Robtex

Up: 121.44.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 121.44.56.0/22
Down right: 121.44.60.0/22

IP	Type	Hostname
121.44.56.81	PTR	ppp121-44-56-81.lns20.syd6.internode.on.net
121.44.56.216	PTR	ppp121-44-56-216.lns20.syd4.internode.on.net
121.44.57.211	A	executor.homelinux.net
121.44.58.242	PTR	ppp121-44-58-242.lns20.syd6.internode.on.net
121.44.59.57	PTR	ppp121-44-59-57.lns20.syd6.internode.on.net
121.44.59.115	PTR	ppp121-44-59-115.lns20.syd6.internode.on.net
121.44.59.233	A	wikitrust.peacocktech.com
121.44.60.24	PTR	ppp121-44-60-24.lns20.syd4.internode.on.net
121.44.61.106	PTR	ppp121-44-61-106.lns20.syd4.internode.on.net
121.44.62.73	A+PTR	ppp121-44-62-73.lns20.syd4.internode.on.net
121.44.62.92	PTR	ppp121-44-62-92.lns20.syd4.internode.on.net
121.44.62.181	PTR	ppp121-44-62-181.lns20.syd6.internode.on.net
121.44.63.74	A+PTR	ppp121-44-63-74.lns20.syd4.internode.on.net
121.44.63.222	A	mail.rdknb.com