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 |
|---|---|---|---|---|---|---|---|
| 2010-10-01 | 408-471-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2010-10-01 | 408-883-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2010-10-01 | 408-883-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2010-10-01 | 408-883-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2010-10-01 | 408-883-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2010-10-01 | 408-883-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2010-10-01 | 408-883-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2010-09-30 | 408-684-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2010-09-30 | 408-684-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2010-09-30 | 408-684-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2010-09-30 | 408-684-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS NORTH | CA |
| 2010-09-30 | 408-753-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2010-09-30 | 408-753-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2010-09-30 | 408-753-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2010-09-30 | 408-753-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2010-09-30 | 408-753-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2010-09-30 | 408-785-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2010-09-30 | 408-785-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2010-09-30 | 408-785-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2010-09-30 | 408-785-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2010-09-30 | 408-785-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2010-09-30 | 408-785-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2010-09-30 | 408-785-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2010-09-30 | 408-785-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNJS WEST | CA |
| 2010-09-29 | 408-337-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | GILROY | CA |
| 2010-09-29 | 408-548-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUNNYVALE | CA |
| 2010-09-29 | 408-596-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LOS GATOS | CA |
| 2010-09-29 | 408-596-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LOS GATOS | CA |
| 2010-09-29 | 408-659-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MORGANHILL | CA |
| 2010-09-29 | 408-659-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MORGANHILL | CA |
| 2010-09-29 | 408-659-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MORGANHILL | CA |
| 2010-09-29 | 408-665-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | GILROY | CA |
| 2010-09-29 | 408-675-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUNNYVALE | CA |
| 2010-09-29 | 408-675-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUNNYVALE | CA |
| 2010-09-29 | 408-675-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUNNYVALE | CA |
| 2010-09-29 | 408-675-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUNNYVALE | CA |
| 2010-09-29 | 408-675-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUNNYVALE | CA |
| 2010-09-29 | 408-675-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUNNYVALE | CA |
| 2010-09-29 | 408-675-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUNNYVALE | CA |
| 2010-09-29 | 408-675-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUNNYVALE | CA |
| 2010-09-29 | 408-990-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUNNYVALE | CA |
| 2010-09-27 | 408-724-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SNJS SOUTH | CA |
| 2010-09-22 | 408-724-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | SNJS SOUTH | CA |
| 2010-09-22 | 408-724-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | SNJS SOUTH | CA |
| 2010-09-15 | 408-724-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNJS SOUTH | CA |
| 2010-09-15 | 408-724-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNJS SOUTH | CA |
| 2010-09-15 | 408-915-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CAMPBELL | CA |
| 2010-09-13 | 408-800-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | SNJS SOUTH | CA |
| 2010-09-09 | 408-455-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LOS GATOS | CA |
| 2010-09-03 | 408-684-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | SNJS NORTH | 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.