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 |
|---|---|---|---|---|---|---|---|
| 2024-01-31 | 350-500-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | ATWATER | CA |
| 2024-01-31 | 350-500-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | ATWATER | CA |
| 2024-01-31 | 350-500-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | ATWATER | CA |
| 2024-01-29 | 350-217-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2024-01-29 | 350-217-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2024-01-29 | 350-217-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2024-01-29 | 350-217-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2024-01-29 | 350-217-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2024-01-29 | 350-217-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2024-01-26 | 350-218-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | MANTECA | CA |
| 2024-01-26 | 350-218-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | MANTECA | CA |
| 2024-01-25 | 350-900-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | TRACY | CA |
| 2024-01-25 | 350-900-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | TRACY | CA |
| 2024-01-24 | 350-930-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | TURLOCK | CA |
| 2024-01-24 | 350-930-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | TURLOCK | CA |
| 2024-01-24 | 350-930-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | TURLOCK | CA |
| 2024-01-24 | 350-930-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | TURLOCK | CA |
| 2024-01-24 | 350-930-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | TURLOCK | CA |
| 2024-01-23 | 350-500-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2024-01-23 | 350-500-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2024-01-23 | 350-500-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2024-01-22 | 350-212-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | SUTTER CRK | CA |
| 2024-01-22 | 350-900-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | TRACY | CA |
| 2024-01-22 | 350-930-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | TURLOCK | CA |
| 2024-01-22 | 350-960-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | WTFR MAIN | CA |
| 2024-01-19 | 350-218-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MANTECA | CA |
| 2024-01-18 | 350-213-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | LINDEN | CA |
| 2024-01-17 | 350-503-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MERCED | CA |
| 2024-01-11 | 350-217-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | STOCKTON | CA |
| 2024-01-11 | 350-217-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | STOCKTON | CA |
| 2024-01-11 | 350-355-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | STOCKTON | CA |
| 2024-01-11 | 350-355-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | STOCKTON | CA |
| 2024-01-11 | 350-355-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | STOCKTON | CA |
| 2024-01-11 | 350-355-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | STOCKTON | CA |
| 2024-01-04 | 350-355-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STOCKTON | CA |
| 2023-12-21 | 350-214-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | VALLEY SPG | CA |
| 2023-12-21 | 350-214-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | VALLEY SPG | CA |
| 2023-12-21 | 350-215-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | SNELLING | CA |
| 2023-12-21 | 350-215-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | SNELLING | CA |
| 2023-12-21 | 350-216-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | MODESTO | CA |
| 2023-12-21 | 350-216-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | MODESTO | CA |
| 2023-12-21 | 350-216-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | MODESTO | CA |
| 2023-12-21 | 350-216-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | MODESTO | CA |
| 2023-12-21 | 350-235-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | CLEMENTS | CA |
| 2023-12-21 | 350-235-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | CLEMENTS | CA |
| 2023-12-20 | 350-203-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | DOS PALOS | CA |
| 2023-12-20 | 350-203-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | DOS PALOS | CA |
| 2023-12-20 | 350-212-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | SUTTER CRK | CA |
| 2023-12-20 | 350-212-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | SUTTER CRK | CA |
| 2023-12-20 | 350-213-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | LINDEN | 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.