Robtex

Up: 116.104.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 116.104.84.0/23
Down right: 116.104.86.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
116.104.84.12	PTR	dynamic-adsl.viettel.vn
116.104.84.12	A	kyoryo.com.vn
116.104.84.12	A	isuzuhanoi.com
116.104.85.36	A+PTR	mta.vicostone.com
116.104.85.36	A	mail.stonevietnam.com
116.104.85.105	A	club.bambooairways.com
116.104.85.190	A	gw.actfpcvn.com
116.104.86.99	PTR	dynamic-ip-adsl.viettel.vn
116.104.86.99	A	dhcnhn.vn
116.104.86.99	A	cdn-01.dhcnhn.vn