Robtex

Up: 212.117.192.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 212.117.192.0/25
Down right: 212.117.192.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.117.192.66	A+PTR	spamshield1.backbone.ch
212.117.192.67	A+PTR	spamshield2.backbone.ch
212.117.192.128	A+PTR	ns1.backbone.ch
212.117.192.129	A	mail2.backbone.ch
212.117.192.130	A	mail1.backbone.ch
212.117.192.132	A+PTR	mail2.backbone.ch
212.117.192.133	A	dateien.ch
212.117.192.133	A	kmuserver.ch
212.117.192.135	A+PTR	web1.backbone.ch
212.117.192.135	A	www.phonestar.ch
212.117.192.135	A	www.backbone.ch
212.117.192.136	A	*.speed-test.ch