NumberResearchRecent thousands-block assignments
2 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 562
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2003-05-23 | 562-239-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NORWALK | CA |
| 2003-05-23 | 562-318-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | WHITTIER | CA |
| 2003-05-23 | 562-318-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | WHITTIER | CA |
| 2003-05-23 | 562-318-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | WHITTIER | CA |
| 2003-05-23 | 562-318-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | WHITTIER | CA |
| 2003-05-23 | 562-318-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | WHITTIER | CA |
| 2003-05-12 | 562-215-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NORWALK | CA |
| 2003-05-12 | 562-215-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NORWALK | CA |
| 2003-05-12 | 562-215-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NORWALK | CA |
| 2003-05-12 | 562-215-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NORWALK | CA |
| 2003-05-08 | 562-304-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LONG BEACH | CA |
| 2003-05-08 | 562-304-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LONG BEACH | CA |
| 2003-05-08 | 562-304-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LONG BEACH | CA |
| 2003-05-08 | 562-304-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LONG BEACH | CA |
| 2003-04-04 | 562-753-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LONG BEACH | CA |
| 2003-04-02 | 562-328-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | WHITTIER | CA |
| 2003-04-02 | 562-328-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | WHITTIER | CA |
| 2003-04-02 | 562-842-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | PICORIVERA | CA |
| 2003-04-02 | 562-842-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PICORIVERA | CA |
| 2003-03-06 | 562-239-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NORWALK | CA |
| 2003-03-06 | 562-239-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NORWALK | CA |
| 2003-02-24 | 562-508-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LONG BEACH | CA |
| 2002-12-19 | 562-222-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PICORIVERA | CA |
| 2002-12-19 | 562-309-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | WHITTIER | CA |
| 2002-12-19 | 562-314-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ALAMITOS | CA |
| 2002-12-19 | 562-445-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | DOWNEY | CA |
| 2002-12-19 | 562-475-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LA HABRA | CA |
| 2002-11-07 | 562-607-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-07 | 562-607-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-07 | 562-607-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-07 | 562-607-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-07 | 562-607-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-06 | 562-256-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-06 | 562-256-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-06 | 562-256-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-06 | 562-257-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-06 | 562-276-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-06 | 562-276-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-06 | 562-276-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-06 | 562-277-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-06 | 562-277-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-06 | 562-277-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-06 | 562-290-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-06 | 562-394-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-06 | 562-394-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-06 | 562-394-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-06 | 562-394-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-06 | 562-453-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-06 | 562-499-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2002-11-06 | 562-552-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LONG BEACH | 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.