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 |
|---|---|---|---|---|---|---|---|
| 2024-04-12 | 925-878-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LAFAYETTE | CA |
| 2024-04-12 | 925-887-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CONCORD | CA |
| 2024-03-20 | 925-809-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ECONTRCOST | CA |
| 2024-03-06 | 925-844-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CLAYTON | CA |
| 2024-02-29 | 925-319-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SUNOL | CA |
| 2024-01-26 | 925-205-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | DANVILLE | CA |
| 2024-01-23 | 925-508-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | ECONTRCOST | CA |
| 2024-01-23 | 925-508-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | ECONTRCOST | CA |
| 2024-01-23 | 925-508-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | ECONTRCOST | CA |
| 2024-01-19 | 925-491-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2024-01-19 | 925-538-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2024-01-19 | 925-538-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2024-01-19 | 925-538-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2024-01-19 | 925-538-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2024-01-19 | 925-538-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2024-01-19 | 925-538-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2024-01-19 | 925-538-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2024-01-19 | 925-922-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PLEASANTON | CA |
| 2024-01-18 | 925-504-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | PSBG WEST | CA |
| 2024-01-17 | 925-995-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CONCORD | CA |
| 2024-01-17 | 925-995-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CONCORD | CA |
| 2024-01-16 | 925-535-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PLEASANTON | CA |
| 2024-01-11 | 925-844-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CLAYTON | CA |
| 2024-01-04 | 925-995-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CONCORD | CA |
| 2024-01-04 | 925-995-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CONCORD | CA |
| 2024-01-04 | 925-995-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CONCORD | CA |
| 2023-12-29 | 925-205-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | DANVILLE | CA |
| 2023-12-29 | 925-205-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | DANVILLE | CA |
| 2023-12-29 | 925-205-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | DANVILLE | CA |
| 2023-12-29 | 925-205-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | DANVILLE | CA |
| 2023-12-29 | 925-205-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | DANVILLE | CA |
| 2023-12-29 | 925-220-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | PITTSBURG | CA |
| 2023-12-29 | 925-220-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | PITTSBURG | CA |
| 2023-12-29 | 925-220-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | PITTSBURG | CA |
| 2023-12-29 | 925-220-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | PITTSBURG | CA |
| 2023-12-29 | 925-342-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | WALNUT CRK | CA |
| 2023-12-29 | 925-342-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | WALNUT CRK | CA |
| 2023-12-29 | 925-352-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | PLEASANTON | CA |
| 2023-12-29 | 925-353-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | PLEASANTON | CA |
| 2023-12-29 | 925-366-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | PLEASANTON | CA |
| 2023-12-29 | 925-398-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | PLEASANTON | CA |
| 2023-12-29 | 925-419-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | CONCORD | CA |
| 2023-12-29 | 925-419-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | CONCORD | CA |
| 2023-12-29 | 925-514-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | MARTINEZ | CA |
| 2023-12-29 | 925-514-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | MARTINEZ | CA |
| 2023-12-29 | 925-514-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | MARTINEZ | CA |
| 2023-12-05 | 925-491-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2023-12-05 | 925-491-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2023-12-05 | 925-491-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2023-12-05 | 925-491-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | 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.