219.220.240.0/21
Origin history for this exact network block.
| From | Until | Origin ASN | Name at start |
|---|---|---|---|
| 2026-08-03 | Current | AS4538 | China Education and Research Network Center |
219.220.240.0/21Origin history for this exact network block.
| From | Until | Origin ASN | Name at start |
|---|---|---|---|
| 2026-08-03 | Current | AS4538 | China Education and Research Network Center |