NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-04-07 | 408-408-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2025-04-07 | 408-408-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2019-08-22 | 408-988-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2018-11-15 | 408-790-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2018-11-07 | 408-719-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS NORTH | CA |
| 2018-07-19 | 408-970-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2016-08-08 | 408-326-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2015-03-17 | 408-908-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS NORTH | CA |
| 2013-01-17 | 408-426-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | CAMPBELL | CA |
| 2012-08-13 | 408-664-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SUNNYVALE | CA |
| 2012-07-03 | 408-664-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SUNNYVALE | CA |
| 2012-04-02 | 408-601-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS NORTH | CA |
| 2012-04-02 | 408-601-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS NORTH | CA |
| 2012-04-02 | 408-601-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS NORTH | CA |
| 2012-04-02 | 408-601-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS NORTH | CA |
| 2012-03-19 | 408-664-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SUNNYVALE | CA |
| 2012-03-19 | 408-664-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SUNNYVALE | CA |
| 2011-07-11 | 408-783-0XXX | 0000–0999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2011-07-11 | 408-783-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2011-07-11 | 408-783-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2011-07-11 | 408-783-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2011-07-11 | 408-783-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2011-07-11 | 408-783-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2011-07-11 | 408-783-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2011-07-11 | 408-783-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2011-07-11 | 408-783-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2011-07-11 | 408-783-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2011-03-02 | 408-900-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SUNNYVALE | CA |
| 2010-08-17 | 408-785-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2010-05-10 | 408-752-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SUNNYVALE | CA |
| 2010-05-03 | 408-701-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SUNNYVALE | CA |
| 2009-12-30 | 408-337-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | GILROY | CA |
| 2008-06-30 | 408-899-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2007-10-16 | 408-642-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2007-10-16 | 408-642-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2006-12-27 | 408-352-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2006-12-27 | 408-352-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2005-10-10 | 408-556-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2005-10-07 | 408-588-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2005-08-15 | 408-541-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SUNNYVALE | CA |
| 2004-12-28 | 408-454-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2004-07-21 | 408-454-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2004-04-27 | 408-825-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | MORGANHILL | CA |
| 2004-04-13 | 408-454-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2004-02-02 | 408-454-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS WEST | CA |
| 2003-05-28 | 408-340-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | CAMPBELL | CA |
| 2003-02-12 | 408-717-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS SOUTH | CA |
| 2003-02-12 | 408-717-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS SOUTH | CA |
| 2003-02-12 | 408-717-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS SOUTH | CA |
| 2003-02-12 | 408-717-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS SOUTH | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.