Reverse DNS Lookup for 172.58.100.212

Searching for 212.100.58.172.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33] ...took 14 ms
Searching for 212.100.58.172.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 14 ms
Searching for x.arin.net. A record at l.gtld-servers.net. [192.41.162.30] ...took 11 ms
Searching for x.arin.net. A record at ns2.arin.net. [199.71.0.108] ...took 150 ms

Searching for 212.100.58.172.in-addr.arpa. PTR record at x.arin.net. [199.180.180.63] ...took 91 ms

Searching for ns10.tmobileus.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33] ...took 14 ms
Searching for ns10.tmobileus.net. A record at e.gtld-servers.net. [192.12.94.30] ...took 24 ms
Searching for ns10.tmobileus.net. A record at ns10.tmobileus.net. [208.54.99.244] ...took 124 ms

Searching for 212.100.58.172.in-addr.arpa. PTR record at ns10.tmobileus.net. [208.54.99.244] ...took 124 ms
REFUSED

Searching for ns10.tmobileus.com. A record at M.ROOT-SERVERS.NET. [202.12.27.33] ...took 14 ms
Searching for ns10.tmobileus.com. A record at b.gtld-servers.net. [192.33.14.30] ...took 33 ms
Searching for ns10.tmobileus.com. A record at ns10.tmobileus.net. [208.54.99.244] ...took 124 ms

Searching for 212.100.58.172.in-addr.arpa. PTR record at ns10.tmobileus.com. [208.54.147.200] ...took 161 ms
REFUSED
Searching for 212.100.58.172.in-addr.arpa. PTR record at ns10.tmobileus.net. [208.54.99.244] ...took 125 ms
REFUSED
Searching for 212.100.58.172.in-addr.arpa. PTR record at ns10.tmobileus.com. [208.54.147.200] ...took 161 ms
REFUSED

None of the nameservers responded correctly.

Total elapsed query time: 1,301 ms