Robtex

Up: 170.247.24.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 170.247.28.0/23
Down right: 170.247.30.0/23

IP	Type	Hostname
170.247.28.0	PTR	170-247-28-0.bital.psi.br
170.247.28.12	A	r1.sn-fpgxapo3-na1e.gvt1.com
170.247.28.12	A	r1.sn-fpgxapo3-na1e.googlevideo.com
170.247.28.13	PTR	170-247-28-13.bital.psi.br
170.247.28.13	A	r2.sn-fpgxapo3-na1e.gvt1.com
170.247.28.13	A	r2.sn-fpgxapo3-na1e.googlevideo.com
170.247.28.14	PTR	170-247-28-14.b1t.net.br
170.247.28.15	PTR	170-247-28-15.b1t.net.br
170.247.28.69	PTR	170-247-28-69.b1t.net.br
170.247.28.69	A	ipv4-c001-slz001-wirelink-isp.1.oca.nflxvideo.net
170.247.28.140	PTR	170-247-28-140.b1t.net.br
170.247.28.140	A	r1.sn-cpu5acg-na1e.googlevideo.com
170.247.28.141	PTR	170-247-28-141.b1t.net.br
170.247.28.141	A	r2.sn-cpu5acg-na1e.googlevideo.com
170.247.28.209	PTR	170-247-28-209.b1t.net.br
170.247.28.209	A	scontent.fslz5-1.fna.fbcdn.net
170.247.28.225	PTR	170-247-28-225.b1t.net.br
170.247.28.225	A	instagram.fslz5-1.fna.fbcdn.net
170.247.28.226	PTR	170-247-28-226.b1t.net.br
170.247.28.226	A	media.fslz5-1.fna.whatsapp.net
170.247.28.243	A+PTR	dns1.b1t.net.br
170.247.28.249	A+PTR	dns2.b1t.net.br
170.247.31.146	PTR	170-247-31-146.b1t.net.br
170.247.31.255	PTR	170-247-31-255.bital.psi.br