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
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 |
|---|---|---|---|---|---|---|---|
| 2015-04-02 | 323-561-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LSAN DA 03 | CA |
| 2015-04-01 | 323-321-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | LSAN DA 09 | CA |
| 2015-04-01 | 323-433-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | LSAN DA 13 | CA |
| 2015-04-01 | 323-553-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LSAN DA 06 | CA |
| 2015-04-01 | 323-639-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | LSAN DA 11 | CA |
| 2015-04-01 | 323-676-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | LSAN DA 08 | CA |
| 2015-03-30 | 323-360-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | LSAN DA 05 | CA |
| 2015-03-26 | 323-318-3XXX | 3000–3999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | LSAN DA 05 | CA |
| 2015-03-20 | 323-200-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 12 | CA |
| 2015-03-20 | 323-296-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 12 | CA |
| 2015-03-20 | 323-508-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 12 | CA |
| 2015-03-20 | 323-740-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 11 | CA |
| 2015-03-20 | 323-740-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 11 | CA |
| 2015-03-20 | 323-902-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 11 | CA |
| 2015-03-20 | 323-902-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 11 | CA |
| 2015-03-20 | 323-989-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 11 | CA |
| 2015-03-17 | 323-794-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | LSAN DA 14 | CA |
| 2015-03-17 | 323-794-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | LSAN DA 14 | CA |
| 2015-03-16 | 323-433-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 13 | CA |
| 2015-03-13 | 323-847-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LSAN DA 13 | CA |
| 2015-03-10 | 323-894-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | LSAN DA 06 | CA |
| 2015-03-10 | 323-894-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | LSAN DA 06 | CA |
| 2015-03-10 | 323-894-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | LSAN DA 06 | CA |
| 2015-03-09 | 323-847-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 13 | CA |
| 2015-03-09 | 323-847-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 13 | CA |
| 2015-03-09 | 323-847-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 13 | CA |
| 2015-03-09 | 323-847-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 13 | CA |
| 2015-03-06 | 323-704-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2015-03-06 | 323-704-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2015-03-06 | 323-704-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2015-03-06 | 323-768-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2015-03-06 | 323-768-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2015-03-06 | 323-768-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2015-03-06 | 323-768-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2015-03-06 | 323-768-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2015-03-06 | 323-768-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2015-03-06 | 323-768-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2015-03-04 | 323-307-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 05 | CA |
| 2015-03-04 | 323-508-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 12 | CA |
| 2015-03-04 | 323-508-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 12 | CA |
| 2015-03-04 | 323-596-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 12 | CA |
| 2015-03-04 | 323-601-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 12 | CA |
| 2015-03-04 | 323-792-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 12 | CA |
| 2015-03-04 | 323-794-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 14 | CA |
| 2015-03-04 | 323-815-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 12 | CA |
| 2015-03-04 | 323-815-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 12 | CA |
| 2015-03-03 | 323-330-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 13 | CA |
| 2015-03-03 | 323-617-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 13 | CA |
| 2015-03-03 | 323-987-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LSAN DA 04 | CA |
| 2015-02-27 | 323-208-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | 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.