Reverse DNS Lookup for 172.56.30.247

Searching for 247.30.56.172.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33] ...took 14 ms
Searching for 247.30.56.172.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 141 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 24 ms
Searching for x.arin.net. A record at u.arin.net. [204.61.216.50] ...took 6 ms

Searching for 247.30.56.172.in-addr.arpa. PTR record at x.arin.net. [199.180.180.63] ...took 93 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 l.gtld-servers.net. [192.41.162.30] ...took 12 ms
Searching for ns10.tmobileus.net. A record at ns10.tmobileus.net. [208.54.99.244] ...took 123 ms

Searching for 247.30.56.172.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 15 ms
Searching for ns10.tmobileus.com. A record at j.gtld-servers.net. [192.48.79.30] ...took 12 ms
Searching for ns10.tmobileus.com. A record at auth2.dns.cogentco.com. [66.28.0.30] ...took 11 ms

Searching for 247.30.56.172.in-addr.arpa. PTR record at ns10.tmobileus.com. [208.54.147.200] ...took 156 ms
REFUSED
Searching for 247.30.56.172.in-addr.arpa. PTR record at ns10.tmobileus.net. [208.54.99.244] ...took 122 ms
REFUSED
Searching for 247.30.56.172.in-addr.arpa. PTR record at ns10.tmobileus.com. [208.54.147.200] ...took 156 ms
REFUSED

None of the nameservers responded correctly.

Total elapsed query time: 1,036 ms