Robtex

Up: 101.99.32.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 101.99.32.0/23
Down right: 101.99.34.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
101.99.32.6	A+PTR	mail.congtyhai.com
101.99.32.13	PTR	static.cmcti.vn
101.99.32.61	PTR	static.cmcti.vn
101.99.32.108	A	amazingcoffee.vn
101.99.32.108	A	www.amazingcoffee.vn
101.99.32.118	PTR	static.cmcti.vn
101.99.32.133	PTR	static.cmcti.vn
101.99.32.133	A	binhart.com
101.99.32.133	A	tictacvn.com
101.99.32.140	PTR	static.cmcti.vn
101.99.32.140	A	mail.pantrading.com.vn
101.99.32.140	A	forum.mayvesinhcongnghiep.com.vn
101.99.32.162	PTR	static.cmcti.vn
101.99.32.162	A	mail.vina-kinden.com
101.99.32.219	PTR	static.cmcti.vn
101.99.32.219	A	mail.anamqtspa.com
101.99.32.224	A	*.ndex.net
101.99.32.224	A	www.manage.vn
101.99.32.224	A	ns3.ndex.net
101.99.32.228	PTR	static.cmcti.vn
101.99.32.233	A	mail.phongkhammat.net
101.99.32.233	A	phongkhammat.net
101.99.32.238	PTR	static.cmcti.vn
101.99.32.242	PTR	ficombank.com.vn
101.99.33.2	PTR	static.cmcti.vn
101.99.33.50	PTR	static.cmcti.vn
101.99.33.50	A	mx.vietsuntravel.net
101.99.33.76	PTR	static.cmcti.vn
101.99.33.76	A	cf2.dnsalias.com
101.99.33.103	PTR	mail.activate.com.vn
101.99.33.110	PTR	static.cmcti.vn
101.99.33.110	A	itleaderclub.org
101.99.33.110	A	itleaderclub.net
101.99.33.199	PTR	static.cmcti.vn
101.99.33.201	PTR	static.cmcti.vn
101.99.33.211	PTR	static.cmcti.vn
101.99.33.211	A	www.congnghevn.net
101.99.33.211	A	dinhvitimxe.com
101.99.33.243	A	itsj-group.com
101.99.33.249	PTR	static.cmcti.vn
101.99.33.249	A	du-lich.com.vn
101.99.33.249	A	www.muadienthoai.com.vn
101.99.34.13	A	ac6303.iview.hk
101.99.34.26	A	mail.cogioiviet.com
101.99.34.26	A	data.structon.net
101.99.34.40	PTR	static.cmcti.vn
101.99.34.51	PTR	static.cmcti.vn
101.99.34.51	A	phatthuan.com
101.99.34.51	A	mx0.phatthuan.com
101.99.34.52	PTR	static.cmcti.vn
101.99.34.52	A	thientinh.vn
101.99.34.100	PTR	static.cmcti.vn
101.99.34.140	PTR	static.cmcti.vn
101.99.34.232	A	www.toanthinhphat.vn
101.99.35.29	PTR	static.cmcti.vn
101.99.35.29	A	spcs.vn
101.99.35.46	PTR	static.cmcti.vn
101.99.35.61	PTR	static.cmcti.vn
101.99.35.81	PTR	static.cmcti.vn
101.99.35.182	PTR	static.cmcti.vn
101.99.35.218	PTR	static.cmcti.vn