Robtex

Up: 80.87.160.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 80.87.161.0/25
Down right: 80.87.161.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.87.161.35	PTR	35.161.rev.synaix.de
80.87.161.84	PTR	commonstore.test.synaix.de
80.87.161.133	A+PTR	server004.server.datacenter-euregio.de
80.87.161.143	A	mail.rheinland-versicherung.de
80.87.161.145	A	server012.server.datacenter-euregio.de
80.87.161.148	A	xn--nesselergrnzigplan-v6b.de
80.87.161.148	A	xn--nesselergrnzig-psb.de
80.87.161.148	A	xn--nesseler-grnzig-gruppe-2lc.de