Searching for 30.239.164.128.in-addr.arpa. PTR record at I.ROOT-SERVERS.NET. [192.36.148.17]
...took 12 ms
Searching for 30.239.164.128.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 12 ms
Searching for 30.239.164.128.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 12 ms
Searching for u.arin.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 13 ms
Searching for u.arin.net. A record at i.gtld-servers.net. [192.43.172.30] ...took 6 ms
Searching for u.arin.net. A record at ns2.arin.net. [199.71.0.108] ...took 153 ms
Searching for 30.239.164.128.in-addr.arpa. PTR record at u.arin.net. [204.61.216.50]
...took 11 msSearching for u.arin.net. A record at i.gtld-servers.net. [192.43.172.30] ...took 6 ms
Searching for u.arin.net. A record at ns2.arin.net. [199.71.0.108] ...took 153 ms
Searching for ns2.gwu.edu. A record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 11 ms
Searching for ns2.gwu.edu. A record at c.edu-servers.net. [192.26.92.30] ...took 24 ms
Searching for ns2.gwu.edu. A record at ns3.gwu.edu. [161.253.152.50] ...took 89 ms
Searching for 30.239.164.128.in-addr.arpa. PTR record at ns2.gwu.edu. [128.164.141.12]
...took 89 msSearching for ns2.gwu.edu. A record at c.edu-servers.net. [192.26.92.30] ...took 24 ms
Searching for ns2.gwu.edu. A record at ns3.gwu.edu. [161.253.152.50] ...took 89 ms
Nameserver ns2.gwu.edu. reports: No such host 30.239.164.128.in-addr.arpa.
Total elapsed query time: 420 ms