240a:a221::/32
Origin history for this exact network block.
| From | Until | Origin ASN | Name at start |
|---|---|---|---|
| 2026-10-03 | Current | AS4538 | China Education and Research Network Center |
| 2026-09-23 | 2026-09-28 | AS4538 | China Education and Research Network Center |
| 2026-09-09 | 2026-09-13 | AS4538 | China Education and Research Network Center |
| 2026-06-13 | 2026-08-27 | AS4538 | China Education and Research Network Center |
| 2026-06-13 | Current | AS143195 | China Education and Research Network (CERNET) |