Robtex

Up: 220.244.170.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 220.244.171.0/25
Down right: 220.244.171.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
220.244.171.88	PTR	220-244-171-88.static.tpgi.com.au
220.244.171.160	A+PTR	220-244-171-160.static.tpgi.com.au
220.244.171.223	PTR	220-244-171-223.static.tpgi.com.au
220.244.171.223	A	nsx.megabytecomputing.com.au
220.244.171.223	A	megabytecomputing.com.au
220.244.171.229	A	octothorn.com
220.244.171.229	A	octothorn.info