Robtex

Up: 193.135.0.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 193.135.0.0/24
Down right: 193.135.1.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
193.135.0.20	PTR	mail.jungbunzlauer.ch
193.135.0.58	A+PTR	mail.basel.experta.ch
193.135.0.115	A	mail.robusta.ch
193.135.0.125	A+PTR	mailhost.linnea-worldwide.com
193.135.0.125	A	mailhost.linnea-worldwide.ch
193.135.0.125	A	mailhost.linnea-us.com
193.135.1.11	PTR	moveit-test.martiag.ch
193.135.1.11	A	moveit.martiag.ch
193.135.1.12	A	moveit.martiag.ch
193.135.1.18	A+PTR	smtp.martiag.ch
193.135.1.25	A	mail.arge-a12.ch
193.135.1.34	A	mail.aquaform.ch
193.135.1.34	A	mail.bf-treuhand.ch
193.135.1.34	A	mail.eurotrade.ch
193.135.1.37	A	webmail.hinni.ch
193.135.1.178	PTR	mail.regatron.ch
193.135.1.178	A	mail.regatron.com