Robtex

Up: 220.231.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 220.231.64.0/20
Down right: 220.231.80.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
220.231.64.0	PTR	localhost
220.231.65.97	PTR	localhost
220.231.65.162	PTR	localhost
220.231.66.99	PTR	localhost
220.231.66.193	PTR	localhost
220.231.67.35	PTR	localhost
220.231.67.66	PTR	localhost
220.231.67.161	PTR	localhost
220.231.68.0	PTR	localhost
220.231.71.128	PTR	localhost
220.231.76.0	PTR	localhost
220.231.79.2	A	mobiletrade.sbsc.com.vn
220.231.79.6	A	sbsc.com.vn
220.231.79.6	A	www.sbsc.com.vn
220.231.79.7	A	stockboard2.sbsc.com.vn
220.231.79.10	PTR	mail2.cmit.com.vn
220.231.79.97	A+PTR	mail.lacty2.com.vn
220.231.79.97	A	lacty2.com
220.231.79.97	A	lacty2.com.vn
220.231.79.114	PTR	sgnm01.dksh.com
220.231.79.181	A	mx2.ilavietnam.com
220.231.79.209	A+PTR	mail1.ajinomoto.com.vn
220.231.79.226	A	www.nhs.com.vn
220.231.79.226	A	golfdalathotel.vn
220.231.79.226	A	www.sacomreal-s.com.vn
220.231.79.237	PTR	mail.betrimex.com.vn
220.231.79.237	PTR	mail.bentretourist.vn
220.231.79.237	PTR	mail.tsri.com.vn
220.231.79.238	PTR	mail.danghuynh.vn
220.231.79.238	PTR	mail.ttctiengiang.vn
220.231.79.238	PTR	mail.ttcplastic.vn
220.231.80.0	PTR	localhost
220.231.80.2	A	thinh731969.synology.me
220.231.80.2	A	www.thinh731969.synology.me
220.231.81.148	PTR	atl.vn
220.231.81.148	PTR	vnfocus.vn
220.231.81.148	A+PTR	atl.com.vn
220.231.81.167	PTR	ect.vn
220.231.81.167	PTR	espeed.com.vn
220.231.82.100	PTR	maruichisunsteel.com
220.231.82.100	A+PTR	mail.maruichisunsteel.com
220.231.82.100	A	mail.sunsteeljsc.com
220.231.82.141	A+PTR	mail.yev.vn
220.231.82.141	A	mail1.yev.vn
220.231.82.158	PTR	reeland.com.vn
220.231.82.158	A	reeland.vn
220.231.83.16	PTR	mail.adtdecor.com.vn
220.231.83.131	PTR	asao.com.vn
220.231.84.137	PTR	aacorporation.com.vn
220.231.88.21	A	mail.premierenglish.net
220.231.88.32	PTR	localhost
220.231.88.100	A	mail.generali-life.com.vn
220.231.88.107	A	genvita.vn
220.231.88.107	A	www.genvita.vn
220.231.88.109	A	vita-song-nhu-y.genvita.vn
220.231.88.194	PTR	localhost
220.231.88.196	A	mail.tinhyeumongmo.vn
220.231.88.196	A	mail.mamnonbambi.edu.vn
220.231.88.198	A	ttcgroup.vn
220.231.88.203	A	www.sacomreal.com
220.231.88.203	A	danghuynh.vn
220.231.88.242	A	mail.thunglungtinhyeu.vn
220.231.89.35	A+PTR	mail2.theodorealexander.com
220.231.89.35	A	mx2.theodorealexander.com
220.231.89.77	A	mail.pvd.vn
220.231.89.83	A	mail1.globaldyeing.com
220.231.89.105	A	mx3.fashiongarments.com
220.231.89.106	A	fashiongarments.com
220.231.89.109	A	mail.fashiongarments.com
220.231.89.109	A	mx1.fashiongarments.com
220.231.89.185	A	ns1.suckhoevang.vn
220.231.89.185	A	ns1.gpdd.vn
220.231.89.186	A	mail.tmasolutions.com
220.231.89.186	A	mail.ttc.edu.vn
220.231.90.59	PTR	mx2.dai-ichi-life.com.vn
220.231.90.61	A	ns2.dai-ichi-life.net
220.231.90.99	PTR	mail.tecs.com.vn
220.231.90.107	PTR	smtp.pvgas.com.vn
220.231.90.150	A+PTR	smtp.cathay-ins.com.vn
220.231.90.150	A	ns1.cathay-ins.com.vn
220.231.90.154	A	ns2.cathay-ins.com.vn
220.231.90.155	A	www.cathay-ins.com.vn
220.231.91.58	A	ns3.pvgas.com.vn
220.231.91.114	A	mail.tinnghia.com.vn
220.231.91.195	PTR	localhost
220.231.91.242	A	mail.binhthuantourism.vn
220.231.91.242	A	mail.docletresort.com.vn
220.231.91.242	A	mail.ttcenergy.vn
220.231.92.30	PTR	sida.hcmulaw.edu.vn
220.231.92.230	A	ibanking.saigonbank.com.vn
220.231.93.18	A	hui.edu.vn
220.231.93.18	A	cspb.hui.edu.vn
220.231.93.18	A	ttcnpm.hui.edu.vn
220.231.93.46	PTR	mail.tdt.edu.vn
220.231.93.51	PTR	mail.tdt.edu.vn
220.231.93.65	PTR	ns1.sbsc.com.vn
220.231.93.65	A	ns2.sbsc.com.vn
220.231.93.65	A	mail.sbsc.com.vn
220.231.93.66	PTR	mail.sbsc.com.vn
220.231.93.66	A	www.strade.com.vn
220.231.93.66	A	strade.com.vn
220.231.93.67	PTR	mail.sbsc.com.vn
220.231.93.68	PTR	m68.sbsc.com.vn
220.231.93.99	PTR	mail.rissaigon.edu.vn
220.231.93.116	PTR	mail.baoangiang.com.vn
220.231.93.131	PTR	smtp.ptsc.com.vn
220.231.93.132	A+PTR	pop.ptsc.com.vn
220.231.93.132	A	mailpma.ptsc.com.vn
220.231.93.133	A	smtp1.ptsc.com.vn
220.231.93.133	A	mail-vtu.ptsc.com.vn
220.231.93.134	PTR	smtp.ptsc.com.vn
220.231.93.209	A	www.sags.vn
220.231.93.209	A	sags.vn
220.231.93.211	A+PTR	mail.sags.vn
220.231.93.212	PTR	mail.saam.vn
220.231.93.250	PTR	mail.kusto.com.vn
220.231.93.251	PTR	mail.btadi.com
220.231.94.34	PTR	mail.renewtek.vn
220.231.94.75	PTR	mail.namyangsm.com
220.231.94.112	PTR	vitranschart.com.vn
220.231.94.113	PTR	vitranschart.com.vn
220.231.94.114	PTR	vitranschart.com.vn
220.231.94.115	PTR	vitranschart.com.vn
220.231.94.115	A	mx4.vitranschart.vn
220.231.94.115	A	mx4.vitranschart.com.vn
220.231.94.137	A+PTR	mail.chungkhoanphuongnam.com.vn
220.231.94.137	A	mail.funan.com.vn
220.231.94.138	PTR	chungkhoanphuongnam.com.vn
220.231.94.250	PTR	ecuhcm.eculine.net
220.231.95.34	PTR	mail.donglam.com.vn