Robtex

Up: 87.238.112.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 87.238.120.0/22
Down right: 87.238.124.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
87.238.120.1	A	mail.fastmultimedia.de
87.238.120.3	A	fastmultimedia.de
87.238.121.1	PTR	www.fast-lta.com
87.238.121.1	PTR	www.silentcubes.com
87.238.121.1	PTR	www.fast-lta.de
87.238.124.3	PTR	server-ip-3.kundendomain.de