Robtex

Up: 179.245.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 179.245.128.0/18
Down right: 179.245.192.0/18

IP	Type	Hostname
179.245.142.0	PTR	179-245-142-0.user.vivozap.com.br
179.245.144.29	PTR	179-245-144-29.user.vivozap.com.br
179.245.188.235	PTR	179-245-188-235.user.vivozap.com.br
179.245.232.160	PTR	179-245-232-160.user.vivozap.com.br