NumberResearchRecent thousands-block assignments
25 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 858
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 |
|---|---|---|---|---|---|---|---|
| 2025-01-28 | 858-423-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNDG SNDG | CA |
| 2025-01-28 | 858-423-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNDG SNDG | CA |
| 2025-01-28 | 858-425-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNDG SNDG | CA |
| 2025-01-28 | 858-425-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNDG SNDG | CA |
| 2025-01-28 | 858-425-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNDG SNDG | CA |
| 2025-01-28 | 858-425-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNDG SNDG | CA |
| 2025-01-24 | 858-423-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNDG SNDG | CA |
| 2025-01-24 | 858-423-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNDG SNDG | CA |
| 2025-01-15 | 858-206-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | POWAY | CA |
| 2025-01-15 | 858-416-2XXX | 2000–2999 | Assigned | NUSO, LLC | 732J | LA MESA | CA |
| 2025-01-15 | 858-416-3XXX | 3000–3999 | Assigned | NUSO, LLC | 732J | LA MESA | CA |
| 2025-01-15 | 858-416-4XXX | 4000–4999 | Assigned | NUSO, LLC | 732J | LA MESA | CA |
| 2025-01-15 | 858-768-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LA JOLLA | CA |
| 2025-01-13 | 858-416-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LA MESA | CA |
| 2025-01-13 | 858-416-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LA MESA | CA |
| 2025-01-13 | 858-421-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RNCHOBRNDO | CA |
| 2025-01-13 | 858-421-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RNCHOBRNDO | CA |
| 2025-01-07 | 858-419-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNDG SNDG | CA |
| 2025-01-06 | 858-415-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNDG SNDG | CA |
| 2025-01-06 | 858-415-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNDG SNDG | CA |
| 2025-01-06 | 858-415-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNDG SNDG | CA |
| 2025-01-06 | 858-418-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNDG SNDG | CA |
| 2025-01-06 | 858-418-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNDG SNDG | CA |
| 2025-01-06 | 858-418-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNDG SNDG | CA |
| 2025-01-06 | 858-418-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNDG SNDG | CA |
| 2025-01-06 | 858-418-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNDG SNDG | CA |
| 2025-01-06 | 858-418-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNDG SNDG | CA |
| 2025-01-06 | 858-418-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNDG SNDG | CA |
| 2025-01-06 | 858-419-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNDG SNDG | CA |
| 2025-01-06 | 858-419-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNDG SNDG | CA |
| 2025-01-06 | 858-419-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNDG SNDG | CA |
| 2025-01-06 | 858-419-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNDG SNDG | CA |
| 2025-01-06 | 858-419-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNDG SNDG | CA |
| 2025-01-06 | 858-419-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNDG SNDG | CA |
| 2025-01-06 | 858-419-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNDG SNDG | CA |
| 2025-01-06 | 858-419-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNDG SNDG | CA |
| 2025-01-03 | 858-407-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CHULAVISTA | CA |
| 2025-01-03 | 858-407-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CHULAVISTA | CA |
| 2025-01-03 | 858-407-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CHULAVISTA | CA |
| 2025-01-03 | 858-407-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CHULAVISTA | CA |
| 2025-01-02 | 858-409-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | LA JOLLA | CA |
| 2025-01-02 | 858-409-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | LA JOLLA | CA |
| 2025-01-02 | 858-409-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | LA JOLLA | CA |
| 2025-01-02 | 858-409-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | LA JOLLA | CA |
| 2025-01-02 | 858-409-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | LA JOLLA | CA |
| 2024-12-06 | 858-407-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CHULAVISTA | CA |
| 2024-12-06 | 858-407-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CHULAVISTA | CA |
| 2024-12-06 | 858-424-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | EL CAJON | CA |
| 2024-11-27 | 858-384-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SNDG LVTA | CA |
| 2024-11-22 | 858-417-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | NATIONALCY | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.