Reverse DNS Lookup for 172.58.100.187

Searching for 187.100.58.172.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33] ...took 15 ms
Searching for 187.100.58.172.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 176 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 a.gtld-servers.net. [192.5.6.30] ...took 23 ms
Searching for x.arin.net. A record at ns3.arin.net. [199.5.26.108] ...took 165 ms

Searching for 187.100.58.172.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 15 ms
Searching for ns10.tmobileus.net. A record at g.gtld-servers.net. [192.42.93.30] ...took 7 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 i.gtld-servers.net. [192.43.172.30] ...took 6 ms
Searching for auth1.dns.cogentco.com. A record at auth2.dns.cogentco.com. [66.28.0.30] ...took 11 ms

Searching for ns10.tmobileus.net. A record at auth1.dns.cogentco.com. [66.28.0.14] ...took 12 ms

Searching for 187.100.58.172.in-addr.arpa. PTR record at ns10.tmobileus.net. [208.54.99.244] ...took 123 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 k.gtld-servers.net. [192.52.178.30] ...took 12 ms
Searching for ns10.tmobileus.com. A record at auth2.dns.cogentco.com. [66.28.0.30] ...took 11 ms

Searching for 187.100.58.172.in-addr.arpa. PTR record at ns10.tmobileus.com. [208.54.147.200] ...took 158 ms
REFUSED
Searching for 187.100.58.172.in-addr.arpa. PTR record at ns10.tmobileus.net. [208.54.99.244] ...took 124 ms
REFUSED
Searching for 187.100.58.172.in-addr.arpa. PTR record at ns10.tmobileus.com. [208.54.147.200] ...took 159 ms
REFUSED

None of the nameservers responded correctly.

Total elapsed query time: 1,150 ms