Robtex

Up: 193.72.72.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 193.72.72.0/23
Down right: 193.72.74.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
193.72.72.33	PTR	mx.kaiser.ch
193.72.72.33	A	mx.gigerbyte.com
193.72.72.33	A	mx.rideequine.com
193.72.72.41	A	41-72-72-193.adsl.switzerland.net
193.72.72.65	A	mail.steiger.ch
193.72.72.155	A	mail.planta-gmbh.ch
193.72.73.55	A+PTR	55-73-72-193.static.dsl-net.ch
193.72.73.83	A	83-73-72-193.adsl.switzerland.net
193.72.73.95	A+PTR	95-73-72-193.static.dsl-net.ch
193.72.73.106	A+PTR	106-73-72-193.static.dsl-net.ch
193.72.73.115	A+PTR	115-73-72-193.static.dsl-net.ch
193.72.73.122	A+PTR	122-73-72-193.static.dsl-net.ch
193.72.73.128	A+PTR	128-73-72-193.static.dsl-net.ch
193.72.73.178	A+PTR	178-73-72-193.static.dsl-net.ch
193.72.73.241	A+PTR	241-73-72-193.static.dsl-net.ch
193.72.74.2	A	2-74-72-193.adsl.switzerland.net
193.72.74.113	A	mail1.avo56.ch
193.72.75.4	A	router.linux-guru.ch
193.72.75.95	A+PTR	95-75-72-193.static.dsl-net.ch
193.72.75.137	A+PTR	137-75-72-193.static.dsl-net.ch
193.72.75.151	A+PTR	151-75-72-193.static.dsl-net.ch
193.72.75.193	A+PTR	193-75-72-193.static.dsl-net.ch
193.72.75.210	A+PTR	210-75-72-193.static.dsl-net.ch
193.72.75.235	A+PTR	235-75-72-193.static.dsl-net.ch
193.72.75.244	A+PTR	244-75-72-193.static.dsl-net.ch