Robtex

Up: 201.49.72.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 201.49.74.0/24
Down right: 201.49.75.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
201.49.74.53	PTR	ns2.maxcomm.com.br
201.49.74.115	A+PTR	mx.compusoft-info.com.br
201.49.74.115	A	ns1.compusoft-info.com.br
201.49.74.115	A	csinformatica.com.br
201.49.74.178	A+PTR	mail.vivianimotors.com.br
201.49.74.178	A	dns2.vivianimotors.com.br
201.49.74.178	A	server.vivianimotors.com.br
201.49.74.243	PTR	mail.tecnomegait.com.br
201.49.74.243	A	mailserver.seca.com.br