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
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-09-18 | 447-264-0XXX | 0000–0999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PAYSON | IL |
| 2025-09-18 | 447-271-0XXX | 0000–0999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LIBERTY | IL |
| 2025-09-16 | 447-206-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | COLUMBUS | IL |
| 2025-09-16 | 447-270-0XXX | 0000–0999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FOWLER | IL |
| 2025-07-08 | 447-315-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BEARDSTOWN | IL |
| 2024-08-13 | 447-267-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | OAKFORD | IL |
| 2024-05-03 | 447-783-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | RIDGE FARM | IL |
| 2023-09-04 | 447-427-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TALLULA | IL |
| 2023-09-04 | 447-445-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | INDIANOLA | IL |
| 2023-09-04 | 447-786-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HARRISTOWN | 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.