NumberResearchRecent thousands-block assignments
7 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 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 |
|---|---|---|---|---|---|---|---|
| 2023-08-10 | 350-204-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2023-08-10 | 350-204-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2023-08-04 | 350-207-4XXX | 4000–4999 | Assigned | NUSO, LLC | 732J | MODESTO | CA |
| 2023-07-21 | 350-235-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | CLEMENTS | CA |
| 2023-07-21 | 350-235-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | CLEMENTS | CA |
| 2023-07-21 | 350-235-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | CLEMENTS | CA |
| 2023-07-21 | 350-235-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | CLEMENTS | CA |
| 2023-07-21 | 350-235-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | CLEMENTS | CA |
| 2023-07-20 | 350-209-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | VALLEY SPG | CA |
| 2023-07-20 | 350-209-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | VALLEY SPG | CA |
| 2023-07-20 | 350-209-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | VALLEY SPG | CA |
| 2023-07-20 | 350-209-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | VALLEY SPG | CA |
| 2023-07-20 | 350-209-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | VALLEY SPG | CA |
| 2023-07-20 | 350-444-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | SNELLING | CA |
| 2023-07-20 | 350-444-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | SNELLING | CA |
| 2023-07-20 | 350-444-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | SNELLING | CA |
| 2023-07-20 | 350-444-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | SNELLING | CA |
| 2023-07-20 | 350-444-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | SNELLING | CA |
| 2023-07-14 | 350-204-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ATWATER | CA |
| 2023-07-05 | 350-250-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TRACY | CA |
| 2023-06-22 | 350-207-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2023-06-22 | 350-207-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2023-06-22 | 350-207-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2023-06-21 | 350-210-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | TUOLUMNE | CA |
| 2023-06-16 | 350-222-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | HUGHSON | CA |
| 2023-05-19 | 350-207-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2023-05-19 | 350-207-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2023-05-19 | 350-207-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2023-05-12 | 350-206-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TURLOCK | CA |
| 2023-05-12 | 350-206-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TURLOCK | CA |
| 2023-05-03 | 350-444-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | SNELLING | CA |
| 2023-04-18 | 350-209-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | VALLEY SPG | CA |
| 2023-04-11 | 350-200-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | LODI | CA |
| 2023-04-07 | 350-204-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | ATWATER | CA |
| 2023-03-23 | 350-206-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | TURLOCK | CA |
| 2023-03-16 | 350-205-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | PLANADA | CA |
| 2023-03-02 | 350-206-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | TURLOCK | CA |
| 2023-02-27 | 350-206-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | TURLOCK | CA |
| 2023-02-17 | 350-200-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | LODI | CA |
| 2023-02-17 | 350-777-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | GALT | CA |
| 2023-01-30 | 350-205-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | PLANADA | CA |
| 2023-01-24 | 350-204-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | ATWATER | CA |
| 2023-01-19 | 350-201-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | WALLACE | CA |
| 2023-01-18 | 350-205-1XXX | 1000–1999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | PLANADA | CA |
| 2023-01-17 | 350-777-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | GALT | CA |
| 2023-01-11 | 350-204-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2023-01-11 | 350-204-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2023-01-11 | 350-204-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2023-01-09 | 350-444-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | SNELLING | CA |
| 2023-01-05 | 350-888-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | GROVELAND | CA |
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.