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 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 |
|---|---|---|---|---|---|---|---|
| 2026-09-17 | 925-591-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LIVERMORE | CA |
| 2026-08-20 | 925-651-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | WALNUT CRK | CA |
| 2026-08-20 | 925-651-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | WALNUT CRK | CA |
| 2026-08-04 | 925-582-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DUBLN-SNRM | CA |
| 2026-08-04 | 925-582-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DUBLN-SNRM | CA |
| 2026-04-03 | 925-546-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | WALNUT CRK | CA |
| 2026-04-03 | 925-891-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | WALNUT CRK | CA |
| 2026-03-18 | 925-331-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2026-03-18 | 925-554-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2026-03-18 | 925-554-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2026-03-18 | 925-554-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2026-01-06 | 925-441-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2026-01-06 | 925-554-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2026-01-06 | 925-554-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-11-13 | 925-545-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-11-13 | 925-545-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-11-13 | 925-545-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-10-03 | 925-545-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-10-03 | 925-545-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-10-03 | 925-545-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-06-25 | 925-491-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-06-25 | 925-537-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LIVERMORE | CA |
| 2025-06-25 | 925-545-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-06-25 | 925-545-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-06-25 | 925-545-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-05-07 | 925-544-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-05-07 | 925-544-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-05-07 | 925-544-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-05-07 | 925-544-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-03-28 | 925-539-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-03-28 | 925-539-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-03-28 | 925-539-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-03-28 | 925-539-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-03-28 | 925-539-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2025-03-21 | 925-658-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | WALNUT CRK | CA |
| 2024-10-09 | 925-537-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LIVERMORE | CA |
| 2024-10-09 | 925-537-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LIVERMORE | CA |
| 2024-10-09 | 925-537-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LIVERMORE | CA |
| 2024-09-06 | 925-505-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LIVERMORE | CA |
| 2024-09-06 | 925-505-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | LIVERMORE | CA |
| 2024-08-29 | 925-539-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2024-08-29 | 925-539-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2024-08-29 | 925-539-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2024-08-19 | 925-342-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | WALNUT CRK | CA |
| 2024-08-19 | 925-342-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | WALNUT CRK | CA |
| 2024-07-15 | 925-537-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LIVERMORE | CA |
| 2024-06-21 | 925-491-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2024-06-21 | 925-538-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2024-06-21 | 925-539-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2024-06-21 | 925-727-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTIOCH | 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.