Searching for 172.64.138.212.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for 172.64.138.212.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 11 ms
Searching for 172.64.138.212.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 11 ms
Searching for ns4.apnic.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for ns4.apnic.net. A record at b.gtld-servers.net. [192.33.14.30] ...took 31 ms
Searching for ns4.apnic.net. A record at ns2.apnic.net. [203.119.95.53] ...took 220 ms
Searching for 172.64.138.212.in-addr.arpa. PTR record at ns4.apnic.net. [202.12.31.53]
...took 16 msSearching for ns4.apnic.net. A record at b.gtld-servers.net. [192.33.14.30] ...took 31 ms
Searching for ns4.apnic.net. A record at ns2.apnic.net. [203.119.95.53] ...took 220 ms
Searching for ns3.isu.net.sa. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for ns3.isu.net.sa. A record at m2.dns.sa. [86.51.28.37] ...took 76 ms
Searching for ns3.isu.net.sa. A record at ns2.isu.net.sa. [212.138.72.5] ...took 79 ms
Searching for 172.64.138.212.in-addr.arpa. PTR record at ns3.isu.net.sa. [212.26.18.23]
...took 97 msSearching for ns3.isu.net.sa. A record at m2.dns.sa. [86.51.28.37] ...took 76 ms
Searching for ns3.isu.net.sa. A record at ns2.isu.net.sa. [212.138.72.5] ...took 79 ms
Nameserver ns3.isu.net.sa. reports: No such host 172.64.138.212.in-addr.arpa.
Total elapsed query time: 574 ms