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
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Jun 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-03-29 | 408-657-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN MARTIN | CA |
| 2019-09-17 | 408-343-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2019-09-17 | 408-919-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2018-10-29 | 408-673-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2016-07-26 | 408-721-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUNNYVALE | CA |
| 2016-07-26 | 408-721-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUNNYVALE | CA |
| 2016-07-26 | 408-721-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUNNYVALE | CA |
| 2016-07-26 | 408-721-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUNNYVALE | CA |
| 2016-07-26 | 408-721-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUNNYVALE | CA |
| 2016-07-26 | 408-721-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUNNYVALE | CA |
| 2016-07-22 | 408-495-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2016-07-22 | 408-495-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2016-07-22 | 408-495-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2016-07-22 | 408-652-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2016-07-22 | 408-652-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2016-06-21 | 408-669-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS SOUTH | CA |
| 2014-11-10 | 408-669-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS SOUTH | CA |
| 2014-11-10 | 408-669-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS SOUTH | CA |
| 2014-11-10 | 408-669-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS SOUTH | CA |
| 2014-11-06 | 408-359-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SARATOGA | CA |
| 2014-11-06 | 408-359-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SARATOGA | CA |
| 2014-11-06 | 408-898-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SARATOGA | CA |
| 2014-07-24 | 408-404-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2014-02-25 | 408-695-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN MARTIN | CA |
| 2014-02-25 | 408-809-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS SOUTH | CA |
| 2014-02-25 | 408-809-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS SOUTH | CA |
| 2014-02-25 | 408-809-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS SOUTH | CA |
| 2014-02-25 | 408-909-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN MARTIN | CA |
| 2014-02-25 | 408-909-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN MARTIN | CA |
| 2014-02-25 | 408-909-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN MARTIN | CA |
| 2014-02-25 | 408-909-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN MARTIN | CA |
| 2014-02-25 | 408-909-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN MARTIN | CA |
| 2014-02-25 | 408-909-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SAN MARTIN | CA |
| 2013-10-01 | 408-571-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2013-10-01 | 408-618-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2013-10-01 | 408-714-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2013-10-01 | 408-797-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2013-10-01 | 408-901-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2013-10-01 | 408-901-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2013-10-01 | 408-906-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2013-10-01 | 408-906-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2013-06-17 | 408-275-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2013-06-17 | 408-610-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2013-06-17 | 408-610-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2013-06-17 | 408-610-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2013-06-17 | 408-610-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2013-06-17 | 408-767-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | GILROY | CA |
| 2013-06-17 | 408-831-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2013-06-17 | 408-831-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2013-06-17 | 408-831-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | 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.