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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2003-04-03 | 408-469-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | SUNNYVALE | CA |
| 2003-04-03 | 408-469-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | SUNNYVALE | CA |
| 2003-04-03 | 408-469-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | SUNNYVALE | CA |
| 2003-04-03 | 408-469-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | SUNNYVALE | CA |
| 2003-04-03 | 408-469-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | SUNNYVALE | CA |
| 2003-04-03 | 408-469-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | SUNNYVALE | CA |
| 2003-04-03 | 408-469-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | SUNNYVALE | CA |
| 2003-04-03 | 408-469-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | SUNNYVALE | CA |
| 2003-04-03 | 408-469-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | SUNNYVALE | CA |
| 2003-03-25 | 408-849-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | SNJS WEST | CA |
| 2003-03-25 | 408-849-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | SNJS WEST | CA |
| 2003-03-25 | 408-849-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | SNJS WEST | CA |
| 2003-03-25 | 408-849-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | SNJS WEST | CA |
| 2003-03-25 | 408-849-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | SNJS WEST | CA |
| 2003-03-25 | 408-849-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | SNJS WEST | CA |
| 2003-03-25 | 408-849-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | SNJS WEST | CA |
| 2003-03-25 | 408-849-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | SNJS WEST | CA |
| 2003-03-25 | 408-849-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | SNJS WEST | CA |
| 2003-03-19 | 408-833-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNJS SOUTH | CA |
| 2003-03-19 | 408-833-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNJS SOUTH | CA |
| 2003-03-17 | 408-903-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | SNJS SOUTH | CA |
| 2003-03-17 | 408-903-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | SNJS SOUTH | CA |
| 2003-03-17 | 408-903-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | SNJS SOUTH | CA |
| 2003-03-17 | 408-903-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | SNJS SOUTH | CA |
| 2003-03-17 | 408-903-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | SNJS SOUTH | CA |
| 2003-03-14 | 408-427-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GILROY | CA |
| 2003-03-14 | 408-427-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GILROY | CA |
| 2003-03-14 | 408-427-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GILROY | CA |
| 2003-03-13 | 408-513-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | SNJS SOUTH | CA |
| 2003-03-12 | 408-484-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SARATOGA | CA |
| 2003-03-06 | 408-449-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | SNJS NORTH | CA |
| 2003-03-06 | 408-449-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | SNJS NORTH | CA |
| 2003-03-06 | 408-597-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | SNJS NORTH | CA |
| 2003-03-06 | 408-597-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | SNJS NORTH | 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 |
| 2003-02-12 | 408-717-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNJS SOUTH | CA |
| 2003-02-07 | 408-603-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | CAMPBELL | CA |
| 2003-01-31 | 408-449-5XXX | 5000–5999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | SNJS NORTH | CA |
| 2003-01-13 | 408-368-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SUNNYVALE | CA |
| 2003-01-10 | 408-705-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNJS SOUTH | CA |
| 2003-01-10 | 408-705-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNJS SOUTH | CA |
| 2003-01-10 | 408-705-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNJS SOUTH | CA |
| 2003-01-10 | 408-705-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNJS SOUTH | CA |
| 2003-01-10 | 408-705-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNJS SOUTH | CA |
| 2002-12-18 | 408-329-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SUNNYVALE | CA |
| 2002-12-18 | 408-426-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CAMPBELL | CA |
| 2002-12-18 | 408-608-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CAMPBELL | 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.