NumberResearchRecent thousands-block assignments
0 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, all time — NPA 408
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-08-22 | 408-581-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNJS WEST | CA |
| 2022-08-22 | 408-581-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNJS WEST | CA |
| 2022-08-19 | 408-973-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNJS WEST | CA |
| 2022-07-15 | 408-662-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SNJS NORTH | CA |
| 2022-05-19 | 408-412-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CAMPBELL | CA |
| 2022-04-20 | 408-693-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | CA |
| 2022-04-18 | 408-416-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNJS NORTH | CA |
| 2022-04-13 | 408-426-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | CAMPBELL | CA |
| 2022-03-29 | 408-657-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN MARTIN | CA |
| 2022-03-12 | 408-702-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SUNNYVALE | CA |
| 2022-02-02 | 408-662-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNJS NORTH | CA |
| 2021-09-16 | 408-381-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | SNJS WEST | CA |
| 2021-09-16 | 408-381-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | SNJS WEST | CA |
| 2021-09-16 | 408-381-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | SNJS WEST | CA |
| 2021-09-16 | 408-381-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SNJS WEST | CA |
| 2021-09-16 | 408-381-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SNJS WEST | CA |
| 2021-09-16 | 408-381-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | SNJS WEST | CA |
| 2021-09-16 | 408-381-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SNJS WEST | CA |
| 2021-09-16 | 408-381-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SNJS WEST | CA |
| 2021-09-16 | 408-381-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | SNJS WEST | CA |
| 2021-09-16 | 408-381-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | SNJS WEST | CA |
| 2021-08-04 | 408-748-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNJS WEST | CA |
| 2021-08-04 | 408-790-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNJS WEST | CA |
| 2021-05-24 | 408-333-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | SNJS SOUTH | CA |
| 2021-05-24 | 408-333-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | SNJS SOUTH | CA |
| 2021-05-24 | 408-333-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | SNJS SOUTH | CA |
| 2021-04-22 | 408-662-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNJS NORTH | CA |
| 2021-04-22 | 408-662-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNJS NORTH | CA |
| 2021-04-09 | 408-333-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | CA |
| 2021-04-09 | 408-333-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | CA |
| 2021-04-09 | 408-333-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | CA |
| 2021-04-09 | 408-333-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | CA |
| 2021-04-09 | 408-333-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | CA |
| 2021-04-05 | 408-805-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | SARATOGA | CA |
| 2021-03-30 | 408-333-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | SNJS SOUTH | CA |
| 2021-03-15 | 408-385-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CAMPBELL | CA |
| 2021-03-02 | 408-613-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNJS SOUTH | CA |
| 2020-12-09 | 408-855-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SNJS WEST | CA |
| 2020-11-11 | 408-461-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | SAN MARTIN | CA |
| 2020-11-11 | 408-877-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | SARATOGA | CA |
| 2020-11-06 | 408-404-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | SNJS NORTH | CA |
| 2020-11-06 | 408-662-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | SNJS NORTH | CA |
| 2020-11-06 | 408-683-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | SAN MARTIN | CA |
| 2020-11-06 | 408-692-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SAN MARTIN | CA |
| 2020-11-06 | 408-715-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SNJS NORTH | CA |
| 2020-11-06 | 408-877-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | SARATOGA | CA |
| 2020-11-06 | 408-884-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | LOS GATOS | CA |
| 2020-11-06 | 408-889-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SNJS NORTH | CA |
| 2020-11-05 | 408-876-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS NORTH | CA |
| 2020-10-15 | 408-754-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | 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.