Robtex

Up: 210.245.56.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 210.245.60.0/23
Down right: 210.245.62.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
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	PTR	smtp.vn.auf.org
210.245.61.205	A	smtp.dananglug.org
210.245.61.225	PTR	dns1.centralbank.vn
210.245.61.226	PTR	dns2.centralbank.vn
210.245.61.229	PTR	www.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