Robtex

Up: 201.49.80.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 201.49.81.0/25
Down right: 201.49.81.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
201.49.81.12	PTR	isp.ensite-sjp1.cache.google.com
201.49.81.12	A	r1.sn-xonpux-nw2e.gvt1.com
201.49.81.12	A	r1---sn-xonpux-nw2e.googlevideo.com
201.49.81.13	PTR	isp.ensite-sjp1.cache.google.com
201.49.81.13	A	r2---sn-xonpux-nw2e.googlevideo.com
201.49.81.13	A	r2.sn-xonpux-nw2e.gvt1.com
201.49.81.98	PTR	c001.sjp001.ensite.isp.nflxvideo.net
201.49.81.98	A	ipv4-c001-sjp001-ensite-isp.1.oca.nflxvideo.net
201.49.81.98	A	ipv4_1.lagg0.c001.sjp001.ensite.isp.nflxvideo.net
201.49.81.145	PTR	201-49-80-145.ensite.isp.fsjp2-1.fna.fbcdn.net
201.49.81.145	A	scontent.fsjp2-1.fna.fbcdn.net
201.49.81.145	A	external.fsjp2-1.fna.fbcdn.net
201.49.81.146	PTR	201-49-80-146.ensite.isp.fsjp2-1.fna.fbcdn.net
201.49.81.146	A	video.fsjp2-1.fna.fbcdn.net
201.49.81.158	PTR	201-49-80-158.ensite.isp.fsjp2-1.fna.fbcdn.net
201.49.81.158	A	201-49-80-145.ensite.isp.fsjp2-1.fna.fbcdn.net
201.49.81.158	A	201-49-80-162.ensite.isp.fsjp2-1.fna.fbcdn.net
201.49.81.160	PTR	201-49-80-160.ensite.isp.fsjp2-1.fna.fbcdn.net
201.49.81.160	A	instagram.fsjp2-1.fna.fbcdn.net
201.49.81.162	PTR	201-49-80-162.ensite.isp.fsjp2-1.fna.fbcdn.net
201.49.81.162	A	z-p3-scontent.fsjp2-1.fna.fbcdn.net