Searching for 251.12.50.74.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for 251.12.50.74.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] Timed out while trying to resolve 251.12.50.74.in-addr.arpa./PTR, id=45083
Searching for 251.12.50.74.in-addr.arpa. PTR record at e.in-addr-servers.arpa. [203.119.86.101] ...took 286 ms
Searching for 251.12.50.74.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] Timed out while trying to resolve 251.12.50.74.in-addr.arpa./PTR, id=45083
Searching for 251.12.50.74.in-addr.arpa. PTR record at e.in-addr-servers.arpa. [203.119.86.101] ...took 286 ms
Searching for y.arin.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for y.arin.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 6 ms
Searching for y.arin.net. A record at ns2.arin.net. [199.71.0.108] ...took 150 ms
Searching for 251.12.50.74.in-addr.arpa. PTR record at y.arin.net. [192.82.134.30]
...took 6 msSearching for y.arin.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 6 ms
Searching for y.arin.net. A record at ns2.arin.net. [199.71.0.108] ...took 150 ms
Nameserver y.arin.net. reports: No such host 251.12.50.74.in-addr.arpa.
Total elapsed query time: 2,479 ms