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 |
|---|---|---|---|---|---|---|---|
| 2007-04-30 | 323-836-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | LSAN DA 14 | CA |
| 2007-04-30 | 323-836-2XXX | 2000–2999 | Assigned | METROPCS NETWORKS, LLC | 899D | LSAN DA 14 | CA |
| 2007-04-30 | 323-836-3XXX | 3000–3999 | Assigned | METROPCS NETWORKS, LLC | 899D | LSAN DA 14 | CA |
| 2007-04-30 | 323-836-4XXX | 4000–4999 | Assigned | METROPCS NETWORKS, LLC | 899D | LSAN DA 14 | CA |
| 2007-04-30 | 323-836-5XXX | 5000–5999 | Assigned | METROPCS NETWORKS, LLC | 899D | LSAN DA 14 | CA |
| 2007-04-30 | 323-836-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | LSAN DA 14 | CA |
| 2007-04-30 | 323-836-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | LSAN DA 14 | CA |
| 2007-04-30 | 323-873-3XXX | 3000–3999 | Assigned | METROPCS NETWORKS, LLC | 899D | LSAN DA 14 | CA |
| 2007-04-30 | 323-873-4XXX | 4000–4999 | Assigned | METROPCS NETWORKS, LLC | 899D | LSAN DA 14 | CA |
| 2007-04-30 | 323-873-5XXX | 5000–5999 | Assigned | METROPCS NETWORKS, LLC | 899D | LSAN DA 14 | CA |
| 2007-04-25 | 323-455-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2007-04-25 | 323-455-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2007-04-19 | 323-518-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2007-04-19 | 323-518-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2007-04-19 | 323-518-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2007-04-18 | 323-545-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 12 | CA |
| 2007-04-16 | 323-649-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2007-04-16 | 323-649-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 11 | CA |
| 2007-04-13 | 323-303-5XXX | 5000–5999 | Assigned | CURATEL, LLC - CA | 993B | MONTEBELLO | CA |
| 2007-04-13 | 323-325-0XXX | 0000–0999 | Assigned | CURATEL, LLC - CA | 993B | LSAN DA 08 | CA |
| 2007-04-13 | 323-475-4XXX | 4000–4999 | Assigned | CURATEL, LLC - CA | 993B | LSAN DA 05 | CA |
| 2007-04-13 | 323-568-0XXX | 0000–0999 | Assigned | CURATEL, LLC - CA | 993B | LSAN DA 06 | CA |
| 2007-04-13 | 323-577-0XXX | 0000–0999 | Assigned | CURATEL, LLC - CA | 993B | LSAN DA 04 | CA |
| 2007-04-13 | 323-698-0XXX | 0000–0999 | Assigned | CURATEL, LLC - CA | 993B | LSAN DA 14 | CA |
| 2007-04-13 | 323-747-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2007-04-13 | 323-747-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2007-04-13 | 323-747-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2007-04-13 | 323-747-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2007-04-13 | 323-795-7XXX | 7000–7999 | Assigned | CURATEL, LLC - CA | 993B | LSAN DA 11 | CA |
| 2007-04-13 | 323-903-3XXX | 3000–3999 | Assigned | CURATEL, LLC - CA | 993B | LSAN DA 12 | CA |
| 2007-04-13 | 323-920-2XXX | 2000–2999 | Assigned | CURATEL, LLC - CA | 993B | LSAN DA 09 | CA |
| 2007-04-11 | 323-303-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MONTEBELLO | CA |
| 2007-04-11 | 323-303-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MONTEBELLO | CA |
| 2007-04-11 | 323-303-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MONTEBELLO | CA |
| 2007-04-06 | 323-570-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2007-04-05 | 323-439-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | MONTEBELLO | CA |
| 2007-04-05 | 323-439-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | MONTEBELLO | CA |
| 2007-04-05 | 323-439-2XXX | 2000–2999 | Assigned | METROPCS NETWORKS, LLC | 899D | MONTEBELLO | CA |
| 2007-04-05 | 323-439-3XXX | 3000–3999 | Assigned | METROPCS NETWORKS, LLC | 899D | MONTEBELLO | CA |
| 2007-04-05 | 323-439-4XXX | 4000–4999 | Assigned | METROPCS NETWORKS, LLC | 899D | MONTEBELLO | CA |
| 2007-04-05 | 323-439-5XXX | 5000–5999 | Assigned | METROPCS NETWORKS, LLC | 899D | MONTEBELLO | CA |
| 2007-04-05 | 323-439-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | MONTEBELLO | CA |
| 2007-04-05 | 323-439-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | MONTEBELLO | CA |
| 2007-04-05 | 323-439-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MONTEBELLO | CA |
| 2007-04-05 | 323-439-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MONTEBELLO | CA |
| 2007-03-30 | 323-284-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 02 | CA |
| 2007-03-30 | 323-345-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 02 | CA |
| 2007-03-28 | 323-399-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | MONTEBELLO | CA |
| 2007-03-28 | 323-399-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | MONTEBELLO | CA |
| 2007-03-28 | 323-399-2XXX | 2000–2999 | Assigned | METROPCS NETWORKS, LLC | 899D | MONTEBELLO | 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.