MXLIST.NET - penguin.iis.u-tokyo.ac.jp
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penguin.iis.u-tokyo.ac.jp checked at 2025-10-24T22:52:02.638Z 412ms 61/61/61 100% R:22penguin.iis.u-tokyo.ac.jp
| MX | ironport1.iis.u-tokyo.ac.jp | ||||||
| A | 157.82.144.166🇯🇵 UTnet | ||||||
| PTR | ironport1.iis.u-tokyo.ac.jp | ||||||
| MX | ironport2.iis.u-tokyo.ac.jp | ||||||
| A | 157.82.144.167🇯🇵 UTnet | ||||||
| PTR | ironport2.iis.u-tokyo.ac.jp | ||||||
| A | 2404:d540:1:8200:157:82:144:140 🇯🇵 UTnet | ||||||
| A | 157.82.144.140🇯🇵 UTnet | ||||||
| PTR | penguin.iis.u-tokyo.ac.jp | ||||||
iis.u-tokyo.ac.jp
| MX | ironport1.iis.u-tokyo.ac.jp | ||||||
| MX | ironport2.iis.u-tokyo.ac.jp | ||||||
| NS | penguin.iis.u-tokyo.ac.jp | ||||||
| NS | dns1.nc.u-tokyo.ac.jp | ||||||
| NS | dns2.nc.u-tokyo.ac.jp | ||||||
| NS | dns3.nc.u-tokyo.ac.jp | ||||||
| A | 157.82.144.140🇯🇵 UTnet | ||||||
PTR for
NS for
Starts with same word
Starts similarily
AI analysis
penguin.iis.u-tokyo.ac.jp serves as a name server for 64.156.82.157.in-addr.arpa, 142.82.157.in-addr.arpa, 148.82.157.in-addr.arpa, 163.82.157.in-addr.arpa, 156.82.157.in-addr.arpa and a few other domains.
dns1.nc.u-tokyo.ac.jp, dns2.nc.u-tokyo.ac.jp and dns3.nc.u-tokyo.ac.jp are commonly used as name servers together with penguin.iis.u-tokyo.ac.jp.
penguin.iis.u-tokyo.ac.jp points to two IP numbers: 2404:d540:1:8200:157:82:144:140 and 157.82.144.140.
Other host names, for instance iis.u-tokyo.ac.jp share IP numbers with penguin.iis.u-tokyo.ac.jp.
penguin.iis.u-tokyo.ac.jp is handled by two mail servers: ironport1.iis.u-tokyo.ac.jp and ironport2.iis.u-tokyo.ac.jp.
The mail server setup for penguin.iis.u-tokyo.ac.jp matches that of other domains, for instance dhcp-156-27.iis.u-tokyo.ac.jp, cvl.iis.u-tokyo.ac.jp, dhcp-148-141.iis.u-tokyo.ac.jp, dhcp-148-139.iis.u-tokyo.ac.jp and dhcp-148-186.iis.u-tokyo.ac.jp.
penguin.iis.u-tokyo.ac.jp shares at least partially some mail servers with other domains, including dhcp-160-158.iis.u-tokyo.ac.jp, dhcp-164-187.iis.u-tokyo.ac.jp, chibagw.iis.u-tokyo.ac.jp, dhcp-148-214.iis.u-tokyo.ac.jp and dhcp-148-194.iis.u-tokyo.ac.jp.
Host names with a single IP:
ironport1.iis.u-tokyo.ac.jp points to 157.82.144.166.
ironport2.iis.u-tokyo.ac.jp points to 157.82.144.167.