Robtex

Up: 210.243.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 210.243.240.0/22
Down right: 210.243.244.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.243.240.145	PTR	mail.tranwo.com.tw
210.243.240.242	PTR	opnet1.opnet.com.tw
210.243.240.243	PTR	intranet.opnet.com.tw
210.243.240.244	PTR	opnet2.opnet.com.tw
210.243.241.41	PTR	h41-210-243-241.seed.net.tw
210.243.241.161	A	dns3.aiptek.com.tw
210.243.241.194	A	mx2.hgiga.com
210.243.241.197	PTR	ns.hgiga.com
210.243.241.197	A	ns1.servstar.com
210.243.241.197	A	ns.servstar.net
210.243.241.198	PTR	spamnew.hgiga.com
210.243.241.199	PTR	smtp-relay.hgiga.com
210.243.242.48	PTR	h48-210-243-242.seed.net.tw
210.243.242.51	A	ns.giga-solution.com
210.243.242.98	PTR	h98-210-243-242.aiptek.com.tw
210.243.242.98	A	dns.aiptek.tw
210.243.242.98	A	dns.aiptek.com.cn
210.243.242.99	A	thunder.aiptek.com.tw
210.243.242.106	A+PTR	mail.aiptek.com.tw
210.243.242.106	A	aiptek.com.tw
210.243.242.115	A	dns4.aiptek.com.tw
210.243.242.233	PTR	h233-210-243-242.seed.net.tw
210.243.242.233	A	dns2.aiptek.cn
210.243.242.233	A	dns2.aiptek.com.tw
210.243.243.28	PTR	sk.s7.ans1.ns147.klczy.com
210.243.243.99	A	spam.homerprint.com
210.243.243.99	A	homerprint.com.tw
210.243.243.99	A	mail.homerprint.com
210.243.243.170	A+PTR	ms.tyh.com.tw
210.243.243.170	A	tyhms.tyh.com.tw
210.243.245.50	PTR	h50-210-243-245.seed.net.tw
210.243.245.51	PTR	h51-210-243-245.seed.net.tw
210.243.245.60	A	kpro.com.tw
210.243.245.136	PTR	h136-210-243-245.seed.net.tw
210.243.246.217	PTR	twgb.com.tw
210.243.246.217	PTR	smtp2.twgb.com.tw
210.243.246.217	A	dns.twgb.com.tw
210.243.246.218	A+PTR	smtp2.twgb.com.tw
210.243.246.219	A	smtp.twgb.com.tw
210.243.246.220	PTR	twgb.com.tw
210.243.246.220	PTR	smtp2.twgb.com.tw