WWW.RTSAK.COM - 20.1.157.147.in-addr.arpa
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20.1.157.147.in-addr.arpa checked at 2025-11-07T21:40:36.609Z 518ms 16/16/16 100% R:1220.1.157.147.in-addr.arpa
| PTR | mailgw03.k.tsukuba-tech.ac.jp | ||||||
| A | 147.157.1.20🇯🇵 SINET-AS | ||||||
| PTR | mailgw03.k.tsukuba-tech.ac.jp | ||||||
1.157.147.in-addr.arpa
| NS | jainport.k.tsukuba-tech.ac.jp | ||||||
| NS | ns2.k.tsukuba-tech.ac.jp | ||||||
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