NumberResearchRecent thousands-block assignments
35 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 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 |
|---|---|---|---|---|---|---|---|
| 2006-02-28 | 925-415-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BSHP RNCH | CA |
| 2006-02-21 | 925-435-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | CONCORD | CA |
| 2006-02-21 | 925-435-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | CONCORD | CA |
| 2006-02-21 | 925-521-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | CONCORD | CA |
| 2006-02-20 | 925-949-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | WALNUT CRK | CA |
| 2006-02-10 | 925-871-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | LAFAYETTE | CA |
| 2006-02-01 | 925-658-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | WALNUT CRK | CA |
| 2006-01-15 | 925-695-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | CONCORD | CA |
| 2006-01-11 | 925-818-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WALNUT CRK | CA |
| 2006-01-11 | 925-818-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WALNUT CRK | CA |
| 2006-01-11 | 925-818-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WALNUT CRK | CA |
| 2006-01-11 | 925-818-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WALNUT CRK | CA |
| 2006-01-11 | 925-978-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANTIOCH | CA |
| 2006-01-05 | 925-305-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | CONCORD | CA |
| 2005-12-28 | 925-354-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANTIOCH | CA |
| 2005-12-28 | 925-354-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANTIOCH | CA |
| 2005-12-21 | 925-965-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | PLEASANTON | CA |
| 2005-12-14 | 925-337-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LIVERMORE | CA |
| 2005-12-13 | 925-605-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | LIVERMORE | CA |
| 2005-12-13 | 925-663-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SUNOL | CA |
| 2005-12-13 | 925-665-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | PITTSBURG | CA |
| 2005-12-13 | 925-666-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | ECONTRCOST | CA |
| 2005-12-13 | 925-888-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | MORAGA | CA |
| 2005-12-13 | 925-889-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | CLAYTON | CA |
| 2005-12-13 | 925-905-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | DUBLN-SNRM | CA |
| 2005-12-07 | 925-291-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PSBG WEST | CA |
| 2005-12-06 | 925-818-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WALNUT CRK | CA |
| 2005-12-06 | 925-922-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | PLEASANTON | CA |
| 2005-11-30 | 925-304-5XXX | 5000–5999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | CLAYTON | CA |
| 2005-11-30 | 925-395-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | WALNUT CRK | CA |
| 2005-11-23 | 925-231-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MARTINEZ | CA |
| 2005-11-21 | 925-354-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2005-11-18 | 925-246-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CONCORD | CA |
| 2005-11-18 | 925-348-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CONCORD | CA |
| 2005-11-11 | 925-247-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | MORAGA | CA |
| 2005-11-11 | 925-522-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANTIOCH | CA |
| 2005-11-11 | 925-818-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WALNUT CRK | CA |
| 2005-10-28 | 925-308-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ECONTRCOST | CA |
| 2005-10-28 | 925-392-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ECONTRCOST | CA |
| 2005-10-27 | 925-664-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | PSBG WEST | CA |
| 2005-10-13 | 925-305-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | CONCORD | CA |
| 2005-10-12 | 925-270-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CONCORD | CA |
| 2005-10-12 | 925-270-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CONCORD | CA |
| 2005-10-12 | 925-588-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | WALNUT CRK | CA |
| 2005-10-12 | 925-588-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | WALNUT CRK | CA |
| 2005-10-07 | 925-885-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | ORINDA | CA |
| 2005-09-20 | 925-719-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | DUBLN-SNRM | CA |
| 2005-09-20 | 925-813-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANTIOCH | CA |
| 2005-09-08 | 925-451-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WALNUT CRK | CA |
| 2005-08-31 | 925-794-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MORAGA | 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.