Robtex

Up: 185.4.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 185.4.80.0/23
Down right: 185.4.82.0/23

IP	Type	Hostname
185.4.80.9	A+PTR	mobile.bulsat.com
185.4.80.143	PTR	mobile.bulsat.com
185.4.81.17	A	external.fsof1-1.fna.fbcdn.net
185.4.81.17	A	scontent.fsof1-1.fna.fbcdn.net
185.4.81.18	A	video.fsof1-1.fna.fbcdn.net
185.4.81.32	A	instagram.fsof1-1.fna.fbcdn.net
185.4.81.108	PTR	cache.google.com
185.4.81.108	A	r1---sn-c0an5u-nv4l.googlevideo.com
185.4.81.108	A	r1.sn-c0an5u-nv4l.googlevideo.com
185.4.81.109	PTR	cache.google.com
185.4.81.109	A	r2---sn-c0an5u-nv4l.googlevideo.com
185.4.81.110	PTR	cache.google.com
185.4.81.110	A	r3---sn-c0an5u-nv4l.googlevideo.com
185.4.81.111	PTR	cache.google.com
185.4.81.112	PTR	cache.google.com
185.4.81.112	A	r5.sn-c0an5u-nv4l.googlevideo.com
185.4.81.113	PTR	cache.google.com
185.4.81.113	A	r6.sn-c0an5u-nv4l.googlevideo.com
185.4.81.140	PTR	cache.google.com
185.4.81.140	A	r1.sn-c0an5u-nv4e.googlevideo.com
185.4.81.141	PTR	cache.google.com
185.4.81.141	A	r2.sn-c0an5u-nv4e.googlevideo.com
185.4.81.142	PTR	cache.google.com
185.4.81.142	A	r3.sn-c0an5u-nv4e.googlevideo.com
185.4.81.143	PTR	cache.google.com
185.4.81.143	A	r4.sn-c0an5u-nv4e.googlevideo.com
185.4.81.209	A	video.fsof1-2.fna.fbcdn.net
185.4.81.212	A	scontent.fsof1-2.fna.fbcdn.net
185.4.81.226	A	instagram.fsof1-2.fna.fbcdn.net
185.4.83.193	A	iptv.bulsat.com
185.4.83.199	A	ns1.iptv.bulsat.com
185.4.83.200	A	api.iptv.bulsat.com
185.4.83.201	A	edge-sf-1.iptv.bulsat.com
185.4.83.201	A	lb-m.iptv.bulsat.com
185.4.83.203	A	edge-sf-3.iptv.bulsat.com
185.4.83.208	A	edge-sf-8.iptv.bulsat.com
185.4.83.221	A	lb-sf.iptv.bulsat.com
185.4.83.231	A	weather.iptv.bulsat.com
185.4.83.250	A	edge-sf-50.iptv.bulsat.com