Robtex

Up: 117.4.240.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 117.4.240.0/24
Down right: 117.4.241.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
117.4.240.22	PTR	bip.com.vn
117.4.240.49	A	pvps.vn
117.4.240.104	A	aitcvn.com
117.4.240.130	PTR	localhost
117.4.240.140	A	vcc.vnisg.com
117.4.240.140	A	mail.pinexco.com
117.4.240.140	A	vnisg.com
117.4.240.186	PTR	pa.host999.net
117.4.240.186	A	mail.raovat.info
117.4.240.186	A	*.vieclam.info
117.4.240.198	PTR	localhost
117.4.240.214	PTR	localhost
117.4.240.239	PTR	localhost
117.4.241.3	PTR	localhost
117.4.241.17	PTR	localhost
117.4.241.17	A	mail.hdtex.group
117.4.241.17	A	mail.canifa.com
117.4.241.20	A	trangtraithudo.com
117.4.241.20	A	hostmaster.sieubanle.com
117.4.241.20	A	www.tinhoc24h.com
117.4.241.34	PTR	localhost
117.4.241.61	PTR	localhost
117.4.241.61	A	mail.ifcvietnam.com.vn
117.4.241.81	PTR	localhost
117.4.241.129	PTR	localhost
117.4.241.131	PTR	localhost
117.4.241.135	PTR	localhost
117.4.241.135	A	uchi.vn
117.4.241.135	A	www.adfilex.vn
117.4.241.160	PTR	localhost
117.4.241.187	PTR	localhost
117.4.241.212	PTR	localhost