Robtex

Up: 192.72.96.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 192.72.104.0/22
Down right: 192.72.108.0/22

IP	Type	Hostname
192.72.108.1	PTR	h1-192-72-108.seed.net.tw
192.72.108.8	PTR	h8-192-72-108.seed.net.tw
192.72.108.9	PTR	h9-192-72-108.seed.net.tw
192.72.108.10	PTR	h10-192-72-108.seed.net.tw
192.72.108.24	PTR	h24-192-72-108.seed.net.tw
192.72.108.25	PTR	h25-192-72-108.seed.net.tw
192.72.108.27	PTR	h27-192-72-108.seed.net.tw
192.72.108.43	PTR	h43-192-72-108.seed.net.tw
192.72.108.59	PTR	h59-192-72-108.seed.net.tw
192.72.108.65	PTR	h65-192-72-108.seed.net.tw
192.72.108.67	PTR	h67-192-72-108.seed.net.tw
192.72.108.73	PTR	h73-192-72-108.seed.net.tw
192.72.108.75	PTR	h75-192-72-108.seed.net.tw
192.72.108.81	PTR	h81-192-72-108.seed.net.tw
192.72.108.89	PTR	h89-192-72-108.seed.net.tw
192.72.108.91	PTR	h91-192-72-108.seed.net.tw
192.72.108.97	PTR	h97-192-72-108.seed.net.tw
192.72.108.106	PTR	h106-192-72-108.seed.net.tw
192.72.108.113	PTR	h113-192-72-108.seed.net.tw
192.72.108.121	PTR	h121-192-72-108.seed.net.tw
192.72.108.144	PTR	h144-192-72-108.seed.net.tw
192.72.108.152	PTR	h152-192-72-108.seed.net.tw
192.72.108.154	PTR	h154-192-72-108.seed.net.tw
192.72.108.168	PTR	h168-192-72-108.seed.net.tw
192.72.108.176	PTR	h176-192-72-108.seed.net.tw
192.72.108.185	PTR	h185-192-72-108.seed.net.tw
192.72.108.194	PTR	h194-192-72-108.seed.net.tw
192.72.108.203	PTR	h203-192-72-108.seed.net.tw
192.72.108.209	PTR	h209-192-72-108.seed.net.tw
192.72.108.234	PTR	h234-192-72-108.seed.net.tw
192.72.108.240	PTR	h240-192-72-108.seed.net.tw
192.72.108.241	PTR	h241-192-72-108.seed.net.tw
192.72.108.250	PTR	h250-192-72-108.seed.net.tw