Robtex

Up: 194.33.190.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 194.33.190.0/25
Down right: 194.33.190.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
194.33.190.4	A+PTR	pop.optinet.se
194.33.190.4	A+PTR	postman.optinet.se
194.33.190.4	A+PTR	smtp.optinet.se
194.33.190.6	A+PTR	ns1.optinet.se
194.33.190.7	A+PTR	ns1.optinet.se
194.33.190.7	A	ns3.optinet.se
194.33.190.7	A	nameman.optinet.se
194.33.190.15	A+PTR	mail2.optinet.se
194.33.190.15	A	virusman.optinet.se
194.33.190.18	PTR	direktpension.nu
194.33.190.18	A+PTR	www1.optinet.se
194.33.190.18	A	wap.optinet.se