Robtex

Up: 185.67.36.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 185.67.36.0/24
Down right: 185.67.37.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
185.67.36.40	A+PTR	ns01.posteo-dns.de
185.67.36.40	A	ns01.posteo.de
185.67.36.61	A+PTR	mailin01.posteo.de
185.67.36.61	A	mx01.posteo.de
185.67.36.62	A	mx01.posteo.de
185.67.36.63	A+PTR	mx03.posteo.de
185.67.36.64	A+PTR	mx04.posteo.de
185.67.36.65	A+PTR	mout01.posteo.de
185.67.36.66	A+PTR	mout02.posteo.de
185.67.36.70	A+PTR	mx03.posteo.de
185.67.36.71	A	mx04.posteo.de
185.67.36.89	PTR	posteo.de
185.67.36.131	PTR	mx01.posteo.de
185.67.36.141	A+PTR	mout01.posteo.de
185.67.36.142	A+PTR	mout02.posteo.de
185.67.36.145	A	posteo.at
185.67.36.145	A	posteo.eu
185.67.36.145	A	posteo.dk
185.67.36.147	A	api.posteo.de
185.67.36.169	A	posteo.net
185.67.36.169	A	posteo.biz
185.67.36.169	A	posteo.de