Robtex

Up: 200.237.128.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 200.237.132.0/23
Down right: 200.237.134.0/23

IP	Type	Hostname
200.237.132.13	A+PTR	porta13.lan-smiguel-coffnet.as28624.oops.net.br
200.237.132.142	A+PTR	porta142.lan-smiguel-coffnet.as28624.oops.net.br
200.237.132.161	A+PTR	porta161.lan-smiguel-coffnet.as28624.oops.net.br
200.237.133.122	A+PTR	porta122.palmeira-cristovao.as28624.oops.net.br
200.237.135.52	A+PTR	porta52.teonet-2.as28624.oops.net.br
200.237.135.55	A+PTR	porta55.teonet-2.as28624.oops.net.br
200.237.135.107	A+PTR	porta107.teonet-2.as28624.oops.net.br
200.237.135.127	A+PTR	porta127.teonet-2.as28624.oops.net.br
200.237.135.134	A+PTR	porta134.teonet-2.as28624.oops.net.br
200.237.135.161	A+PTR	porta161.teonet-2.as28624.oops.net.br
200.237.135.162	A+PTR	porta162.teonet-2.as28624.oops.net.br
200.237.135.165	A+PTR	porta165.teonet-2.as28624.oops.net.br
200.237.135.172	A+PTR	porta172.teonet-2.as28624.oops.net.br
200.237.135.174	A+PTR	porta174.teonet-2.as28624.oops.net.br
200.237.135.175	A+PTR	porta175.teonet-2.as28624.oops.net.br
200.237.135.195	A+PTR	porta195.teonet-2.as28624.oops.net.br
200.237.135.222	A+PTR	porta222.teonet-2.as28624.oops.net.br
200.237.135.244	A+PTR	porta244.teonet-2.as28624.oops.net.br
200.237.135.244	A	www.teonet.com.br
200.237.135.246	A	teonet.com.br
200.237.135.246	A	mail.teonet.com.br
200.237.135.247	PTR	porta247.teonet-2.as28624.oops.net.br