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 |
|---|---|---|---|---|---|---|---|
| 2024-07-25 | 350-203-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | DOS PALOS | CA |
| 2024-07-23 | 350-227-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TRACY | CA |
| 2024-07-22 | 350-219-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2024-07-22 | 350-219-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2024-07-22 | 350-355-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2024-07-22 | 350-355-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2024-07-22 | 350-355-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2024-07-10 | 350-226-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MODESTO | CA |
| 2024-07-10 | 350-226-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MODESTO | CA |
| 2024-07-10 | 350-226-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MODESTO | CA |
| 2024-07-10 | 350-226-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MODESTO | CA |
| 2024-07-10 | 350-226-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MODESTO | CA |
| 2024-07-05 | 350-225-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | LOS BANOS | CA |
| 2024-07-05 | 350-225-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | LOS BANOS | CA |
| 2024-07-05 | 350-226-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2024-07-05 | 350-227-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | TRACY | CA |
| 2024-07-03 | 350-209-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | VALLEY SPG | CA |
| 2024-07-03 | 350-221-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | LODI | CA |
| 2024-07-03 | 350-530-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | ESCALON | CA |
| 2024-07-03 | 350-630-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | RIVERBANK | CA |
| 2024-07-03 | 350-777-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | GALT | CA |
| 2024-07-03 | 350-960-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | WTFR MAIN | CA |
| 2024-06-27 | 350-219-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2024-06-27 | 350-219-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2024-06-21 | 350-223-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | MERCED | CA |
| 2024-06-21 | 350-224-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2024-06-21 | 350-224-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2024-06-21 | 350-750-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | SNRA MAIN | CA |
| 2024-06-18 | 350-219-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | STOCKTON | CA |
| 2024-06-18 | 350-221-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LODI | CA |
| 2024-06-18 | 350-350-8XXX | 8000–8999 | Assigned | NUSO, LLC | 732J | STOCKTON | CA |
| 2024-06-18 | 350-355-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | STOCKTON | CA |
| 2024-06-17 | 350-205-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PLANADA | CA |
| 2024-06-13 | 350-203-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | DOS PALOS | CA |
| 2024-06-12 | 350-221-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LODI | CA |
| 2024-06-05 | 350-219-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | STOCKTON | CA |
| 2024-05-29 | 350-220-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2024-05-29 | 350-220-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2024-05-29 | 350-220-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2024-05-29 | 350-220-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2024-05-29 | 350-220-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2024-05-29 | 350-224-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ATWATER | CA |
| 2024-05-22 | 350-222-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | HUGHSON | CA |
| 2024-05-14 | 350-219-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | STOCKTON | CA |
| 2024-05-14 | 350-221-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | LODI | CA |
| 2024-05-14 | 350-223-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | MERCED | CA |
| 2024-05-14 | 350-503-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | MERCED | CA |
| 2024-05-14 | 350-503-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | MERCED | CA |
| 2024-05-14 | 350-600-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | OAKDALE | CA |
| 2024-05-14 | 350-600-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | OAKDALE | 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.