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 779
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-06-16 | 779-265-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MCHENRY | IL |
| 2026-04-28 | 779-780-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LOCKPORT | IL |
| 2025-12-12 | 779-431-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-11-25 | 779-436-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PLAINFIELD | IL |
| 2025-11-05 | 779-431-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-11-05 | 779-431-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-11-05 | 779-431-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-10-20 | 779-431-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-08-19 | 779-217-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-08-19 | 779-384-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | HARVARD | IL |
| 2025-08-19 | 779-422-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-08-19 | 779-422-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-08-19 | 779-431-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-07-21 | 779-422-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-07-21 | 779-422-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-07-21 | 779-422-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-05-07 | 779-422-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-05-07 | 779-422-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-05-07 | 779-422-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2025-01-13 | 779-978-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SANDWICH | IL |
| 2025-01-13 | 779-978-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SANDWICH | IL |
| 2025-01-07 | 779-388-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | CRYSTAL LK | IL |
| 2024-12-03 | 779-390-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LOCKPORT | IL |
| 2024-12-03 | 779-390-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LOCKPORT | IL |
| 2024-12-03 | 779-390-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LOCKPORT | IL |
| 2024-11-13 | 779-303-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | PLAINFIELD | IL |
| 2024-09-10 | 779-217-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2024-08-22 | 779-902-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2024-08-22 | 779-902-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2024-08-14 | 779-217-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2024-08-14 | 779-217-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2024-07-16 | 779-217-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2024-06-25 | 779-403-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MCHENRY | IL |
| 2024-06-25 | 779-403-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MCHENRY | IL |
| 2024-04-30 | 779-390-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | LOCKPORT | IL |
| 2024-04-30 | 779-390-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LOCKPORT | IL |
| 2024-03-27 | 779-390-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LOCKPORT | IL |
| 2024-03-27 | 779-390-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LOCKPORT | IL |
| 2024-02-08 | 779-386-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | PRINCETON | IL |
| 2024-02-08 | 779-386-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PRINCETON | IL |
| 2024-02-08 | 779-759-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SYCAMORE | IL |
| 2024-02-08 | 779-759-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SYCAMORE | IL |
| 2024-01-10 | 779-445-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LOCKPORT | IL |
| 2024-01-09 | 779-372-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | DIXON | IL |
| 2024-01-09 | 779-384-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | HARVARD | IL |
| 2024-01-08 | 779-809-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | FULTON | IL |
| 2024-01-08 | 779-809-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | FULTON | IL |
| 2024-01-04 | 779-217-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2024-01-04 | 779-217-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2024-01-04 | 779-381-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | LA SALLE | IL |
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.