163.21.0.0/19
Origin history for this exact network block.
| From | Until | Origin ASN | Name at start |
|---|---|---|---|
| 2026-11-06 | Current | AS17716 | National Taiwan University |
| 2026-11-02 | 2026-11-05 | AS17716 | National Taiwan University |
| 2026-10-30 | 2026-11-01 | AS17716 | National Taiwan University |
| 2026-08-25 | 2026-10-29 | AS17716 | National Taiwan University |
| 2026-06-13 | 2026-08-10 | AS17716 | National Taiwan University |