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 |
|---|---|---|---|---|---|---|---|
| 2025-11-12 | 350-222-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | HUGHSON | CA |
| 2025-11-04 | 350-248-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | ATWATER | CA |
| 2025-11-04 | 350-252-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | TURLOCK | CA |
| 2025-11-04 | 350-252-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | TURLOCK | CA |
| 2025-11-04 | 350-252-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | TURLOCK | CA |
| 2025-11-04 | 350-252-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | TURLOCK | CA |
| 2025-11-04 | 350-777-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | GALT | CA |
| 2025-10-30 | 350-248-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-10-30 | 350-248-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-10-30 | 350-248-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-10-30 | 350-252-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | TURLOCK | CA |
| 2025-10-17 | 350-242-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | STOCKTON | CA |
| 2025-10-16 | 350-353-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2025-10-16 | 350-353-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2025-10-16 | 350-353-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2025-10-16 | 350-353-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2025-10-09 | 350-252-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TURLOCK | CA |
| 2025-10-09 | 350-252-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TURLOCK | CA |
| 2025-10-02 | 350-237-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PATTERSON | CA |
| 2025-10-02 | 350-237-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | PATTERSON | CA |
| 2025-10-02 | 350-237-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | PATTERSON | CA |
| 2025-09-25 | 350-240-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | TURLOCK | CA |
| 2025-09-19 | 350-243-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | MANTECA | CA |
| 2025-09-19 | 350-247-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | LODI | CA |
| 2025-09-19 | 350-247-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | LODI | CA |
| 2025-09-17 | 350-240-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | TURLOCK | CA |
| 2025-09-15 | 350-955-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WTFR DNPR | CA |
| 2025-09-12 | 350-353-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MODESTO | CA |
| 2025-09-12 | 350-353-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MODESTO | CA |
| 2025-09-12 | 350-353-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MODESTO | CA |
| 2025-09-11 | 350-867-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | LE GRAND | CA |
| 2025-09-05 | 350-666-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | SANANDREAS | CA |
| 2025-09-04 | 350-251-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OAKDALE | CA |
| 2025-09-03 | 350-240-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | TURLOCK | CA |
| 2025-09-03 | 350-240-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | TURLOCK | CA |
| 2025-09-03 | 350-248-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | ATWATER | CA |
| 2025-09-03 | 350-353-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2025-09-03 | 350-353-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2025-08-28 | 350-353-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | MODESTO | CA |
| 2025-08-22 | 350-249-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ATWATER | CA |
| 2025-08-20 | 350-244-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | JACKSON | CA |
| 2025-08-20 | 350-247-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LODI | CA |
| 2025-08-20 | 350-248-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-08-20 | 350-248-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-08-20 | 350-248-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-08-20 | 350-248-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-08-13 | 350-221-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | LODI | CA |
| 2025-08-13 | 350-227-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | TRACY | CA |
| 2025-08-13 | 350-246-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | GALT | CA |
| 2025-08-06 | 350-205-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PLANADA | 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.