Robtex

Up: 46.28.36.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 46.28.37.0/25
Down right: 46.28.37.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
46.28.37.11	PTR	f-gn-extra.gelsen.net
46.28.37.11	A	mfrsgw01.masterflex.de
46.28.37.21	A	mfrssm01.masterflex.de
46.28.37.22	A	aegir.core.gelsen.net
46.28.37.23	A	mobilemail.gelsen.net
46.28.37.28	A+PTR	stephano.core.gelsen.net
46.28.37.34	A+PTR	x-gn-web-1.gelsen.net
46.28.37.34	A	bielefeld-pflegeberatung.de
46.28.37.36	PTR	stephano.core.gelsen.net
46.28.37.36	A	mail.energy-engineers.de
46.28.37.36	A	en.gelsen.net
46.28.37.128	PTR	dynamic-46-28-37-128.wodan.highspeedsurfer.de
46.28.37.136	PTR	dynamic-46-28-37-136.wodan.highspeedsurfer.de
46.28.37.152	PTR	dynamic-46-28-37-152.wodan.highspeedsurfer.de
46.28.37.152	A	wolf-waltrop.de
46.28.37.152	A	europemedic.ru
46.28.37.191	PTR	dynamic-46-28-37-191.wodan.highspeedsurfer.de
46.28.37.192	PTR	dynamic-46-28-37-192.wodan.highspeedsurfer.de
46.28.37.207	PTR	dynamic-46-28-37-207.wodan.highspeedsurfer.de
46.28.37.208	PTR	dynamic-46-28-37-208.wodan.highspeedsurfer.de
46.28.37.215	PTR	dynamic-46-28-37-215.wodan.highspeedsurfer.de
46.28.37.216	PTR	dynamic-46-28-37-216.wodan.highspeedsurfer.de
46.28.37.223	PTR	dynamic-46-28-37-223.wodan.highspeedsurfer.de
46.28.37.224	PTR	dynamic-46-28-37-224.wodan.highspeedsurfer.de
46.28.37.231	PTR	dynamic-46-28-37-231.wodan.highspeedsurfer.de
46.28.37.232	PTR	dynamic-46-28-37-232.wodan.highspeedsurfer.de
46.28.37.239	PTR	dynamic-46-28-37-239.wodan.highspeedsurfer.de
46.28.37.240	PTR	dynamic-46-28-37-240.wodan.highspeedsurfer.de
46.28.37.247	PTR	dynamic-46-28-37-247.wodan.highspeedsurfer.de
46.28.37.248	PTR	dynamic-46-28-37-248.wodan.highspeedsurfer.de
46.28.37.255	PTR	dynamic-46-28-37-255.wodan.highspeedsurfer.de