NumberResearchRecent thousands-block assignments
0 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, all time — NPA 408
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2005-04-14 | 408-220-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SUNNYVALE | CA |
| 2005-04-14 | 408-220-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SUNNYVALE | CA |
| 2005-04-06 | 408-329-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SUNNYVALE | CA |
| 2005-04-06 | 408-329-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SUNNYVALE | CA |
| 2005-04-01 | 408-340-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CAMPBELL | CA |
| 2005-03-23 | 408-533-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNJS WEST | CA |
| 2005-03-23 | 408-533-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNJS WEST | CA |
| 2005-03-23 | 408-533-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNJS WEST | CA |
| 2005-03-23 | 408-716-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SUNNYVALE | CA |
| 2005-03-21 | 408-826-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNJS SOUTH | CA |
| 2005-03-21 | 408-826-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNJS SOUTH | CA |
| 2005-03-21 | 408-960-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNJS SOUTH | CA |
| 2005-03-21 | 408-960-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNJS SOUTH | CA |
| 2005-02-24 | 408-454-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNJS WEST | CA |
| 2005-02-24 | 408-454-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNJS WEST | CA |
| 2005-02-24 | 408-833-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNJS SOUTH | CA |
| 2005-02-24 | 408-960-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNJS SOUTH | CA |
| 2005-02-18 | 408-414-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNJS SOUTH | CA |
| 2005-02-18 | 408-463-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNJS SOUTH | CA |
| 2005-02-18 | 408-532-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNJS SOUTH | CA |
| 2005-02-17 | 408-201-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | MORGANHILL | CA |
| 2005-02-17 | 408-216-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNJS WEST | CA |
| 2005-02-17 | 408-329-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SUNNYVALE | CA |
| 2005-02-17 | 408-427-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | GILROY | CA |
| 2005-02-17 | 408-688-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | CAMPBELL | CA |
| 2005-02-16 | 408-518-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | SNJS NORTH | CA |
| 2005-02-16 | 408-648-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | SNJS WEST | CA |
| 2005-02-16 | 408-648-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | SNJS WEST | CA |
| 2005-02-16 | 408-648-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | SNJS WEST | CA |
| 2005-02-16 | 408-648-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | SNJS WEST | CA |
| 2005-02-16 | 408-726-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | SNJS NORTH | CA |
| 2005-02-16 | 408-726-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | SNJS NORTH | CA |
| 2005-02-16 | 408-726-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | SNJS NORTH | CA |
| 2005-02-16 | 408-726-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | SNJS NORTH | CA |
| 2005-02-15 | 408-216-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNJS WEST | CA |
| 2005-02-15 | 408-216-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNJS WEST | CA |
| 2005-02-09 | 408-843-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | GILROY | CA |
| 2005-02-09 | 408-843-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | GILROY | CA |
| 2005-02-08 | 408-726-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNJS NORTH | CA |
| 2005-02-08 | 408-726-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNJS NORTH | CA |
| 2005-02-08 | 408-726-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNJS NORTH | CA |
| 2005-02-08 | 408-726-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNJS NORTH | CA |
| 2005-02-08 | 408-726-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNJS NORTH | CA |
| 2005-02-07 | 408-340-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CAMPBELL | CA |
| 2005-02-07 | 408-340-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CAMPBELL | CA |
| 2005-02-04 | 408-512-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNJS WEST | CA |
| 2005-02-04 | 408-512-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNJS WEST | CA |
| 2005-02-03 | 408-429-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CAMPBELL | CA |
| 2005-02-03 | 408-717-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | CA |
| 2005-02-03 | 408-826-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | 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.