DNSWHOIS.INFO - 23.4.111.166.in-addr.arpa
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23.4.111.166.in-addr.arpa checked at 2025-10-30T03:49:23.308Z 1210ms 16/16/16 100% R:1123.4.111.166.in-addr.arpa
| PTR | mail.cic.tsinghua.edu.cn | ||||||
| A | 166.111.4.23🇨🇳 ERX-CERNET-BKB | ||||||
| PTR | mail.cic.tsinghua.edu.cn | ||||||
4.111.166.in-addr.arpa
| NS | dns.cic.tsinghua.edu.cn | ||||||
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