Robtex

Up: 115.75.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 115.75.32.0/20
Down right: 115.75.48.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
115.75.32.54	PTR	adsl.viettel.vn
115.75.32.54	A	cic32.com.vn
115.75.32.142	PTR	adsl.viettel.vn
115.75.33.109	A	mail1.yev.vn
115.75.33.220	A	mail.dbox.vn
115.75.33.220	A	dbox.vn
115.75.34.115	PTR	adsl.viettel.vn
115.75.35.45	A	trambabo.com
115.75.35.231	PTR	adsl.viettel.vn
115.75.35.247	A	3nterprise.com
115.75.35.247	A	soclshops.com
115.75.36.216	A	daitien.com
115.75.37.199	A	1588vn.com
115.75.37.199	A	vanphatfood.com
115.75.37.199	A	www.wow-vn.asia
115.75.39.140	PTR	adsl.viettel.vn
115.75.39.249	PTR	adsl.viettel.vn
115.75.39.254	A	www.3mat.com.vn
115.75.41.2	PTR	adsl.viettel.vn
115.75.42.65	PTR	adsl.viettel.vn
115.75.42.130	PTR	adsl.viettel.vn
115.75.42.131	PTR	adsl.viettel.vn
115.75.43.97	PTR	adsl.viettel.vn
115.75.43.162	PTR	adsl.viettel.vn
115.75.43.195	PTR	adsl.viettel.vn
115.75.46.209	PTR	adsl.viettel.vn
115.75.50.130	PTR	adsl.viettel.vn
115.75.50.195	PTR	adsl.viettel.vn
115.75.51.0	PTR	adsl.viettel.vn
115.75.51.153	A	bongshop.com.vn
115.75.51.153	A	vnipos.com
115.75.51.153	A	nhalumi.com
115.75.52.177	PTR	adsl.viettel.vn
115.75.56.152	A	www.sannick247.com
115.75.56.152	A	thumuanick.com
115.75.56.152	A	81fullgame.com
115.75.56.193	PTR	adsl.viettel.vn
115.75.56.224	PTR	adsl.viettel.vn
115.75.57.110	PTR	adsl.viettel.vn
115.75.59.235	PTR	adsl.viettel.vn
115.75.61.162	PTR	adsl.viettel.vn
115.75.63.123	PTR	adsl.viettel.vn