Robtex

Up: 177.52.144.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 177.52.144.0/22
Down right: 177.52.148.0/22

IP	Type	Hostname
177.52.144.2	A+PTR	dns1.ouronetonline.com.br
177.52.144.2	A	ouronet.net.br
177.52.144.2	A	dns1.ouronet.net.br
177.52.144.3	A+PTR	dns2.ouronetonline.com.br
177.52.144.3	A	ouronet.net.br
177.52.144.4	A	ouronet.net.br
177.52.144.122	PTR	dns1.ouronetonline.net.br
177.52.144.130	PTR	rt.cli01.ouronetonline.com.br
177.52.145.146	A+PTR	brsul.majestade.com.br
177.52.150.29	A	mknetwork.com.br