Enter host name or IP address: 2 result(s) for 54.21.4.in-addr.arpa
namequery typeresultfirst seenlast seen
54.21.4.in-addr.arpa. NSns2.covad.com.
2020-02-15 01:52:502025-02-01 13:22:42
54.21.4.in-addr.arpa. NSns1.covad.com.
2020-02-15 01:52:502025-02-01 13:22:42

WHOIS info for: 54.21.4.in-addr.arpa

No whois server is known for this kind of object.