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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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-02-18 | 425-946-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | CARNATION | WA |
| 2022-01-10 | 425-832-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | ISSAQUAH | WA |
| 2022-01-07 | 425-842-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | NORTH BEND | WA |
| 2022-01-05 | 425-683-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | EVERETT | WA |
| 2022-01-04 | 425-569-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | MAPLE VLY | WA |
| 2021-06-09 | 425-537-9XXX | 9000–9999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | BOTHELL | WA |
| 2021-06-07 | 425-663-9XXX | 9000–9999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | RENTON | WA |
| 2021-05-26 | 425-587-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | KIRKLAND | WA |
| 2021-05-13 | 425-534-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | HALLS LAKE | WA |
| 2021-03-16 | 425-866-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | BELLEVUE | 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.