Robtex

Up: 76.56.128.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 76.56.192.0/19
Down right: 76.56.224.0/19

IP	Type	Hostname
76.56.192.80	PTR	cm-76-56-192-80.neo.res.rr.com
76.56.225.155	PTR	cm-76-56-225-155.neo.res.rr.com
76.56.237.130	PTR	cm-76-56-237-130.neo.res.rr.com
76.56.237.192	PTR	cm-76-56-237-192.neo.res.rr.com