Robtex

Up: 169.51.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 169.51.32.0/21
Down right: 169.51.40.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
169.51.32.0	A	0.20.33a9.ip4.static.sl-reverse.com
169.51.33.0	A	0.21.33a9.ip4.static.sl-reverse.com
169.51.33.2	PTR	2.21.33a9.ip4.static.sl-reverse.com
169.51.33.8	A	daggerhashimoto.eu.nicehash.com
169.51.33.8	A	cryptonightheavy.eu.nicehash.com
169.51.33.8	A	x11.eu.nicehash.com
169.51.33.102	A+PTR	66.21.33a9.ip4.static.sl-reverse.com
169.51.33.102	A	bss-cloud-ams03-prod.eu-central.containers.mybluemix.net
169.51.33.229	A	community.cm
169.51.33.229	A	bugtler.com
169.51.33.229	A	alwaysornever.com
169.51.33.250	A+PTR	fa.21.33a9.ip4.static.sl-reverse.com
169.51.33.250	A	lacer.com
169.51.34.0	A	0.22.33a9.ip4.static.sl-reverse.com
169.51.34.66	A+PTR	42.22.33a9.ip4.static.sl-reverse.com
169.51.34.66	A	elmoqattam.com
169.51.35.84	A	webmail.rudaw.net
169.51.35.98	A+PTR	62.23.33a9.ip4.static.sl-reverse.com
169.51.35.98	A	dns08.saludcontigo.co
169.51.35.102	A+PTR	66.23.33a9.ip4.static.sl-reverse.com
169.51.35.102	A	dns11.fi2net.co
169.51.35.103	PTR	67.23.33a9.ip4.static.sl-reverse.com
169.51.35.104	PTR	68.23.33a9.ip4.static.sl-reverse.com
169.51.35.164	A+PTR	a4.23.33a9.ip4.static.sl-reverse.com
169.51.35.164	A	www.unipupil.ie
169.51.35.164	A	unipupil.it
169.51.35.228	A+PTR	e4.23.33a9.ip4.static.sl-reverse.com
169.51.35.228	A	followersplus.net
169.51.35.229	A+PTR	e5.23.33a9.ip4.static.sl-reverse.com
169.51.35.229	A	advertisingtools.org
169.51.35.230	PTR	e6.23.33a9.ip4.static.sl-reverse.com
169.51.35.231	PTR	e7.23.33a9.ip4.static.sl-reverse.com
169.51.36.0	A	0.24.33a9.ip4.static.sl-reverse.com
169.51.37.0	A+PTR	0.25.33a9.ip4.static.sl-reverse.com
169.51.38.0	A	0.26.33a9.ip4.static.sl-reverse.com
169.51.38.51	A	tmcnis.org
169.51.39.0	A	0.27.33a9.ip4.static.sl-reverse.com
169.51.39.2	PTR	2.27.33a9.ip4.static.sl-reverse.com
169.51.40.0	A	0.28.33a9.ip4.static.sl-reverse.com
169.51.41.0	A	0.29.33a9.ip4.static.sl-reverse.com
169.51.41.29	A+PTR	1d.29.33a9.ip4.static.sl-reverse.com
169.51.42.0	A+PTR	0.2a.33a9.ip4.static.sl-reverse.com
169.51.44.0	A	0.2c.33a9.ip4.static.sl-reverse.com
169.51.45.0	A	0.2d.33a9.ip4.static.sl-reverse.com
169.51.45.25	A+PTR	19.2d.33a9.ip4.static.sl-reverse.com
169.51.45.30	A+PTR	1e.2d.33a9.ip4.static.sl-reverse.com
169.51.46.0	A	0.2e.33a9.ip4.static.sl-reverse.com