Robtex

Up: 203.162.96.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.162.100.0/23
Down right: 203.162.102.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.162.101.5	PTR	mail-vn.scancom.net
203.162.101.13	PTR	mail.ou.edu.vn
203.162.101.14	PTR	www.ou.edu.vn
203.162.101.17	PTR	mail.hcmulaw.edu.vn
203.162.101.18	PTR	www.hcmulaw.edu.vn
203.162.101.19	PTR	daotao.hcmulaw.edu.vn
203.162.101.20	PTR	lib.hcmulaw.edu.vn
203.162.101.21	PTR	application.hcmulaw.edu.vn
203.162.101.22	PTR	tapchi.hcmulaw.edu.vn
203.162.101.41	PTR	mail.jssvietnam.com.vn
203.162.101.42	PTR	www.jssvietnam.com.vn
203.162.101.65	PTR	mail.habitex-vn.com
203.162.101.67	A+PTR	backup.habitex-vn.com
203.162.101.98	PTR	omnisaigonhotel.com
203.162.101.98	PTR	mail.omnisaigonhotel.com
203.162.101.105	PTR	www.mailinh.vn
203.162.101.106	PTR	mail.mailinh.vn
203.162.101.177	PTR	www.auf.edu.vn
203.162.101.178	PTR	mail.auf.edu.vn
203.162.101.198	A	mail.mekong-energy.com
203.162.101.198	A	mekong-energy.com
203.162.101.233	PTR	mail.sinhvientimviec.com.vn
203.162.101.234	PTR	www.sinhvientimviec.com.vn
203.162.102.4	A+PTR	mail1.vntrade.vn
203.162.102.6	PTR	static.vnpt.vn
203.162.102.6	A	vntrade.vn
203.162.102.35	PTR	searefico.com
203.162.102.35	A+PTR	mail.searefico.com
203.162.102.35	PTR	mx01.searefico.com
203.162.102.37	PTR	static.vnpt.vn
203.162.102.37	A	searefico.com
203.162.102.37	A	www.searefico.com
203.162.102.51	PTR	www.coastsvn.com.vn
203.162.102.65	PTR	mail.nth.edu.vn
203.162.102.66	PTR	www.nth.edu.vn
203.162.102.115	PTR	static.vnpt.vn
203.162.102.115	A	pvdrilling.com.vn
203.162.102.115	A	www.pvdrilling.com
203.162.102.116	PTR	mail.pvdrilling.com.vn
203.162.102.117	PTR	static.vnpt.vn
203.162.102.117	A	smtp2.pvdrilling.com.vn
203.162.102.119	A+PTR	smtp2.pvdrilling.com.vn
203.162.102.177	PTR	www.dnal.com.vn
203.162.102.178	PTR	mail.dnal.com.vn
203.162.103.124	PTR	static.vnpt.vn
203.162.103.166	PTR	static.vnpt.vn
203.162.103.167	PTR	static.vnpt.vn