NumberResearchRecent thousands-block assignments
1 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, last 30 days — NPA 323
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 |
|---|---|---|---|---|---|---|---|
| 2015-02-26 | 323-593-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 02 | CA |
| 2015-02-25 | 323-894-5XXX | 5000–5999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | LSAN DA 06 | CA |
| 2015-02-24 | 323-794-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 14 | CA |
| 2015-02-24 | 323-794-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 14 | CA |
| 2015-02-19 | 323-492-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-02-19 | 323-492-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-02-19 | 323-942-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-02-19 | 323-942-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-02-19 | 323-942-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-02-19 | 323-942-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-02-19 | 323-942-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-02-19 | 323-942-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-02-09 | 323-740-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2015-02-09 | 323-740-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2015-02-09 | 323-740-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2015-02-09 | 323-740-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2015-02-09 | 323-740-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2015-02-09 | 323-740-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2015-02-09 | 323-740-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2015-02-09 | 323-740-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2015-02-09 | 323-926-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | MONTEBELLO | CA |
| 2015-02-09 | 323-926-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | MONTEBELLO | CA |
| 2015-02-09 | 323-926-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MONTEBELLO | CA |
| 2015-02-09 | 323-926-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MONTEBELLO | CA |
| 2015-02-09 | 323-926-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MONTEBELLO | CA |
| 2015-02-09 | 323-926-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MONTEBELLO | CA |
| 2015-02-09 | 323-926-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MONTEBELLO | CA |
| 2015-02-05 | 323-714-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MONTEBELLO | CA |
| 2015-02-03 | 323-561-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-02-03 | 323-561-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-02-03 | 323-561-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-02-03 | 323-561-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-02-03 | 323-561-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-02-03 | 323-561-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-01-30 | 323-815-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 12 | CA |
| 2015-01-30 | 323-815-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 12 | CA |
| 2015-01-29 | 323-675-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-01-29 | 323-675-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-01-20 | 323-597-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MONTEBELLO | CA |
| 2015-01-20 | 323-597-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MONTEBELLO | CA |
| 2015-01-20 | 323-621-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MONTEBELLO | CA |
| 2015-01-20 | 323-621-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MONTEBELLO | CA |
| 2015-01-20 | 323-621-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MONTEBELLO | CA |
| 2015-01-19 | 323-348-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 12 | CA |
| 2015-01-16 | 323-894-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 06 | CA |
| 2015-01-13 | 323-685-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LSAN DA 05 | CA |
| 2015-01-09 | 323-676-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LSAN DA 08 | CA |
| 2015-01-08 | 323-696-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-01-08 | 323-776-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-01-08 | 323-781-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | 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.