Searching for 50.72.172.207.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for 50.72.172.207.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 117 ms
Searching for 50.72.172.207.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 117 ms
Searching for x.arin.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for x.arin.net. A record at k.gtld-servers.net. [192.52.178.30] ...took 12 ms
Searching for x.arin.net. A record at ns3.arin.net. [199.5.26.108] ...took 160 ms
Searching for 50.72.172.207.in-addr.arpa. PTR record at x.arin.net. [199.180.180.63]
...took 95 msSearching for x.arin.net. A record at k.gtld-servers.net. [192.52.178.30] ...took 12 ms
Searching for x.arin.net. A record at ns3.arin.net. [199.5.26.108] ...took 160 ms
Searching for auth4.dns.rcn.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for auth4.dns.rcn.net. A record at e.gtld-servers.net. [192.12.94.30] ...took 24 ms
Searching for auth4.dns.rcn.net. A record at auth3.dns.rcn.net. [207.172.3.21] ...took 104 ms
Searching for 50.72.172.207.in-addr.arpa. PTR record at auth4.dns.rcn.net. [207.172.3.22]
...took 104 msSearching for auth4.dns.rcn.net. A record at e.gtld-servers.net. [192.12.94.30] ...took 24 ms
Searching for auth4.dns.rcn.net. A record at auth3.dns.rcn.net. [207.172.3.21] ...took 104 ms
Nameserver auth4.dns.rcn.net. reports: No such host 50.72.172.207.in-addr.arpa.
Total elapsed query time: 659 ms