NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/23/2026
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 458
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-12-17 | 458-308-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | PENDLETON | OR |
| 2025-12-17 | 458-308-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | PENDLETON | OR |
| 2025-12-10 | 458-276-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ONTARIO | OR |
| 2025-12-10 | 458-281-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2025-12-10 | 458-337-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2025-12-10 | 458-338-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2025-12-10 | 458-347-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2025-12-03 | 458-308-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | PENDLETON | OR |
| 2025-12-03 | 458-359-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MILTONFWTR | OR |
| 2025-11-26 | 458-319-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | JUNCTIONCY | OR |
| 2025-11-24 | 458-343-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2025-11-24 | 458-343-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2025-11-24 | 458-343-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2025-11-24 | 458-343-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2025-11-24 | 458-343-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2025-11-06 | 458-357-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MADRAS | OR |
| 2025-10-24 | 458-272-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CORVALLIS | OR |
| 2025-10-24 | 458-307-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CORVALLIS | OR |
| 2025-10-24 | 458-347-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2025-10-24 | 458-347-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2025-10-24 | 458-347-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2025-09-19 | 458-347-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2025-09-19 | 458-347-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2025-06-26 | 458-281-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2025-06-26 | 458-281-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2025-06-26 | 458-322-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2025-06-26 | 458-347-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2025-05-06 | 458-322-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2025-03-21 | 458-306-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | PORTORFORD | OR |
| 2025-03-21 | 458-324-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | GOLD BEACH | OR |
| 2025-03-21 | 458-345-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ENTERPRISE | OR |
| 2025-03-21 | 458-723-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BURNS | OR |
| 2025-03-21 | 458-787-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | HEPPNER | OR |
| 2025-02-05 | 458-329-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2024-10-23 | 458-276-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ONTARIO | OR |
| 2024-09-13 | 458-329-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2024-09-13 | 458-329-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2024-09-13 | 458-329-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2024-08-19 | 458-322-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2024-08-19 | 458-322-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2024-07-16 | 458-800-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MADRAS | OR |
| 2024-06-25 | 458-329-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2024-06-25 | 458-329-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BEND | OR |
| 2024-05-01 | 458-901-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | COOS BAY | OR |
| 2024-03-28 | 458-278-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2024-03-28 | 458-322-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ALBANY | OR |
| 2024-01-19 | 458-273-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | EUGENE | OR |
| 2024-01-19 | 458-290-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | KLAMATHFLS | OR |
| 2024-01-19 | 458-299-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | MEDFORD | OR |
| 2024-01-19 | 458-310-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ROSEBURG | OR |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.