Robtex

Up: 199.115.152.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 199.115.152.0/23
Down right: 199.115.154.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
199.115.152.1	A+PTR	a0.xxx.afilias-nst.info
199.115.152.1	A	a0.nic.adult
199.115.152.1	A	a0.nic.sex
199.115.153.1	PTR	b0.xxx.afilias-nst.org
199.115.153.1	A	b0.nic.porn
199.115.153.1	A	b0.xxx.afilias-nst.info
199.115.154.1	A+PTR	c0.xxx.afilias-nst.info
199.115.154.1	A	aadoona.com
199.115.154.1	A	c0.nic.adult
199.115.155.1	A+PTR	d0.xxx.afilias-nst.org
199.115.155.1	A	d0.nic.porn
199.115.155.1	A	d0.nic.sex