219.220.252.0/23
Origin history for this exact network block.
| From | Until | Origin ASN | Name at start |
|---|---|---|---|
| 2026-07-23 | Current | AS4538 | China Education and Research Network Center |
219.220.252.0/23Origin history for this exact network block.
| From | Until | Origin ASN | Name at start |
|---|---|---|---|
| 2026-07-23 | Current | AS4538 | China Education and Research Network Center |