Searching for 121.164.51.75.in-addr.arpa. PTR record at A.ROOT-SERVERS.NET. [198.41.0.4]
...took 6 ms
Searching for 121.164.51.75.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 12 ms
Searching for 121.164.51.75.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 12 ms
Searching for arin.authdns.ripe.net. A record at C.ROOT-SERVERS.NET. [192.33.4.12]
...took 8 ms
Searching for arin.authdns.ripe.net. A record at i.gtld-servers.net. [192.43.172.30] ...took 6 ms
Searching for arin.authdns.ripe.net. A record at ns3.afrinic.net. [204.61.216.100] ...took 12 ms
Searching for 121.164.51.75.in-addr.arpa. PTR record at arin.authdns.ripe.net. [193.0.9.10]
...took 11 msSearching for arin.authdns.ripe.net. A record at i.gtld-servers.net. [192.43.172.30] ...took 6 ms
Searching for arin.authdns.ripe.net. A record at ns3.afrinic.net. [204.61.216.100] ...took 12 ms
Searching for ns3.sbcglobal.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for ns3.sbcglobal.net. A record at b.gtld-servers.net. [192.33.14.30] ...took 13 ms
Searching for ns3.sbcglobal.net. A record at a5-67.akam.net. [95.100.168.67] ...took 12 ms
Searching for 121.164.51.75.in-addr.arpa. PTR record at ns3.sbcglobal.net. [65.68.49.6]
...took 151 msSearching for ns3.sbcglobal.net. A record at b.gtld-servers.net. [192.33.14.30] ...took 13 ms
Searching for ns3.sbcglobal.net. A record at a5-67.akam.net. [95.100.168.67] ...took 12 ms
Nameserver ns3.sbcglobal.net. reports: No such host 121.164.51.75.in-addr.arpa.
Total elapsed query time: 245 ms