Robtex

Up: 203.70.136.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.70.136.0/23
Down right: 203.70.138.0/23

IP	Type	Hostname
203.70.139.103	PTR	h103-203-70-139.seed.net.tw
203.70.139.142	PTR	h142-203-70-139.seed.net.tw
203.70.139.167	PTR	mail.epistar.com.tw
203.70.139.168	PTR	h168-203-70-139.seed.net.tw
203.70.139.241	PTR	airwave.com.tw