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 234
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-03-12 | 234-412-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | NO JACKSON | OH |
| 2024-03-12 | 234-416-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | HIRAM | OH |
| 2024-03-11 | 234-359-0XXX | 0000–0999 | Assigned | CSC VOICE, LLC | 612K | AURORA | OH |
| 2024-03-11 | 234-934-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | GARRETTSVL | OH |
| 2022-04-25 | 234-353-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | PARIS | OH |
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.