Robtex

Up: 211.74.128.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 211.74.128.0/20
Down right: 211.74.144.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
211.74.128.0	PTR	swtp128-0.adsl.dynamic.seed.net.tw
211.74.130.237	PTR	swtp130-237.adsl.dynamic.seed.net.tw
211.74.131.196	PTR	swtp131-196.adsl.dynamic.seed.net.tw
211.74.134.152	PTR	swtp134-152.adsl.dynamic.seed.net.tw
211.74.135.255	PTR	swtp135-255.adsl.dynamic.seed.net.tw
211.74.144.233	PTR	mx1.tdccorp.com.tw
211.74.144.233	PTR	ns1.tdccorp.com.tw
211.74.144.235	A+PTR	mx3.tdccorp.com.tw
211.74.144.235	PTR	tdc.tdccorp.com.tw
211.74.144.235	A	ns3.tdccorp.com.tw
211.74.149.65	PTR	h65.149.74.211.fisc.com.tw
211.74.149.65	A	lxl.fisc.com.tw
211.74.149.227	PTR	h227.149.74.211.seed.net.tw
211.74.150.129	PTR	wktechfund.com
211.74.150.129	PTR	wktech.com.tw
211.74.150.129	A+PTR	dns-s.wktech.com.tw
211.74.153.133	A	leebros.com.tw
211.74.155.192	PTR	h192.155.74.211.seed.net.tw
211.74.157.58	PTR	h58.157.74.211.seed.net.tw
211.74.157.251	PTR	h251.157.74.211.seed.net.tw
211.74.158.60	A	tips.org.tw
211.74.158.95	PTR	h95.158.74.211.seed.net.tw