NumberResearchRecent thousands-block assignments
0 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, all time — NPA 425
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-12-19 | 425-995-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | EVERETT | WA |
| 2025-08-05 | 425-949-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BOTHELL | WA |
| 2025-07-03 | 425-651-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ISSAQUAH | WA |
| 2025-06-20 | 425-966-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SNOQUMPASS | WA |
| 2025-06-17 | 425-464-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FALL CITY | WA |
| 2024-12-03 | 425-902-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | RENTON | WA |
| 2024-12-03 | 425-949-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BOTHELL | WA |
| 2024-05-30 | 425-777-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BELLEVUE | WA |
| 2023-10-17 | 425-550-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HALLS LAKE | WA |
| 2020-12-30 | 425-390-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | RENTON | WA |
| 2020-12-30 | 425-660-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MAPLE VLY | WA |
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.