Searching for 120.72.185.90.in-addr.arpa. PTR record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 12 ms
Searching for 120.72.185.90.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 168 ms
Searching for 120.72.185.90.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 168 ms
Searching for ns4.apnic.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for ns4.apnic.net. A record at a.gtld-servers.net. [192.5.6.30] ...took 24 ms
Searching for ns4.apnic.net. A record at ns2.apnic.net. [203.119.95.53] ...took 5 ms
Searching for 120.72.185.90.in-addr.arpa. PTR record at ns4.apnic.net. [202.12.31.53]
...took 16 msSearching for ns4.apnic.net. A record at a.gtld-servers.net. [192.5.6.30] ...took 24 ms
Searching for ns4.apnic.net. A record at ns2.apnic.net. [203.119.95.53] ...took 5 ms
Nameserver ns4.apnic.net. reports: No such host 120.72.185.90.in-addr.arpa.
Total elapsed query time: 239 ms