Robtex

Up: 203.80.24.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.80.24.0/25
Down right: 203.80.24.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.80.24.3	PTR	node-024003.ext.ameba.jp
203.80.24.129	PTR	node-024129.ext.ameba.jp
203.80.24.129	A	img.paco.ameba.jp
203.80.24.129	A	stat.room.ameba.jp
203.80.24.130	PTR	node-024130.ext.ameba.jp
203.80.24.194	PTR	node-024194.ext.ameba.jp