Robtex

Up: 5.161.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 5.161.0.0/18
Down right: 5.161.64.0/18

IP	Type	Hostname
5.161.0.64	A+PTR	static.64.0.161.5.clients.your-server.de
5.161.0.64	A	mail.ns1.ns2.518c2506e57106779f0cf55fcfd14fb065d00efe1d5a5a2a9b2d684d.6.mjuyh.com
5.161.25.14	A	google-lc1.servegame.com
5.161.40.62	A	fcaptcha.net
5.161.42.110	PTR	server.mysterydata.com
5.161.42.135	A	hcomm93.dns-wk.info
5.161.44.72	PTR	static.72.44.161.5.clients.your-server.de
5.161.44.204	PTR	mail.clusteres.com
5.161.45.186	PTR	server.cbs-canon.com
5.161.48.57	PTR	emails035.aedigital.dev
5.161.49.106	A	farp.com.br
5.161.50.208	PTR	visioncargo.net
5.161.55.43	PTR	swipelarge.co.uk
5.161.58.247	A	www.traccar.org
5.161.58.247	A	traccar.org
5.161.67.184	PTR	hestiacpcs282.trebolhosting.com
5.161.68.70	PTR	mx.helpfulpapers.com
5.161.86.47	A	agahibaran.com
5.161.89.19	A+PTR	static.19.89.161.5.clients.your-server.de