Robtex

Up: 192.72.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 192.72.224.0/20
Down right: 192.72.240.0/20

IP	Type	Hostname
192.72.241.0	PTR	h0-192-72-241.seed.net.tw
192.72.241.32	PTR	h32-192-72-241.seed.net.tw
192.72.241.64	PTR	h64-192-72-241.seed.net.tw
192.72.241.96	PTR	h96-192-72-241.seed.net.tw
192.72.241.99	PTR	h99-192-72-241.seed.net.tw
192.72.241.130	PTR	h130-192-72-241.seed.net.tw
192.72.241.192	PTR	h192-192-72-241.seed.net.tw