Robtex

Up: 171.255.192.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 171.255.192.0/24
Down right: 171.255.193.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
171.255.192.4	A	phapluat.netnews.vn
171.255.192.16	PTR	dynamic-ip-adsl.viettel.vn
171.255.192.16	A	qlvb.thainguyen.edu.vn
171.255.192.16	A	edu.vpdt.com.vn
171.255.192.22	A	video.mocha.com.vn
171.255.192.22	A	m.video.mocha.com.vn
171.255.192.23	PTR	dynamic-ip-adsl.viettel.vn
171.255.192.23	A	video.mocha.com.vn
171.255.192.23	A	m.video.mocha.com.vn
171.255.192.25	A	media2.tiin.vn
171.255.192.25	A	media22.tiin.vn
171.255.192.26	A	mcvideo.imgvip.keeng.net
171.255.192.26	A	media2.sieuhai.tv
171.255.192.26	A	apiphim.onbox.vn
171.255.192.27	A	mcvideo.imgvip.keeng.net
171.255.192.27	A	media2.sieuhai.tv
171.255.192.27	A	apiphim.onbox.vn
171.255.192.28	A	mcvideo.imgvip.keeng.net
171.255.192.28	A	media2.sieuhai.tv
171.255.192.28	A	media3.onbox.vn
171.255.192.29	A	mcvideo.imgvip.keeng.net
171.255.192.29	A	media2.sieuhai.tv
171.255.192.29	A	media3.onbox.vn
171.255.192.30	A	www.tinngan.vn
171.255.192.30	A	tinngan.vn
171.255.192.31	A	www.tinngan.vn
171.255.192.39	PTR	dynamic-adsl.viettel.vn
171.255.192.39	A	smasplus.smas.edu.vn
171.255.192.86	PTR	dynamic-adsl.viettel.vn
171.255.192.86	A	analysis.viettel.vn
171.255.192.101	A	www.kenhhai.vn
171.255.192.101	A	kenhhai.vn
171.255.192.107	A	qlth.haiduong.edu.vn
171.255.192.107	A	qlth.quangninh.edu.vn
171.255.192.108	A	smsedu.smas.vn
171.255.192.118	PTR	dynamic-ip-adsl.viettel.vn
171.255.192.120	A	mbccs.viettel.vn
171.255.192.128	PTR	dynamic-adsl.viettel.vn
171.255.192.128	A	csdl.edu.vn
171.255.192.151	A	vietteliot.com
171.255.192.209	A	viettelfamilyglobal.com
171.255.192.239	A	viettelstudy.vn
171.255.192.239	A	www.viettelstudy.vn
171.255.192.241	A	sso-edu.viettel.vn
171.255.192.244	PTR	dynamic-ip-adsl.viettel.vn
171.255.192.244	A	lite.dmsone.vn
171.255.192.245	A	dmsone.vn
171.255.192.246	PTR	dynamic-adsl.viettel.vn
171.255.192.246	A	api-sinvoice.viettel.vn
171.255.192.247	PTR	dynamic-ip-adsl.viettel.vn
171.255.192.247	A	business-sinvoice.viettel.vn
171.255.192.248	A	sinvoice.vn
171.255.192.248	A	mail.sinvoice.vn
171.255.193.132	PTR	dynamic-ip-adsl.viettel.vn
171.255.193.132	A	api3gvideo.mocha.com.vn
171.255.193.133	A	omnovip.mocha.com.vn
171.255.193.140	A	hl2.mocha.com.vn
171.255.193.141	A	hlvip2.mocha.com.vn
171.255.193.141	A	pvvip2.mocha.com.vn
171.255.193.142	PTR	dynamic-adsl.viettel.vn
171.255.193.142	A	sapi.mocha.com.vn
171.255.193.163	PTR	dynamic-ip-adsl.viettel.vn
171.255.193.163	A	mcapi.mocha.com.vn
171.255.193.163	A	mcapivip.mocha.com.vn
171.255.193.165	A	youngawards.keeng.vn
171.255.193.165	A	usuk.keeng.net
171.255.193.165	A	nhachoa.keeng.net
171.255.193.166	PTR	dynamic-adsl.viettel.vn
171.255.193.166	A	usuk.keeng.net
171.255.193.166	A	nhachoa.keeng.net
171.255.193.169	PTR	dynamic-ip-adsl.viettel.vn
171.255.193.169	A	location.keeng.net
171.255.193.173	PTR	dynamic-ip-adsl.viettel.vn
171.255.193.173	A	mochavipa2.keeng.net
171.255.193.173	A	audio2.keeng.net
171.255.193.175	A	location.keeng.net
171.255.193.175	A	loc.media.keeng.net
171.255.193.185	PTR	dynamic-adsl.viettel.vn
171.255.193.185	A	vip.image.video.mocha.com.vn
171.255.193.185	A	apivideo.mocha.com.vn
171.255.193.187	PTR	dynamic-ip-adsl.viettel.vn
171.255.193.187	A	vip.image.video.mocha.com.vn
171.255.193.187	A	apivideo.mocha.com.vn