Robtex

Up: 210.243.166.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 210.243.166.0/25
Down right: 210.243.166.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.243.166.37	A+PTR	dns1.udn.com
210.243.166.38	A	udnjobbe.udnjob.com
210.243.166.42	A	www.clearplexap.com
210.243.166.45	A	m.udn.com
210.243.166.47	A	game.udn.com
210.243.166.49	A	ipost.udn.com
210.243.166.49	A	campus.udn.com
210.243.166.49	A	ugood.udn.com
210.243.166.54	A	miapi.udn.com
210.243.166.57	PTR	27681234.com.tw
210.243.166.60	A	func.udn.com
210.243.166.60	A	jobms.udnjob.com
210.243.166.61	A	jobms.udnjob.com
210.243.166.61	A	mail.udnjob.com
210.243.166.61	A	mail1.udnjob.com
210.243.166.66	A+PTR	udnpaper.com
210.243.166.66	A	ep13.udnpaper.com
210.243.166.66	A	www.udnpaper.com
210.243.166.69	A+PTR	fm.udnpaper.com
210.243.166.69	A	un.udndata.com
210.243.166.77	A	data.udn.com
210.243.166.79	A	ssl1.udn.com
210.243.166.81	A+PTR	udndata.com
210.243.166.81	A	udndata.com.tw
210.243.166.81	A	www.udndata.com
210.243.166.82	A	a-vote2020-d.udn.com
210.243.166.82	A	lab2-money.udn.com
210.243.166.82	A	lab7-news.udn.com
210.243.166.83	A	data-b2.udndata.com
210.243.166.91	A	paper.udn.com
210.243.166.93	A	reading.udn.com
210.243.166.133	PTR	video.udn.com
210.243.166.133	A	media.udn.com
210.243.166.136	A	mbd7.udn.com
210.243.166.138	A	lab-drupal-dep.udn.com
210.243.166.140	A	ireporter.udn.com
210.243.166.144	A	www.udnnews.com
210.243.166.144	A	udnstars.com
210.243.166.144	A	www.udnnews.com.tw
210.243.166.161	A+PTR	smtps.udn.com
210.243.166.161	A	mailv.udn.com
210.243.166.161	A	e.udn.com
210.243.166.162	A	smtps2.udn.com
210.243.166.163	A	smtps3.udn.com
210.243.166.166	A	event.udn.com
210.243.166.166	A	healthtour.udn.com
210.243.166.172	A	visualnews.udn.com
210.243.166.178	A	mbd5.udn.com
210.243.166.178	A	drupal-dep.udn.com
210.243.166.185	PTR	vision.udn.com
210.243.166.186	A	sslevent.udn.com
210.243.166.187	A	reader.udn.com
210.243.166.189	A	mbd3.udn.com
210.243.166.190	A	mbd4.udn.com
210.243.166.196	A	search.udn.com
210.243.166.197	A	gb.udndata.com
210.243.166.197	A	gb.udn.com
210.243.166.202	A	mbd6.udn.com
210.243.166.207	A	nuclear.udn.com
210.243.166.226	A	www.2018happiness.com.tw
210.243.166.231	A	ad5.udn.com
210.243.166.234	A	ad4.udn.com
210.243.166.240	A	novel.udn.com
210.243.166.242	A	ad2.udn.com
210.243.166.243	A	ad3.udn.com