218.193.32.4 (ymail.lyun.edu.cn)
| Announced By | ||
|---|---|---|
| Origin AS | Announcement | Description |
| AS4538 | 218.192.0.0/13  | China Education and Research Network Center |
| AS4538 | 218.193.0.0/17  | China Education and Research Network Center |
| AS4538 | 218.193.32.0/21 | China Education and Research Network Center |
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