Robtex

Up: 170.245.200.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 170.245.200.0/23
Down right: 170.245.202.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
170.245.200.37	PTR	grv.redesiminternet.com.br
170.245.200.109	A+PTR	ns2.vamoshospedar.com.br
170.245.200.110	PTR	ns1.vamoshospedar.com.br
170.245.200.110	A	mail.vamoshospedar.com.br
170.245.200.110	A	vamoshospedar.com.br
170.245.202.18	PTR	rin.hdinternet.com.br
170.245.202.34	A	sim.cvg.ind.br
170.245.202.34	A	cvg.ind.br
170.245.202.210	A	mail2.solidabrasil.com.br
170.245.203.12	PTR	speedtest.siminternet.com.br
170.245.203.12	A	speedtest.simfibra.com.br