Searching for 6.4.172.63.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for 6.4.172.63.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 190 ms
Searching for 6.4.172.63.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 190 ms
Searching for z.arin.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for z.arin.net. A record at m.gtld-servers.net. [192.55.83.30] ...took 12 ms
Searching for z.arin.net. A record at ns2.arin.net. [199.71.0.108] ...took 154 ms
Searching for 6.4.172.63.in-addr.arpa. PTR record at z.arin.net. [199.180.180.63]
...took 92 msSearching for z.arin.net. A record at m.gtld-servers.net. [192.55.83.30] ...took 12 ms
Searching for z.arin.net. A record at ns2.arin.net. [199.71.0.108] ...took 154 ms
Searching for auth1.dns.cogentco.com. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for auth1.dns.cogentco.com. A record at b.gtld-servers.net. [192.33.14.30] ...took 32 ms
Searching for auth1.dns.cogentco.com. A record at auth2.dns.cogentco.com. [66.28.0.30] ...took 11 ms
Searching for 6.4.172.63.in-addr.arpa. PTR record at auth1.dns.cogentco.com. [66.28.0.14]
...took 11 msSearching for auth1.dns.cogentco.com. A record at b.gtld-servers.net. [192.33.14.30] ...took 32 ms
Searching for auth1.dns.cogentco.com. A record at auth2.dns.cogentco.com. [66.28.0.30] ...took 11 ms
Nameserver auth1.dns.cogentco.com. reports: No such host 6.4.172.63.in-addr.arpa.
Total elapsed query time: 545 ms