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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Apr 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2015-06-03 | 323-679-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | LSAN DA 09 | CA |
| 2015-06-03 | 323-975-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-06-03 | 323-975-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-06-03 | 323-975-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-06-03 | 323-975-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-06-03 | 323-977-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | LSAN DA 09 | CA |
| 2015-06-02 | 323-685-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2015-06-02 | 323-723-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2015-06-02 | 323-723-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2015-06-02 | 323-723-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2015-06-02 | 323-723-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2015-06-02 | 323-723-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2015-05-26 | 323-531-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-05-26 | 323-531-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-05-26 | 323-772-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-05-26 | 323-772-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-05-26 | 323-772-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-05-26 | 323-834-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-05-26 | 323-834-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-05-26 | 323-834-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2015-05-21 | 323-688-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LSAN DA 14 | CA |
| 2015-05-13 | 323-749-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LSAN DA 06 | CA |
| 2015-05-05 | 323-690-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2015-05-05 | 323-690-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2015-05-05 | 323-690-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2015-05-05 | 323-690-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2015-05-05 | 323-690-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2015-05-05 | 323-690-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2015-05-05 | 323-690-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2015-05-05 | 323-690-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2015-04-28 | 323-797-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MONTEBELLO | CA |
| 2015-04-28 | 323-797-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MONTEBELLO | CA |
| 2015-04-28 | 323-926-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | MONTEBELLO | CA |
| 2015-04-28 | 323-926-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | MONTEBELLO | CA |
| 2015-04-28 | 323-926-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | MONTEBELLO | CA |
| 2015-04-22 | 323-405-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | LSAN DA 04 | CA |
| 2015-04-22 | 323-676-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LSAN DA 08 | CA |
| 2015-04-13 | 323-593-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | LSAN DA 02 | CA |
| 2015-04-13 | 323-975-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-04-13 | 323-975-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-04-13 | 323-975-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-04-08 | 323-561-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-04-08 | 323-561-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-04-08 | 323-561-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2015-04-08 | 323-794-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 14 | CA |
| 2015-04-08 | 323-794-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 14 | CA |
| 2015-04-08 | 323-794-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 14 | CA |
| 2015-04-08 | 323-794-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 14 | CA |
| 2015-04-06 | 323-794-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | LSAN DA 14 | CA |
| 2015-04-02 | 323-329-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | LSAN DA 12 | 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.