Robtex

Up: 153.96.48.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 153.96.48.0/24
Down right: 153.96.49.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
153.96.48.17	PTR	vpn.ivv.fraunhofer.de
153.96.49.3	A+PTR	cnso.ivv.fraunhofer.de
153.96.49.4	A+PTR	ksmtadmz.ivv.fraunhofer.de
153.96.49.4	A	mail-gw.ivv.fraunhofer.de
153.96.49.67	PTR	edv.ivv.fraunhofer.de
153.96.49.67	A+PTR	geraete.ivv.fraunhofer.de
153.96.49.67	A+PTR	iza.ivv.fraunhofer.de
153.96.49.68	A+PTR	sogo.ivv.fraunhofer.de
153.96.49.68	A	webmail.ivv.fraunhofer.de
153.96.49.68	A	calendar.ivv.fraunhofer.de
153.96.49.71	A+PTR	sogo4.ivv.fraunhofer.de
153.96.49.71	A	rc.ivv.fraunhofer.de