Robtex

Up: 210.66.64.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 210.66.68.0/23
Down right: 210.66.70.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.66.68.67	A	kk9988kk.com
210.66.68.120	A	1esball.com
210.66.69.39	PTR	www.swear.com.tw
210.66.69.40	PTR	smail.swear.com.tw
210.66.69.61	PTR	dns1.swear.com.tw
210.66.69.71	PTR	www.swear.com.tw
210.66.69.72	PTR	smail.swear.com.tw
210.66.69.93	PTR	dns2.swear.com.tw
210.66.69.98	PTR	h98-210-66-69.seed.net.tw
210.66.69.99	PTR	h99-210-66-69.seed.net.tw
210.66.69.99	A	www.giguo.com.tw
210.66.69.191	PTR	h191-210-66-69.seed.net.tw
210.66.69.194	A	vmail4.manufacture.com.tw
210.66.69.194	A	vmail4.trader.com.tw
210.66.69.196	A	dns1.trader.com.tw
210.66.69.197	A	customer.trader.com.tw
210.66.69.203	A+PTR	ms3.manufacture.com.tw
210.66.69.203	A	taiwanmachines.com
210.66.69.210	PTR	ms.manufacture.com.tw
210.66.69.211	PTR	st1.trader.com.tw
210.66.69.214	A	twnea.com.tw
210.66.69.214	A	ec92.vh.com.tw
210.66.69.222	A+PTR	dns2.manufacture.com.tw
210.66.69.222	A	mail.manufacture.com.tw
210.66.69.223	A	project1.vh.com.tw
210.66.69.223	A	naturalfog.com
210.66.69.224	A	sql01.vh.com.tw
210.66.69.224	A	vmst5.urb2b.com
210.66.69.225	A+PTR	vmail1-3.trader.com.tw
210.66.69.226	PTR	vmail5-1.trader.com.tw
210.66.69.226	A	mail.saking.com.tw
210.66.69.227	PTR	vmail2.trader.com.tw
210.66.69.234	A	asianproducts.tw
210.66.69.234	A	commercenet.tw
210.66.69.234	A	taiwanmanufacturer.com.tw
210.66.70.0	PTR	h0-210-66-70.seed.net.tw
210.66.70.63	PTR	h63-210-66-70.seed.net.tw
210.66.70.64	PTR	h64-210-66-70.yuken.com.tw
210.66.71.36	PTR	dns.leadwell.com.tw
210.66.71.37	A+PTR	dns1.leadwell.com.tw
210.66.71.38	PTR	leadwell.com.tw
210.66.71.38	A	dns2.leadwell.com.tw