NumberResearchRecent thousands-block assignments
1 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, last 30 days — NPA 323
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2011-07-15 | 323-435-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 06 | CA |
| 2011-07-15 | 323-435-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 06 | CA |
| 2011-07-15 | 323-435-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 06 | CA |
| 2011-07-15 | 323-435-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 06 | CA |
| 2011-07-15 | 323-435-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 06 | CA |
| 2011-07-15 | 323-546-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 08 | CA |
| 2011-07-15 | 323-546-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 08 | CA |
| 2011-07-15 | 323-546-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 08 | CA |
| 2011-07-01 | 323-435-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 06 | CA |
| 2011-06-29 | 323-207-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 08 | CA |
| 2011-06-29 | 323-207-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 08 | CA |
| 2011-06-29 | 323-207-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 08 | CA |
| 2011-06-29 | 323-301-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 14 | CA |
| 2011-06-29 | 323-425-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 06 | CA |
| 2011-06-29 | 323-426-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | LSAN DA 02 | CA |
| 2011-06-29 | 323-426-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | LSAN DA 02 | CA |
| 2011-06-29 | 323-596-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 12 | CA |
| 2011-06-29 | 323-696-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 09 | CA |
| 2011-06-29 | 323-696-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 09 | CA |
| 2011-06-29 | 323-696-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 09 | CA |
| 2011-06-29 | 323-696-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 09 | CA |
| 2011-06-29 | 323-696-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 09 | CA |
| 2011-06-29 | 323-696-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 09 | CA |
| 2011-06-29 | 323-696-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 09 | CA |
| 2011-06-29 | 323-835-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 06 | CA |
| 2011-06-27 | 323-412-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 02 | CA |
| 2011-06-27 | 323-412-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 02 | CA |
| 2011-06-27 | 323-425-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | LSAN DA 06 | CA |
| 2011-06-23 | 323-400-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | MONTEBELLO | CA |
| 2011-06-09 | 323-412-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 02 | CA |
| 2011-06-09 | 323-522-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 02 | CA |
| 2011-06-03 | 323-450-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LSAN DA 14 | CA |
| 2011-05-25 | 323-248-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MONTEBELLO | CA |
| 2011-05-19 | 323-642-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LSAN DA 12 | CA |
| 2011-04-25 | 323-334-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 11 | CA |
| 2011-04-25 | 323-336-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | LSAN DA 09 | CA |
| 2011-04-25 | 323-413-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 13 | CA |
| 2011-04-25 | 323-413-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 13 | CA |
| 2011-04-25 | 323-413-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 13 | CA |
| 2011-04-25 | 323-418-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 09 | CA |
| 2011-04-25 | 323-552-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 09 | CA |
| 2011-04-25 | 323-642-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 12 | CA |
| 2011-04-25 | 323-682-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 03 | CA |
| 2011-04-25 | 323-682-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 03 | CA |
| 2011-04-25 | 323-834-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 09 | CA |
| 2011-04-25 | 323-903-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 12 | CA |
| 2011-04-25 | 323-905-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 09 | CA |
| 2011-04-25 | 323-942-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 09 | CA |
| 2011-04-25 | 323-977-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 09 | CA |
| 2011-04-25 | 323-989-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 11 | 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.