Robtex

Up: 91.217.228.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 91.217.229.0/25
Down right: 91.217.229.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.217.229.10	A+PTR	ns1.cardsys.at
91.217.229.11	A+PTR	ns2.cardsys.at
91.217.229.11	A	www.cardsys.net
91.217.229.19	A	zenoss.cardsys.at
91.217.229.25	A+PTR	mx01.cardsys.at
91.217.229.26	A+PTR	mx02.cardsys.at
91.217.229.30	A	outlaw.cardsys.at
91.217.229.30	A	www.cardsys.at
91.217.229.32	PTR	secure.cardsys.net
91.217.229.32	A	secure.cardsys.at
91.217.229.36	A	mx.cardsys.net
91.217.229.39	A+PTR	ns3.cardsys.at
91.217.229.45	A	server.synergistic-networks.net
91.217.229.45	A	synergistic-networks.info
91.217.229.45	A	synet.works
91.217.229.63	PTR	www.meindm.at
91.217.229.63	A	ebelincosmetics.at
91.217.229.63	A	prinzessinsternenzauber.at
91.217.229.66	A	mx.meindm.at
91.217.229.89	A	list01.cardsys.at
91.217.229.89	A	list03.cardsys.at
91.217.229.89	A	lserv.cardsys.at
91.217.229.91	A+PTR	lserv.cardsys.at
91.217.229.92	A	lserv.cardsys.at
91.217.229.93	A	lserv.cardsys.at
91.217.229.94	A	lserv.cardsys.at
91.217.229.95	A	lserv.cardsys.at
91.217.229.96	A+PTR	cardsys.at
91.217.229.97	PTR	cardsys.at
91.217.229.98	PTR	cardsys.at
91.217.229.99	PTR	cardsys.at
91.217.229.101	PTR	f5-1.cardsys.at
91.217.229.102	PTR	f5-2.cardsys.at
91.217.229.112	PTR	cardsys.at
91.217.229.113	PTR	cardsys.at
91.217.229.114	PTR	cardsys.at
91.217.229.115	PTR	cardsys.at
91.217.229.116	PTR	cardsys.at
91.217.229.117	PTR	cardsys.at
91.217.229.118	PTR	cardsys.at
91.217.229.119	PTR	cardsys.at
91.217.229.120	PTR	cardsys.at
91.217.229.121	PTR	cardsys.at
91.217.229.122	PTR	cardsys.at
91.217.229.123	PTR	cardsys.at
91.217.229.124	PTR	cardsys.at
91.217.229.125	PTR	cardsys.at
91.217.229.126	PTR	cardsys.at
91.217.229.140	PTR	www.meindm.at
91.217.229.140	A	ebelincosmetics.at
91.217.229.140	A	prinzessinsternenzauber.at
91.217.229.150	A	www.isi-shop.com