Robtex

Up: 170.246.200.0/21
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Down left: 170.246.200.0/23
Down right: 170.246.202.0/23

IP	Type	Hostname
170.246.200.12	PTR	cache.google.com
170.246.200.12	A	r1.sn-uj5cg-2v5e.googlevideo.com
170.246.200.12	A	r1.sn-uj5cg-2v5e.gvt1.com
170.246.200.13	PTR	cache.google.com
170.246.200.13	A	r2.sn-uj5cg-2v5e.googlevideo.com
170.246.200.13	A	r2.sn-uj5cg-2v5e.gvt1.com
170.246.202.4	PTR	tcatv.tca.com.br
170.246.202.4	A	tca.tv.br