Reverse DNS Lookup for 203.164.91.78

Searching for 78.91.164.203.in-addr.arpa. PTR record at K.ROOT-SERVERS.NET. [193.0.14.129] ...took 36 ms
Searching for 78.91.164.203.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 12 ms

Searching for ns1.apnic.net. A record at L.ROOT-SERVERS.NET. [199.7.83.42] ...took 26 ms
Searching for ns1.apnic.net. A record at c.gtld-servers.net. [192.26.92.30] ...took 24 ms
Searching for ns1.apnic.net. A record at apnic.authdns.ripe.net. [193.0.9.9] ...took 12 ms

Searching for 78.91.164.203.in-addr.arpa. PTR record at ns1.apnic.net. [203.119.42.53] ...took 308 ms

Searching for ns2.optushome.com.au. A record at I.ROOT-SERVERS.NET. [192.36.148.17] ...took 6 ms
Searching for ns2.optushome.com.au. A record at q.au. [65.22.196.1] ...took 16 ms
Searching for ns2.optushome.com.au. A record at ns1.optusnet.com.au. [203.2.75.2] ...took 283 ms

Searching for 78.91.164.203.in-addr.arpa. PTR record at ns2.optushome.com.au. [203.2.75.12]

Query timed out (interrupted after 2,003 milliseconds)

Retrying...

Searching for ns1.optushome.com.au. A record at K.ROOT-SERVERS.NET. [193.0.14.129] ...took 35 ms
Searching for ns1.optushome.com.au. A record at t.au. [65.22.199.1] ...took 6 ms
Searching for ns1.optushome.com.au. A record at ns1.optusnet.com.au. [203.2.75.2] ...took 286 ms

Searching for 78.91.164.203.in-addr.arpa. PTR record at ns1.optushome.com.au. [203.2.75.2] ...took 286 ms

Nameserver ns1.optushome.com.au. reports: No such host 78.91.164.203.in-addr.arpa.

Total elapsed query time: 3,339 ms