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 |
|---|---|---|---|---|---|---|---|
| 2025-02-20 | 350-229-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MANTECA | CA |
| 2025-02-20 | 350-229-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MANTECA | CA |
| 2025-02-20 | 350-229-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MANTECA | CA |
| 2025-02-12 | 350-203-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | DOS PALOS | CA |
| 2025-01-28 | 350-230-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MODESTO | CA |
| 2025-01-28 | 350-230-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MODESTO | CA |
| 2025-01-28 | 350-230-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MODESTO | CA |
| 2025-01-28 | 350-230-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MODESTO | CA |
| 2025-01-28 | 350-350-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STOCKTON | CA |
| 2025-01-28 | 350-350-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STOCKTON | CA |
| 2025-01-27 | 350-630-3XXX | 3000–3999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | RIVERBANK | CA |
| 2025-01-24 | 350-231-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2025-01-24 | 350-231-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2025-01-24 | 350-231-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2025-01-24 | 350-231-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2025-01-24 | 350-231-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | STOCKTON | CA |
| 2025-01-24 | 350-234-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | JACKSON | CA |
| 2025-01-13 | 350-218-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MANTECA | CA |
| 2025-01-08 | 350-203-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | DOS PALOS | CA |
| 2025-01-08 | 350-253-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLEMENTS | CA |
| 2025-01-07 | 350-223-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MERCED | CA |
| 2025-01-02 | 350-203-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DOS PALOS | CA |
| 2025-01-02 | 350-213-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LINDEN | CA |
| 2025-01-02 | 350-215-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNELLING | CA |
| 2025-01-02 | 350-237-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PATTERSON | CA |
| 2024-12-30 | 350-630-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RIVERBANK | CA |
| 2024-12-16 | 350-227-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TRACY | CA |
| 2024-12-16 | 350-777-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GALT | CA |
| 2024-12-16 | 350-777-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GALT | CA |
| 2024-12-16 | 350-999-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GUSTINE | CA |
| 2024-12-16 | 350-999-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GUSTINE | CA |
| 2024-12-06 | 350-236-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | JAMESTOWN | CA |
| 2024-12-06 | 350-236-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | JAMESTOWN | CA |
| 2024-11-26 | 350-600-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OAKDALE | CA |
| 2024-11-25 | 350-230-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MODESTO | CA |
| 2024-11-21 | 350-203-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | DOS PALOS | CA |
| 2024-11-21 | 350-228-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2024-11-21 | 350-228-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2024-11-21 | 350-228-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2024-11-21 | 350-228-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2024-11-21 | 350-228-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2024-11-13 | 350-222-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | HUGHSON | CA |
| 2024-11-12 | 350-234-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JACKSON | CA |
| 2024-11-12 | 350-234-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JACKSON | CA |
| 2024-11-12 | 350-234-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JACKSON | CA |
| 2024-11-12 | 350-234-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JACKSON | CA |
| 2024-11-12 | 350-234-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JACKSON | CA |
| 2024-11-12 | 350-234-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JACKSON | CA |
| 2024-11-12 | 350-234-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JACKSON | CA |
| 2024-11-12 | 350-234-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JACKSON | 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.