Robtex

Up: 79.132.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 79.132.144.0/21
Down right: 79.132.152.0/21

IP	Type	Hostname
79.132.151.255	PTR	server79-132-151-255.rz-l.net
79.132.152.0	PTR	server79-132-152-0.rz-l.net
79.132.153.65	PTR	server79-132-153-65.rz-l.net
79.132.153.115	PTR	server79-132-153-115.rz-l.net
79.132.153.147	PTR	server79-132-153-147.rz-l.net
79.132.153.195	PTR	server79-132-153-195.rz-l.net
79.132.153.240	PTR	server79-132-153-240.rz-l.net
79.132.153.241	PTR	server79-132-153-241.rz-l.net
79.132.159.33	PTR	server79-132-159-33.rz-l.net
79.132.159.51	PTR	server79-132-159-51.rz-l.net
79.132.159.67	PTR	server79-132-159-67.rz-l.net
79.132.159.113	PTR	server79-132-159-113.rz-l.net
79.132.159.145	PTR	server79-132-159-145.rz-l.net