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 |
|---|---|---|---|---|---|---|---|
| 2026-03-12 | 350-237-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | PATTERSON | CA |
| 2026-03-12 | 350-237-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | PATTERSON | CA |
| 2026-03-12 | 350-239-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | LOS BANOS | CA |
| 2026-03-12 | 350-251-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | OAKDALE | CA |
| 2026-03-11 | 350-246-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | GALT | CA |
| 2026-03-11 | 350-247-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | LODI | CA |
| 2026-03-03 | 350-210-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | TUOLUMNE | CA |
| 2026-03-02 | 350-223-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | MERCED | CA |
| 2026-02-25 | 350-213-2XXX | 2000–2999 | Assigned | HD CARRIER LLC | 321J | LINDEN | CA |
| 2026-02-25 | 350-213-3XXX | 3000–3999 | Assigned | HD CARRIER LLC | 321J | LINDEN | CA |
| 2026-02-19 | 350-305-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | YOSEMITE | CA |
| 2026-02-18 | 350-226-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2026-02-18 | 350-227-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | TRACY | CA |
| 2026-02-18 | 350-242-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | STOCKTON | CA |
| 2026-02-18 | 350-243-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | MANTECA | CA |
| 2026-02-18 | 350-500-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | ATWATER | CA |
| 2026-02-18 | 350-750-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | SNRA MAIN | CA |
| 2026-02-04 | 350-231-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2026-02-04 | 350-241-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2026-02-04 | 350-241-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | STOCKTON | CA |
| 2026-01-30 | 350-240-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | TURLOCK | CA |
| 2026-01-30 | 350-630-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | RIVERBANK | CA |
| 2026-01-21 | 350-247-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LODI | CA |
| 2026-01-16 | 350-256-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MODESTO | CA |
| 2026-01-16 | 350-256-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MODESTO | CA |
| 2026-01-14 | 350-960-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WTFR MAIN | CA |
| 2026-01-13 | 350-242-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | STOCKTON | CA |
| 2026-01-13 | 350-242-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | STOCKTON | CA |
| 2026-01-13 | 350-242-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | STOCKTON | CA |
| 2026-01-12 | 350-235-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CLEMENTS | CA |
| 2026-01-06 | 350-222-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | HUGHSON | CA |
| 2025-12-18 | 350-960-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | WTFR MAIN | CA |
| 2025-12-12 | 350-223-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | MERCED | CA |
| 2025-12-12 | 350-238-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2025-12-12 | 350-238-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2025-12-12 | 350-255-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | MANTECA | CA |
| 2025-12-12 | 350-256-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | MODESTO | CA |
| 2025-12-12 | 350-256-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MODESTO | CA |
| 2025-12-11 | 350-246-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | GALT | CA |
| 2025-12-11 | 350-247-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | LODI | CA |
| 2025-12-11 | 350-247-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | LODI | CA |
| 2025-12-10 | 350-249-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-12-10 | 350-249-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-12-10 | 350-249-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-12-10 | 350-249-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ATWATER | CA |
| 2025-12-10 | 350-254-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TRACY | CA |
| 2025-12-10 | 350-254-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TRACY | CA |
| 2025-12-04 | 350-244-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | JACKSON | CA |
| 2025-12-03 | 350-600-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OAKDALE | CA |
| 2025-11-20 | 350-750-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SNRA MAIN | 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.