Robtex

Up: 203.21.224.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 203.21.224.0/22
Down right: 203.21.228.0/22

IP	Type	Hostname
203.21.224.73	A	cpe-203-21-224-73.austarbroadband.com.au
203.21.224.188	A	cpe-203-21-224-188.austarbroadband.com.au
203.21.227.107	A	cpe-203-21-227-107.austarbroadband.com.au
203.21.230.241	PTR	cpe-203-21-230-241.austarbroadband.com.au