254-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2005-02-25 | 605-254-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2005-02-23 | 605-550-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | MITCHELL | SD |
| 2005-02-01 | 605-521-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | SIOUX FLS | SD |
| 2005-01-21 | 605-254-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2005-01-05 | 605-301-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | PIERRE | SD |
| 2005-01-05 | 605-644-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | SPEARFISH | SD |
| 2004-12-15 | 605-254-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | SIOUX FLS | SD |
| 2004-12-15 | 605-521-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | SIOUX FLS | SD |
| 2004-12-10 | 605-987-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CANTON | SD |
| 2004-10-14 | 605-240-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SALEM | SD |
| 2004-07-15 | 605-553-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SIOUX FLS | SD |
| 2004-06-07 | 605-277-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | ABERDEEN | SD |
| 2004-05-10 | 605-884-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SD | 5180 | WATERTOWN | SD |
| 2004-04-01 | 605-521-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | 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.