Robtex

Up: 179.106.66.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 179.106.66.0/25
Down right: 179.106.66.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
179.106.66.2	PTR	ns3.hnnet.com.br
179.106.66.2	A+PTR	ns1.sudoeste.net.br
179.106.66.2	A	mateushoteis.com.br
179.106.66.4	A+PTR	ns2.sudoeste.net.br
179.106.66.4	A	ns4.hnnet.com.br
179.106.66.4	A	ns2.mateushoteis.com.br