Robtex

Up: 5.197.64.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 5.197.80.0/21
Down right: 5.197.88.0/21

IP	Type	Hostname
5.197.81.65	PTR	host-5.197.81.65.katv1.net
5.197.84.144	PTR	host-5.197.84.144.katv1.net
5.197.86.113	PTR	host-5.197.86.113.katv1.net
5.197.88.18	PTR	host-5.197.88.18.katv1.net
5.197.91.240	PTR	host-5.197.91.240.katv1.net
5.197.93.3	PTR	host-5.197.93.3.katv1.net