Robtex

Up: 216.230.32.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 216.230.32.0/23
Down right: 216.230.34.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.230.32.21	PTR	216.230.32.21.host.smartcity.net
216.230.32.21	A	kejutan2020.com
216.230.32.21	A	ikawa.co
216.230.34.2	A+PTR	216.230.34.2.host.smartcity.net
216.230.34.21	A	kejutan2020.com
216.230.34.21	A	thietbiytevathuoc.com
216.230.34.21	A	jbalelang.com