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.
Most active assignees, all time — NPA 447
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-04-18 | 447-296-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MATTOON | IL |
| 2023-11-13 | 447-281-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | QUINCY | IL |
| 2022-03-15 | 447-207-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | FITHIAN | IL |
| 2022-03-15 | 447-244-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | GEORGETOWN | IL |
| 2022-03-15 | 447-445-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | INDIANOLA | IL |
| 2022-03-15 | 447-766-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | CATLIN | IL |
| 2022-03-15 | 447-783-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | RIDGE FARM | IL |
| 2022-03-14 | 447-216-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | DANVILLE | IL |
| 2022-03-14 | 447-867-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | WESTVILLE | IL |
| 2021-03-04 | 447-201-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | CHAMPAURBN | IL |
| 2021-03-04 | 447-202-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SPRINGFLD | IL |
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.