Robtex

Up: 189.89.176.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 189.89.176.0/23
Down right: 189.89.178.0/23

IP	Type	Hostname
189.89.177.11	PTR	189-89-177-11.static.itsweb.com.br
189.89.177.27	PTR	189-89-177-27.static.itsweb.com.br
189.89.177.40	PTR	189-89-177-40.static.itsweb.com.br
189.89.177.75	PTR	189-89-177-75.static.itsweb.com.br
189.89.177.86	PTR	189-89-177-86.static.itsweb.com.br
189.89.178.17	PTR	189-89-178-17.static.itsweb.com.br