NumberResearchRecent thousands-block assignments
0 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, all time — NPA 442
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-08-20 | 442-502-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | VICTORVL | CA |
| 2026-08-20 | 442-502-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | VICTORVL | CA |
| 2026-08-20 | 442-502-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | VICTORVL | CA |
| 2026-05-19 | 442-445-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BISHOP | CA |
| 2026-01-16 | 442-496-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-12-17 | 442-494-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-12-17 | 442-494-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-12-17 | 442-494-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-12-17 | 442-494-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-10-30 | 442-373-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-10-30 | 442-494-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-10-30 | 442-494-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-10-30 | 442-494-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-10-30 | 442-866-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-10-17 | 442-428-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | VTVL HSPR | CA |
| 2025-10-17 | 442-493-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | VTVL HSPR | CA |
| 2025-09-19 | 442-442-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-09-19 | 442-442-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-09-19 | 442-489-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-09-19 | 442-489-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-09-12 | 442-472-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SAN MARCOS | CA |
| 2025-08-20 | 442-489-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-08-20 | 442-489-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-08-20 | 442-489-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-08-20 | 442-489-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-08-20 | 442-489-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-08-20 | 442-489-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-05-07 | 442-473-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | VTVL HSPR | CA |
| 2025-05-07 | 442-473-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | VTVL HSPR | CA |
| 2025-05-07 | 442-473-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | VTVL HSPR | CA |
| 2025-02-19 | 442-470-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | PALMDESERT | CA |
| 2025-02-05 | 442-378-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | FALLBROOK | CA |
| 2025-02-05 | 442-399-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | EL MIRAGE | CA |
| 2024-11-13 | 442-452-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | VALLEY CTR | CA |
| 2024-11-08 | 442-442-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2024-10-23 | 442-399-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | EL MIRAGE | CA |
| 2024-10-09 | 442-474-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-10-09 | 442-474-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-10-09 | 442-474-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-10-09 | 442-474-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-10-09 | 442-474-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-10-09 | 442-474-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-10-09 | 442-478-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-10-09 | 442-899-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | WARNER SPG | CA |
| 2024-09-13 | 442-473-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | VTVL HSPR | CA |
| 2024-09-13 | 442-473-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | VTVL HSPR | CA |
| 2024-09-13 | 442-473-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | VTVL HSPR | CA |
| 2024-09-13 | 442-473-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | VTVL HSPR | CA |
| 2024-09-13 | 442-474-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-09-13 | 442-474-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | 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.