Robtex

Up: 201.6.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 201.6.32.0/20
Down right: 201.6.48.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
201.6.33.129	PTR	c9062181.virtua.com.br
201.6.35.129	PTR	c9062381.virtua.com.br
201.6.36.129	PTR	c9062481.virtua.com.br
201.6.37.129	PTR	c9062581.virtua.com.br
201.6.43.162	PTR	c9062ba2.virtua.com.br
201.6.46.3	PTR	c9062e03.virtua.com.br
201.6.47.12	A	r1.sn-oxunxg8pjvn-bg0r.googlevideo.com
201.6.47.12	A	r1.sn-oxunxg8pjvn-bg0r.gvt1.com
201.6.47.13	A	r2.sn-oxunxg8pjvn-bg0r.gvt1.com
201.6.47.13	A	r2.sn-oxunxg8pjvn-bg0r.googlevideo.com
201.6.48.12	A	r1---sn-oxunxg8pjvn-bg0d.gvt1.com
201.6.48.13	A	r2.sn-oxunxg8pjvn-bg0d.gvt1.com
201.6.48.13	A	r2---sn-oxunxg8pjvn-bg0d.googlevideo.com
201.6.48.14	A	r3---sn-oxunxg8pjvn-bg0d.googlevideo.com
201.6.48.76	A	r1.sn-oxunxg8pjvn-bg0k.googlevideo.com
201.6.48.76	A	r1---sn-oxunxg8pjvn-bg0k.googlevideo.com
201.6.48.76	A	r1---sn-oxunxg8pjvn-bg0k.gvt1.com
201.6.48.77	A	r2---sn-oxunxg8pjvn-bg0k.googlevideo.com
201.6.48.130	PTR	c9063082.virtua.com.br
201.6.48.130	A	ipv4-c004-cgh003-claro-br-net-isp.1.oca.nflxvideo.net
201.6.48.130	A	occ-0-782-1567.1.nflxso.net
201.6.48.134	A	occ-0-782-1567.1.nflxso.net
201.6.48.134	A	occ-1-782-1123.1.nflxso.net
201.6.48.134	A	occ-2-782-1567.1.nflxso.net
201.6.48.138	A	occ-0-782-1567.1.nflxso.net
201.6.48.138	A	occ-1-782-1123.1.nflxso.net
201.6.48.138	A	occ-2-782-1567.1.nflxso.net
201.6.48.142	A	occ-0-782-1567.1.nflxso.net
201.6.48.142	A	occ-1-782-1123.1.nflxso.net
201.6.48.142	A	occ-2-782-1567.1.nflxso.net
201.6.48.154	A	occ-0-1069-1123.1.nflxso.net
201.6.48.154	A	occ-2-1069-1123.1.nflxso.net
201.6.48.154	A	occ-1-1069-1123.1.nflxso.net
201.6.48.158	A	occ-0-1069-1123.1.nflxso.net
201.6.48.158	A	occ-2-1069-1123.1.nflxso.net
201.6.48.158	A	occ-1-1069-1123.1.nflxso.net
201.6.48.162	PTR	c90630a2.virtua.com.br
201.6.48.162	A	ipv4-c003-cgh004-claro-br-net-isp.1.oca.nflxvideo.net
201.6.48.162	A	occ-0-1069-1123.1.nflxso.net
201.6.48.166	A	occ-0-1069-1123.1.nflxso.net
201.6.48.166	A	occ-2-1069-1123.1.nflxso.net
201.6.48.166	A	occ-1-1069-1123.1.nflxso.net
201.6.48.170	A	occ-0-1069-1123.1.nflxso.net
201.6.48.170	A	occ-2-1069-1123.1.nflxso.net
201.6.48.170	A	occ-1-1069-1123.1.nflxso.net
201.6.49.162	PTR	c90631a2.virtua.com.br
201.6.49.194	PTR	c90631c2.virtua.com.br
201.6.51.161	PTR	c90633a1.virtua.com.br
201.6.52.17	A	scontent.fcgh23-1.fna.fbcdn.net
201.6.52.18	A	video.fcgh23-1.fna.fbcdn.net
201.6.52.32	A	z-p3-scontent.fcgh23-1.fna.fbcdn.net
201.6.52.33	A	instagram.fcgh23-1.fna.fbcdn.net
201.6.52.66	PTR	c9063442.virtua.com.br
201.6.52.66	A	occ-2-964-1123.1.nflxso.net
201.6.53.162	PTR	c90635a2.virtua.com.br
201.6.55.34	PTR	c9063722.virtua.com.br
201.6.56.150	A	ipv4-c008-gru004-claro-br-net-isp.1.oca.nflxvideo.net