Robtex

Up: 193.17.224.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 193.17.232.0/22
Down right: 193.17.236.0/22

IP	Type	Hostname
193.17.232.1	A+PTR	c1.dbtg.de
193.17.232.1	A	mail2.bundestag.de
193.17.232.1	A	mail2.dbtg.de
193.17.232.2	PTR	c2.dbtg.de
193.17.232.2	A	mail4.dbtg.de
193.17.232.3	PTR	c3.dbtg.de
193.17.232.22	A	mail4.bundestag.de
193.17.232.101	A	mail2.dbtg.de
193.17.232.102	A	mail4.dbtg.de