Robtex

Up: 179.235.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 179.235.64.0/22
Down right: 179.235.68.0/22

IP	Type	Hostname
179.235.64.217	PTR	b3eb40d9.virtua.com.br
179.235.65.168	PTR	b3eb41a8.virtua.com.br
179.235.65.192	PTR	b3eb41c0.virtua.com.br
179.235.67.6	PTR	b3eb4306.virtua.com.br
179.235.69.123	PTR	b3eb457b.virtua.com.br