Robtex

Up: 170.84.112.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 170.84.116.0/23
Down right: 170.84.118.0/23

IP	Type	Hostname
170.84.116.42	A+PTR	ns1.speedalliance.com.br
170.84.116.42	A	pop.speedalliance.com.br
170.84.116.42	A	net.speedalliance.com.br
170.84.116.43	A+PTR	ns2.speedalliance.com.br
170.84.116.229	PTR	ns1.speedalliance.com.br
170.84.116.229	A	speedalliance.com.br
170.84.116.234	A+PTR	234-116-84-170.speedalliance.com.br
170.84.116.234	A	mx03.adriano.eti.br
170.84.117.0	A	0-117-84-170.speedalliance.com.br
170.84.118.0	A	0-118-84-170.speedalliance.com.br
170.84.119.0	A	0-119-84-170.speedalliance.com.br