Robtex

Up: 210.245.8.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 210.245.12.0/23
Down right: 210.245.14.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.245.12.12	A	tddg.mpi.gov.vn
210.245.12.24	A	giaychungnhan.pti.com.vn
210.245.12.28	A	webmail.pti.com.vn
210.245.12.28	A	mail.pti.com.vn
210.245.12.56	A	vnastock.vietnamair.com.vn
210.245.12.76	A	hoctienganhfree.com
210.245.12.101	A	fbox-sources.fpt.vn
210.245.12.130	A	vcrxapi.topica.vn
210.245.12.141	A	socket-uat-kidtopi.topica.vn
210.245.12.141	A	html5lms.topicanative.edu.vn
210.245.12.145	A	qlhl.topicanative.edu.vn
210.245.12.202	PTR	mail.vea.gov.vn
210.245.12.202	A	mail.nea.gov.vn
210.245.12.210	A	dhcd.edu.vn
210.245.12.210	A	www.dhcd.edu.vn
210.245.12.218	A	www.vnpay.vn
210.245.12.218	A	biennho.vn
210.245.12.218	A	www.vntopup.vn
210.245.12.220	A	www.agribankemobilebanking.vn
210.245.12.220	A	agribankemobilebanking.vn
210.245.12.221	A	forum.vnpay.vn
210.245.12.221	A	mail.vntopup.vn
210.245.13.4	A	skybox.pvep.com.vn
210.245.13.8	A+PTR	mail.pvep.com.vn
210.245.13.11	A+PTR	smtp.pvep.com.vn
210.245.13.11	A	keys.pvep.com.vn
210.245.13.35	PTR	mail.gdt.gov.vn
210.245.13.37	A	thuevietnam.gov.vn
210.245.13.46	PTR	mail.gdt.gov.vn
210.245.13.60	A	www.tncnonline.vn
210.245.13.60	A	tncnonline.vn
210.245.13.77	A	nro.vietnamair.com.vn
210.245.13.85	A	sftp.vietnamair.com.vn
210.245.13.88	A	glp.vietnamairlines.com
210.245.13.91	A	etsrv.vietnamairlines.com.vn
210.245.13.146	A	hhj.vn
210.245.13.147	A	lib.hlu.edu.vn
210.245.13.147	A	tnlc.edu.vn
210.245.13.149	A	dangkyhoc.hlu.edu.vn
210.245.13.150	A	www.hlu.edu.vn
210.245.13.150	A	hlu.edu.vn
210.245.13.150	A	daihocluathn.edu.vn
210.245.13.153	A	shs.com.vn
210.245.13.153	A	www.shs.com.vn
210.245.13.154	A+PTR	smtp.shs.com.vn
210.245.13.155	A+PTR	mail.shs.com.vn
210.245.13.157	A	online.shs.com.vn
210.245.13.163	PTR	mail.hsph.edu.vn
210.245.13.163	A	chililab.org
210.245.13.167	A	sotttt.caobang.gov.vn
210.245.13.167	A	sotuphap.caobang.gov.vn
210.245.13.167	A	sokhdt.caobang.gov.vn
210.245.13.170	A	elearning.hsph.edu.vn
210.245.13.177	PTR	mail.vpbs.com.vn
210.245.13.179	PTR	mail.vpbs.com.vn
210.245.13.181	PTR	gateway.vpbs.com.vn
210.245.13.183	A	hk002.dp-business.com
210.245.13.184	A+PTR	mail.vpbs.com.vn
210.245.13.185	A+PTR	gateway.vpbs.com.vn
210.245.13.186	A+PTR	gateway-02.vpbs.com.vn
210.245.13.187	A+PTR	vpbs.com.vn
210.245.13.187	A	gateway-02.vpbs.com.vn
210.245.13.190	A	webtrade.vpbs.com.vn
210.245.13.212	A	lyncdiscover.fsoft.com.vn
210.245.13.222	A+PTR	mail.fsoft.com.vn
210.245.13.222	A	autodiscover.fsoft.com.vn
210.245.13.238	A	mgw.harveynash.com.vn
210.245.13.250	A	lync-webservices-01.fsoft.com.vn
210.245.13.250	A	mail.fptusa.com
210.245.13.251	A+PTR	mail.harveynash.com.vn
210.245.14.1	PTR	cache.google.com
210.245.14.12	PTR	cache.google.com
210.245.14.12	A	r1---sn-42u-i5oz.googlevideo.com
210.245.14.12	A	r1.sn-42u-i5oz.googlevideo.com
210.245.14.13	PTR	cache.google.com
210.245.14.13	A	r2.sn-42u-i5oz.gvt1.com
210.245.14.14	PTR	cache.google.com
210.245.14.16	PTR	cache.google.com
210.245.14.16	A	r5.sn-42u-i5oz.googlevideo.com
210.245.14.16	A	r5---sn-42u-i5oz.googlevideo.com
210.245.14.17	PTR	cache.google.com
210.245.14.17	A	r6---sn-42u-i5oz.googlevideo.com
210.245.14.18	A	r7---sn-42u-i5oz.googlevideo.com
210.245.14.32	PTR	cache.google.com
210.245.14.76	A	r1.sn-42u-i5os.gvt1.com
210.245.14.76	A	r1---sn-42u-i5os.googlevideo.com
210.245.14.77	PTR	cache.google.com
210.245.14.77	A	r2.sn-42u-i5os.gvt1.com
210.245.14.77	A	r2---sn-42u-i5os.gvt1.com
210.245.14.78	PTR	cache.google.com
210.245.14.79	PTR	cache.google.com
210.245.14.80	PTR	cache.google.com
210.245.14.80	A	r5.sn-42u-i5os.googlevideo.com
210.245.14.80	A	r5---sn-42u-i5os.googlevideo.com
210.245.14.81	PTR	cache.google.com
210.245.14.82	PTR	cache.google.com
210.245.14.82	A	r7---sn-42u-i5os.googlevideo.com
210.245.14.83	PTR	cache.google.com
210.245.14.93	PTR	cache.google.com
210.245.14.131	PTR	cache.google.com
210.245.14.137	PTR	cache.google.com
210.245.14.140	A	r1.sn-42u-i5oe.gvt1.com
210.245.14.140	A	r1---sn-42u-i5oe.googlevideo.com
210.245.14.141	PTR	cache.google.com
210.245.14.141	A	r2---sn-42u-i5oe.googlevideo.com
210.245.14.141	A	r2.sn-42u-i5oe.gvt1.com
210.245.14.142	PTR	cache.google.com
210.245.14.144	A	r5---sn-42u-i5oe.googlevideo.com
210.245.14.144	A	r5.sn-42u-i5oe.gvt1.com
210.245.14.145	PTR	cache.google.com
210.245.14.145	A	r6.sn-42u-i5oe.gvt1.com
210.245.14.146	PTR	cache.google.com
210.245.14.146	A	r7---sn-42u-i5oe.googlevideo.com
210.245.14.196	PTR	cache.google.com
210.245.14.204	PTR	cache.google.com
210.245.14.204	A	r1---sn-42u-i5ol.googlevideo.com
210.245.14.205	PTR	cache.google.com
210.245.14.205	A	r2---sn-42u-i5ol.googlevideo.com
210.245.14.205	A	r2.sn-42u-i5ol.googlevideo.com
210.245.14.206	A	r3.sn-42u-i5ol.gvt1.com
210.245.14.207	PTR	cache.google.com
210.245.14.208	PTR	cache.google.com
210.245.14.208	A	r5---sn-42u-i5ol.googlevideo.com
210.245.14.208	A	r5.sn-42u-i5ol.gvt1.com
210.245.14.209	PTR	cache.google.com
210.245.14.209	A	r6---sn-42u-i5ol.googlevideo.com
210.245.14.209	A	r6.sn-42u-i5ol.gvt1.com
210.245.14.210	PTR	cache.google.com
210.245.14.211	PTR	cache.google.com
210.245.14.231	PTR	cache.google.com
210.245.15.7	PTR	ras07.fpt.vn
210.245.15.101	A	thienlam.net