Robtex

Up: 177.129.16.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 177.129.16.0/25
Down right: 177.129.16.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
177.129.16.76	PTR	177.129.16.76.cache.google.com
177.129.16.76	A	r1.sn-gxq4vmcg-bg0e.c.android.clients.google.com
177.129.16.76	A	r1---sn-gxq4vmcg-bg0e.googlevideo.com
177.129.16.77	PTR	177.129.16.77.cache.google.com
177.129.16.77	A	r2.sn-gxq4vmcg-bg0e.gvt1.com
177.129.16.77	A	r2---sn-gxq4vmcg-bg0e.googlevideo.com
177.129.16.78	PTR	177.129.16.78.cache.google.com
177.129.16.78	A	r3.sn-gxq4vmcg-bg0e.googlevideo.com
177.129.16.78	A	r3.sn-gxq4vmcg-bg0e.c.android.clients.google.com
177.129.16.83	PTR	177.129.16.83.cache.google.com
177.129.16.166	A+PTR	177.129.16.166.redfoxtelecom.com.br
177.129.16.166	A	ipv4-c002-gru001-redfox-isp.1.oca.nflxvideo.net
177.129.16.209	A+PTR	177.129.16.209.redfoxtelecom.com.br
177.129.16.209	A	scontent.fgru9-1.fna.fbcdn.net
177.129.16.210	A+PTR	177.129.16.210.redfoxtelecom.com.br
177.129.16.210	A	video.fgru9-1.fna.fbcdn.net
177.129.16.222	A+PTR	177.129.16.222.redfoxtelecom.com.br
177.129.16.222	A	sonar.fgru9-1.fna.fbcdn.net
177.129.16.224	A+PTR	177.129.16.224.redfoxtelecom.com.br
177.129.16.224	A	z-p3-scontent.fgru9-1.fna.fbcdn.net
177.129.16.225	A+PTR	177.129.16.225.redfoxtelecom.com.br
177.129.16.225	A	instagram.fgru9-1.fna.fbcdn.net
177.129.16.226	A+PTR	177.129.16.226.redfoxtelecom.com.br
177.129.16.226	A	media.fgru9-1.fna.whatsapp.net