Robtex

Up: 210.66.0.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 210.66.8.0/22
Down right: 210.66.12.0/22

IP	Type	Hostname
210.66.11.22	A	gneic.com
210.66.12.96	PTR	h96-210-66-12.datatree.com.tw
210.66.13.12	A	mail.hiroichi.com.tw
210.66.13.12	A	hiroichi.com.tw
210.66.13.17	A+PTR	mail.tcf.com.tw
210.66.13.18	PTR	h18-210-66-13.lh.com.tw
210.66.13.18	A	m-tcf.com.tw
210.66.13.33	PTR	h33-210-66-13.lh.com.tw
210.66.13.33	A	mail.haifeng.com