Robtex

Up: 210.245.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 210.245.56.0/22
Down right: 210.245.60.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.245.56.36	PTR	mail.mt.gov.vn
210.245.56.37	PTR	mail1.mt.gov.vn
210.245.56.83	PTR	vinasecurities.com
210.245.56.84	PTR	vinasecurities.com
210.245.56.85	PTR	vinasecurities.com
210.245.56.86	PTR	vinasecurities.com
210.245.56.115	A+PTR	uvsvr01.usol-v.com.vn
210.245.56.118	A	www.usol-v.com.vn
210.245.56.147	A	mail.caa.gov.vn
210.245.56.149	A	webmail.attech.com.vn
210.245.56.150	PTR	mail.vatm.vn
210.245.56.210	PTR	mail.petrolimex.com.vn
210.245.56.210	PTR	rg100.petrolimex.com.vn
210.245.57.1	PTR	mail.htv.org.vn
210.245.57.75	PTR	mail.gdsr.gov.vn
210.245.57.163	PTR	mail.vips.com.vn
210.245.57.242	A	mail.chudauporcelain.vn
210.245.58.10	A+PTR	mail.vinatranshn.com.vn
210.245.58.11	A+PTR	mail.hanotrans.com.vn
210.245.58.13	A+PTR	mail.vntlogistics.com
210.245.58.35	A	mail.toshiba-tsdv.com
210.245.58.36	A	mail.tsdv.com.vn
210.245.58.125	PTR	mail.vinalines-shipping.com
210.245.58.164	A+PTR	mail.gpgroup.vn
210.245.58.164	A	mail.vnstockmart.com.vn
210.245.58.195	A	vinabooking.com
210.245.59.25	PTR	mail.vnsc.com.vn
210.245.59.25	A	mail.vns.com.vn
210.245.59.84	A	smtp.vtrac.com.vn
210.245.59.92	A+PTR	mailfe.vtrac.com.vn
210.245.59.92	A	mail.vtrac.com.vn
210.245.59.94	A	mail1.v-trac.com
210.245.59.130	A	*.payring.net
210.245.59.130	A	www.payring.net
210.245.59.130	A	payring.net
210.245.59.170	PTR	mail.vinashinlines.com
210.245.59.230	A	mail.nhms.gov.vn
210.245.60.22	PTR	mail.unfpa.org.vn
210.245.60.44	PTR	mail.tungshinggroup.com.vn
210.245.60.45	PTR	mail.tsghn.com.vn
210.245.60.74	A	www.intec.gov.vn
210.245.60.74	A	intec.gov.vn
210.245.60.75	A	buyvietnam.com.vn
210.245.60.75	A	www.buyvietnam.com.vn
210.245.60.93	PTR	mail.habubank.com.vn
210.245.60.106	PTR	mail.dtsoftvn.com
210.245.60.118	PTR	mail.div.gov.vn
210.245.60.156	PTR	mail.ptsc.com.vn
210.245.60.162	PTR	mail.plc.com.vn
210.245.60.222	PTR	mail.business.gov.vn
210.245.60.228	A+PTR	mail.vovnews.vn
210.245.60.235	A	vovtc.vov.vn
210.245.60.242	A	5a7b6ecf8f3e5.streamlock.net
210.245.61.61	PTR	mail.imech.ac.vn
210.245.61.101	A	vinaconex6.com
210.245.61.131	A+PTR	mail.gsi.vn
210.245.61.131	A+PTR	mail.msgs.com.vn
210.245.61.133	PTR	mail.gsi.vn
210.245.61.133	PTR	mail.msgs.com.vn
210.245.61.134	PTR	mail.gsi.vn
210.245.61.134	PTR	mail.msgs.com.vn
210.245.61.205	A	smtp.dananglug.org
210.245.61.225	PTR	dns1.centralbank.vn
210.245.61.226	PTR	dns2.centralbank.vn
210.245.62.44	A+PTR	mail.vngrid.ac.vn
210.245.62.46	PTR	mail.ioit.ac.vn
210.245.62.106	PTR	mail.hbse.vn
210.245.62.106	PTR	mail.hbse.com.vn
210.245.62.107	PTR	mail.hbse.com.vn
210.245.62.108	A	mail.igi.vn
210.245.62.125	PTR	iboxmedia.com
210.245.62.125	PTR	astec.vn
210.245.62.125	PTR	eyenet.vn
210.245.62.126	PTR	astec.vn
210.245.62.130	A	mail.noreply.kls.vn
210.245.62.131	A+PTR	mail.3nana.vn
210.245.62.131	PTR	mail.gli.vn
210.245.62.131	PTR	mail.zaia.vn
210.245.62.134	PTR	smtp.kls.vn
210.245.63.4	PTR	mail.fpts.com.vn
210.245.63.4	A	smtp.fpts.com.vn
210.245.63.5	PTR	mail2.fpts.com.vn
210.245.63.6	PTR	smtp.fpts.com.vn
210.245.63.6	A	mail.fpts.com.vn
210.245.63.29	A	nasb.com.vn
210.245.63.30	A+PTR	mail.nasb.com.vn
210.245.63.86	PTR	vpb.com.vn
210.245.63.125	A	mail.varans.vn
210.245.63.221	A	ptcntt.com
210.245.63.241	PTR	mail.igi.com.vn
210.245.63.246	PTR	mail.igi.vn