NumberResearchRecent thousands-block assignments
7 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 350
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 |
|---|---|---|---|---|---|---|---|
| 2026-06-30 | 350-258-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | ATWATER | CA |
| 2026-06-26 | 350-261-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2026-06-26 | 350-261-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2026-06-26 | 350-261-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2026-06-26 | 350-261-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2026-06-26 | 350-261-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2026-06-26 | 350-261-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2026-06-17 | 350-247-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LODI | CA |
| 2026-06-17 | 350-254-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | TRACY | CA |
| 2026-06-15 | 350-503-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MERCED | CA |
| 2026-06-04 | 350-247-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LODI | CA |
| 2026-06-04 | 350-254-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TRACY | CA |
| 2026-06-01 | 350-227-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | TRACY | CA |
| 2026-06-01 | 350-227-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | TRACY | CA |
| 2026-06-01 | 350-251-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | OAKDALE | CA |
| 2026-06-01 | 350-630-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | RIVERBANK | CA |
| 2026-06-01 | 350-998-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | STOCKTON | CA |
| 2026-05-29 | 350-236-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | JAMESTOWN | CA |
| 2026-05-29 | 350-261-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2026-05-29 | 350-261-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2026-05-21 | 350-223-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | MERCED | CA |
| 2026-05-21 | 350-247-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | LODI | CA |
| 2026-05-21 | 350-252-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | TURLOCK | CA |
| 2026-05-21 | 350-255-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | MANTECA | CA |
| 2026-05-20 | 350-241-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2026-05-20 | 350-242-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2026-05-20 | 350-242-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2026-05-20 | 350-242-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2026-05-20 | 350-880-1XXX | 1000–1999 | Assigned | 8X8, INC. | 193E | MANTECA | CA |
| 2026-05-14 | 350-241-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | STOCKTON | CA |
| 2026-05-13 | 350-240-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | TURLOCK | CA |
| 2026-05-13 | 350-254-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | TRACY | CA |
| 2026-05-11 | 350-239-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LOS BANOS | CA |
| 2026-05-08 | 350-224-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ATWATER | CA |
| 2026-05-06 | 350-239-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | LOS BANOS | CA |
| 2026-05-06 | 350-257-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | RIPON | CA |
| 2026-05-06 | 350-530-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | ESCALON | CA |
| 2026-05-06 | 350-777-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | GALT | CA |
| 2026-04-29 | 350-205-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PLANADA | CA |
| 2026-04-22 | 350-257-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RIPON | CA |
| 2026-04-17 | 350-252-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TURLOCK | CA |
| 2026-04-02 | 350-241-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | STOCKTON | CA |
| 2026-04-02 | 350-241-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | STOCKTON | CA |
| 2026-04-02 | 350-241-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | STOCKTON | CA |
| 2026-04-02 | 350-256-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MODESTO | CA |
| 2026-04-02 | 350-256-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MODESTO | CA |
| 2026-04-02 | 350-256-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MODESTO | CA |
| 2026-03-30 | 350-900-9XXX | 9000–9999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | TRACY | CA |
| 2026-03-18 | 350-240-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | TURLOCK | CA |
| 2026-03-18 | 350-960-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | WTFR MAIN | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.