CF1760765941147-tsm20251017082432

WWW.RTSAK.COM - 21.11.133.in-addr.arpa

Search for IP or hostnames:

21.11.133.in-addr.arpa checked at 2025-10-18T05:39:01.126Z 1037ms 77/77/77 100% R:17

21.11.133.in-addr.arpa

NSdns1.nc.u-tokyo.ac.jp
A2001:200:180::35:1 πŸ‡―πŸ‡΅ WIDE Project
PTRdns1.nc.u-tokyo.ac.jp
A133.11.0.1πŸ‡―πŸ‡΅ UTnet
PTRdns1.nc.u-tokyo.ac.jp
NSdns2.nc.u-tokyo.ac.jp
A2001:2c0:ce07:f900::2 πŸ‡―πŸ‡΅ NTT PC Communications (InfoSphere)
A119.245.132.49πŸ‡―πŸ‡΅ NTT PC Communications (InfoSphere)
NSdns3.nc.u-tokyo.ac.jp
A2001:200:180::35:3 πŸ‡―πŸ‡΅ WIDE Project
PTRdns3.nc.u-tokyo.ac.jp
A157.82.0.1πŸ‡―πŸ‡΅ UTnet
PTRdns3.nc.u-tokyo.ac.jp
NSns1.s.u-tokyo.ac.jp
A2001:200:180:1103::11 πŸ‡―πŸ‡΅ WIDE Project
PTRns1.s.u-tokyo.ac.jp
A133.11.11.11πŸ‡―πŸ‡΅ UTnet
PTRns1.s.u-tokyo.ac.jp
NSns2.s.u-tokyo.ac.jp
A2406:da14:c5c:ba02:1822:ce39:2a02:fbd7 πŸ‡―πŸ‡΅ Amazon
A3.114.219.198πŸ‡―πŸ‡΅ Amazon
PTRec2-3-114-219-198.ap-northeast-1.compute.amazonaws.com

11.133.in-addr.arpa

NSdns1.nc.u-tokyo.ac.jp
NSdns2.nc.u-tokyo.ac.jp
NSdns3.nc.u-tokyo.ac.jp

Up

Starts with same word

Starts similarily

AI analysis

21.11.133.in-addr.arpa is the parent of 30.21.11.133.in-addr.arpa, 40.21.11.133.in-addr.arpa, 7.21.11.133.in-addr.arpa, 8.21.11.133.in-addr.arpa, 9.21.11.133.in-addr.arpa and a few other host names.

21.11.133.in-addr.arpa is delegated to five name servers: dns1.nc.u-tokyo.ac.jp, dns2.nc.u-tokyo.ac.jp, dns3.nc.u-tokyo.ac.jp, ns1.s.u-tokyo.ac.jp and ns2.s.u-tokyo.ac.jp.

21.11.133.in-addr.arpa at least partially shares name servers with other domains, for instance 98.82.157.in-addr.arpa, 220.11.133.in-addr.arpa, 201.11.133.in-addr.arpa, 205.11.133.in-addr.arpa and anesc.u-tokyo.ac.jp.

These name servers are commonly used with the following name servers: ns1.t.u-tokyo.ac.jp, ns.a.u-tokyo.ac.jp, dns101.ecc.u-tokyo.ac.jp, dns.ecc.u-tokyo.ac.jp, penguin.iis.u-tokyo.ac.jp, ns-e6.keisu.t.u-tokyo.ac.jp, ns.icepp.s.u-tokyo.ac.jp, ns2.t.u-tokyo.ac.jp, ns.rcast.u-tokyo.ac.jp and i-ns.i.u-tokyo.ac.jp.

Host names with two IP numbers:

dns1.nc.u-tokyo.ac.jp points to 2001:200:180::35:1 and 133.11.0.1

dns2.nc.u-tokyo.ac.jp points to 2001:2c0:ce07:f900::2 and 119.245.132.49

dns3.nc.u-tokyo.ac.jp points to 2001:200:180::35:3 and 157.82.0.1

ns1.s.u-tokyo.ac.jp points to 2001:200:180:1103::11 and 133.11.11.11

ns2.s.u-tokyo.ac.jp points to 2406:da14:c5c:ba02:1822:ce39:2a02:fbd7 and 3.114.219.198

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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jFHYWLF CF johedugfp 2025-10-18