Robtex

Up: 178.23.80.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 178.23.80.0/22
Down right: 178.23.84.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
178.23.81.4	A	ns2.xortex.at
178.23.81.31	A+PTR	server75.xortex.net
178.23.81.31	A	michaelbrandtner.com
178.23.81.32	A	waldfest-niederwaldkirchen.at
178.23.81.32	A	server1.telnet.at
178.23.81.32	A	haslach-aktiv.at
178.23.81.33	PTR	backup76.xortex.net
178.23.81.40	A	linzmarathon.at
178.23.81.40	A	linzmarathon.com
178.23.81.40	A	server39.xortex.net
178.23.81.43	PTR	server42.xortex.at
178.23.81.52	A+PTR	server63.xortex.net
178.23.81.52	A	produktionsschule-gmunden.at
178.23.81.52	A	codersbay.at
178.23.81.53	A	felbermayr.eu
178.23.84.18	A	cms2test.world4you.com
178.23.85.195	A	sites02.w4ysites.com
178.23.85.199	A	widget-w4ysites-uh.com
178.23.85.200	A	widget-w4ysites-uc.com
178.23.85.203	A	w4ysitesdev.com
178.23.85.203	A	w4ysitesdev-widgets-hosting.com
178.23.85.203	A	w4ysitesdev-widgets-app.com
178.23.85.204	A	w4ysitesdev-widgets-hosting.com
178.23.85.210	A+PTR	w4ylive-node01.world4you.com
178.23.85.210	A	world4you.ch
178.23.85.210	A	world4you.mx
178.23.86.1	PTR	corerou03.world4you.com
178.23.86.35	A+PTR	ns2b.world4you.at