Searching for 143.115.252.91.in-addr.arpa. PTR record at F.ROOT-SERVERS.NET. [192.5.5.241]
...took 6 ms
Searching for 143.115.252.91.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 189 ms
Searching for 143.115.252.91.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 189 ms
Searching for ns4.apnic.net. A record at J.ROOT-SERVERS.NET. [192.58.128.30]
...took 30 ms
Searching for ns4.apnic.net. A record at b.gtld-servers.net. [192.33.14.30] ...took 32 ms
Searching for ns4.apnic.net. A record at ns2.apnic.net. [203.119.95.53] ...took 217 ms
Searching for 143.115.252.91.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 32 ms
Searching for ns4.apnic.net. A record at ns2.apnic.net. [203.119.95.53] ...took 217 ms
Nameserver ns4.apnic.net. reports: No such host 143.115.252.91.in-addr.arpa.
Total elapsed query time: 490 ms