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.
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-05-02 | 567-457-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | TOLEDO | OH |
| 2023-11-09 | 567-425-3XXX | 3000–3999 | Assigned | NUSO, LLC | 732J | MANSFIELD | OH |
| 2023-11-09 | 567-425-4XXX | 4000–4999 | Assigned | NUSO, LLC | 732J | MANSFIELD | OH |
| 2023-04-19 | 567-392-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | LIMA | OH |
| 2023-02-21 | 567-396-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | HOLLAND | OH |
| 2023-02-10 | 567-394-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | MANSFIELD | OH |
| 2020-09-04 | 567-326-1XXX | 1000–1999 | Assigned | NUSO, LLC | 478J | TOLEDO | OH |
| 2012-11-30 | 567-315-1XXX | 1000–1999 | Assigned | NUSO, LLC | 551G | TOLEDO | OH |
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.