NumberResearchRecent thousands-block assignments
1 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2005-08-24 | 323-419-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | LSAN DA 11 | CA |
| 2005-08-18 | 323-207-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 08 | CA |
| 2005-08-18 | 323-214-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 06 | CA |
| 2005-08-18 | 323-287-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 04 | CA |
| 2005-08-18 | 323-306-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 08 | CA |
| 2005-08-18 | 323-318-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 05 | CA |
| 2005-08-18 | 323-318-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 05 | CA |
| 2005-08-18 | 323-332-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 04 | CA |
| 2005-08-18 | 323-332-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 04 | CA |
| 2005-08-18 | 323-332-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 04 | CA |
| 2005-08-18 | 323-337-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 14 | CA |
| 2005-08-18 | 323-421-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 12 | CA |
| 2005-08-18 | 323-421-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 12 | CA |
| 2005-08-18 | 323-645-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 14 | CA |
| 2005-08-18 | 323-832-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | MONTEBELLO | CA |
| 2005-08-18 | 323-832-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | MONTEBELLO | CA |
| 2005-08-18 | 323-832-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MONTEBELLO | CA |
| 2005-08-18 | 323-837-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MONTEBELLO | CA |
| 2005-08-18 | 323-866-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 13 | CA |
| 2005-08-18 | 323-866-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 13 | CA |
| 2005-08-18 | 323-867-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MONTEBELLO | CA |
| 2005-08-18 | 323-998-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 11 | CA |
| 2005-08-18 | 323-998-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 11 | CA |
| 2005-08-17 | 323-515-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | LSAN DA 08 | CA |
| 2005-08-17 | 323-545-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | LSAN DA 12 | CA |
| 2005-08-17 | 323-774-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 06 | CA |
| 2005-08-17 | 323-774-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 06 | CA |
| 2005-08-17 | 323-774-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 06 | CA |
| 2005-08-17 | 323-774-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 06 | CA |
| 2005-08-17 | 323-774-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 06 | CA |
| 2005-08-17 | 323-774-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 06 | CA |
| 2005-08-16 | 323-274-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | LSAN DA 03 | CA |
| 2005-08-16 | 323-331-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | LSAN DA 02 | CA |
| 2005-08-16 | 323-352-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | LSAN DA 04 | CA |
| 2005-08-16 | 323-604-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | LSAN DA 05 | CA |
| 2005-08-16 | 323-622-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | MONTEBELLO | CA |
| 2005-08-16 | 323-767-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | MONTEBELLO | CA |
| 2005-08-16 | 323-837-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MONTEBELLO | CA |
| 2005-08-16 | 323-973-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | LSAN DA 06 | CA |
| 2005-08-16 | 323-973-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | LSAN DA 06 | CA |
| 2005-08-15 | 323-767-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MONTEBELLO | CA |
| 2005-08-15 | 323-767-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MONTEBELLO | CA |
| 2005-08-15 | 323-767-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MONTEBELLO | CA |
| 2005-08-04 | 323-200-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 12 | CA |
| 2005-08-03 | 323-215-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | MONTEBELLO | CA |
| 2005-08-03 | 323-241-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 09 | CA |
| 2005-08-03 | 323-318-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LSAN DA 05 | CA |
| 2005-08-03 | 323-617-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LSAN DA 13 | CA |
| 2005-08-03 | 323-617-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LSAN DA 13 | CA |
| 2005-08-03 | 323-622-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | MONTEBELLO | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.