Reverse DNS Lookup for 64.111.207.138

Searching for 138.207.111.64.in-addr.arpa. PTR record at K.ROOT-SERVERS.NET. [193.0.14.129] ...took 40 ms
Searching for 138.207.111.64.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 92 ms

Searching for u.arin.net. A record at K.ROOT-SERVERS.NET. [193.0.14.129] ...took 40 ms
Searching for u.arin.net. A record at b.gtld-servers.net. [192.33.14.30] ...took 41 ms
Searching for u.arin.net. A record at ns2.arin.net. [199.71.0.108] ...took 154 ms

Searching for 138.207.111.64.in-addr.arpa. PTR record at u.arin.net. [204.61.216.50] ...took 13 ms

Searching for ns.isprime.com. A record at K.ROOT-SERVERS.NET. [193.0.14.129] ...took 39 ms
Searching for ns.isprime.com. A record at c.gtld-servers.net. [192.26.92.30] ...took 24 ms
Searching for ns.isprime.com. A record at ns.isprime.com. [162.159.26.9] ...took 113 ms

Searching for 138.207.111.64.in-addr.arpa. PTR record at ns.isprime.com. [162.159.26.9] ...took 113 ms
REFUSED
Searching for 138.207.111.64.in-addr.arpa. PTR record at ns2.isprime.com. [162.159.27.179] ...took 114 ms
REFUSED
Searching for 138.207.111.64.in-addr.arpa. PTR record at ns2.isprime.com. [162.159.27.179] ...took 110 ms
REFUSED
Searching for 138.207.111.64.in-addr.arpa. PTR record at ns.isprime.com. [162.159.26.9] ...took 115 ms
REFUSED

None of the nameservers responded correctly.

Total elapsed query time: 1,008 ms