Robtex

Up: 52.217.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 52.217.48.0/21
Down right: 52.217.56.0/21

IP	Type	Hostname
52.217.48.43	PTR	s3-website-us-east-1.amazonaws.com
52.217.48.59	A	videoa.mp
52.217.48.75	A	learnstormbayarea.com
52.217.48.155	A	ltx71.com
52.217.48.195	A	wavenetvocalizer.com
52.217.49.19	A	ctig.com
52.217.49.35	A	dilmot.com
52.217.49.83	A	directtalk.com.br
52.217.49.139	A	vrizi.com
52.217.49.171	A	www.mobipocket.com
52.217.49.179	A	mosquared.com
52.217.49.203	A	list3r.com
52.217.49.251	A	preceptrealestate.mobi
52.217.50.19	A	sampleonly.dk
52.217.50.24	A	us-std-00001.s3.dualstack.us-east-1.amazonaws.com
52.217.50.28	PTR	s3-1-w.amazonaws.com