Enter host name or IP address: 3 result(s) for 136.21.81.in-addr.arpa
namequery typeresultfirst seenlast seen
136.21.81.in-addr.arpa. NSnsauth2.signet.nl.
2015-03-01 00:04:252025-04-10 16:36:54
136.21.81.in-addr.arpa. NSnsauth1.signet.nl.
2015-03-01 00:04:252025-04-10 16:36:54
136.21.81.in-addr.arpa. NSnsauth3.signet.nl.
2015-03-01 00:04:252025-04-10 16:36:54

WHOIS info for: 136.21.81.in-addr.arpa 

No whois server is known for this kind of object.