Robtex

Up: 52.75.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 52.75.128.0/18
Down right: 52.75.192.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
52.75.138.254	A	mx2.agescbergamo.it
52.75.138.254	A	mx2.emporio1914.com
52.75.138.254	A	mx2.afrorevil.it
52.75.209.147	PTR	ec2-52-75-209-147.us-west-2.compute.amazonaws.com
52.75.229.54	A+PTR	ec2-52-75-229-54.us-west-2.compute.amazonaws.com