NumberResearchRecent thousands-block assignments
35 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 925
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 |
|---|---|---|---|---|---|---|---|
| 2007-06-14 | 925-667-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LIVERMORE | CA |
| 2007-05-15 | 925-478-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | WALNUT CRK | CA |
| 2007-04-27 | 925-219-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2007-04-11 | 925-270-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CONCORD | CA |
| 2007-04-10 | 925-226-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | PLEASANTON | CA |
| 2007-04-10 | 925-230-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | DUBLN-SNRM | CA |
| 2007-04-10 | 925-293-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | MARTINEZ | CA |
| 2007-04-10 | 925-309-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | DANVILLE | CA |
| 2007-04-10 | 925-310-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | LAFAYETTE | CA |
| 2007-04-10 | 925-359-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | BSHP RNCH | CA |
| 2007-04-10 | 925-566-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | CONCORD | CA |
| 2007-04-10 | 925-567-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | CLAYTON | CA |
| 2007-04-10 | 925-667-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | LIVERMORE | CA |
| 2007-04-10 | 925-951-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | WALNUT CRK | CA |
| 2007-04-06 | 925-482-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WALNUT CRK | CA |
| 2007-04-06 | 925-588-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WALNUT CRK | CA |
| 2007-04-05 | 925-684-4XXX | 4000–4999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | ECONTRCOST | CA |
| 2007-04-04 | 925-399-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | PLEASANTON | CA |
| 2007-03-30 | 925-309-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | DANVILLE | CA |
| 2007-03-23 | 925-523-3XXX | 3000–3999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | PLEASANTON | CA |
| 2007-03-22 | 925-978-9XXX | 9000–9999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | ANTIOCH | CA |
| 2007-03-13 | 925-626-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ECONTRCOST | CA |
| 2007-03-12 | 925-235-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | MORAGA | CA |
| 2007-03-12 | 925-307-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | DUBLN-SNRM | CA |
| 2007-03-12 | 925-315-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LIVERMORE | CA |
| 2007-03-12 | 925-478-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | WALNUT CRK | CA |
| 2007-03-12 | 925-478-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | WALNUT CRK | CA |
| 2007-02-27 | 925-302-7XXX | 7000–7999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | BSHP RNCH | CA |
| 2007-02-26 | 925-957-6XXX | 6000–6999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | MARTINEZ | CA |
| 2007-02-23 | 925-271-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PLEASANTON | CA |
| 2007-02-23 | 925-271-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PLEASANTON | CA |
| 2007-02-23 | 925-303-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2007-02-01 | 925-237-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ANTIOCH | CA |
| 2007-02-01 | 925-241-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DUBLN-SNRM | CA |
| 2007-02-01 | 925-282-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LAFAYETTE | CA |
| 2007-01-23 | 925-984-2XXX | 2000–2999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | DANVILLE | CA |
| 2007-01-23 | 925-999-8XXX | 8000–8999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | DUBLN-SNRM | CA |
| 2007-01-23 | 925-999-9XXX | 9000–9999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | DUBLN-SNRM | CA |
| 2007-01-22 | 925-852-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | CONCORD | CA |
| 2007-01-22 | 925-852-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | CONCORD | CA |
| 2007-01-16 | 925-402-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ORINDA | CA |
| 2007-01-12 | 925-817-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | WALNUT CRK | CA |
| 2007-01-08 | 925-978-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANTIOCH | CA |
| 2007-01-08 | 925-978-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANTIOCH | CA |
| 2006-12-28 | 925-808-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | CONCORD | CA |
| 2006-12-27 | 925-954-7XXX | 7000–7999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | WALNUT CRK | CA |
| 2006-12-27 | 925-954-8XXX | 8000–8999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | WALNUT CRK | CA |
| 2006-12-14 | 925-667-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LIVERMORE | CA |
| 2006-12-14 | 925-719-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | DUBLN-SNRM | CA |
| 2006-12-14 | 925-849-4XXX | 4000–4999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | CONCORD | 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.