Robtex

Up: 185.3.40.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 185.3.40.0/23
Down right: 185.3.42.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
185.3.40.0	PTR	185-3-40-0-static.kasserver.com
185.3.40.3	PTR	185-3-40-3-static.kasserver.com
185.3.40.26	PTR	dd37600.kasserver.com
185.3.40.26	A	enportal.be
185.3.40.26	A	*.enportal.net
185.3.40.34	PTR	185-3-40-34-static.kasserver.com
185.3.40.34	A	meine-smartphone-auswahl.com
185.3.40.34	A	lebkuchen-gewinnen.com
185.3.40.79	PTR	185-3-40-79-static.kasserver.com
185.3.40.80	PTR	185-3-40-80-static.kasserver.com
185.3.40.82	PTR	bluraylb.kasserver.com
185.3.40.82	A	fiww.bluray-disc.de
185.3.40.82	A	clients1.bluray-disc.de
185.3.40.83	PTR	bluraymail.kasserver.com
185.3.40.84	PTR	185-3-40-84-static.kasserver.com
185.3.40.84	A	yoomox.de
185.3.40.84	A	mail.yoomox.de
185.3.40.85	A	dd22028.kasserver.com
185.3.40.85	A	v405796.kasserver.com
185.3.40.87	PTR	185-3-40-87-static.kasserver.com
185.3.40.88	PTR	185-3-40-88-static.kasserver.com
185.3.40.90	A+PTR	c201lb.kasserver.com
185.3.40.100	A	letspoollb.kasserver.com
185.3.40.100	A	mail.watchsea24.de
185.3.40.100	A	*.goldpool24.com
185.3.40.101	PTR	185-3-40-101-static.kasserver.com
185.3.40.105	A	mail.watchpool24.com
185.3.40.106	A	letspool24-technik.de
185.3.40.106	A	mail.letspool24-technik.de
185.3.40.114	PTR	c206lb.kasserver.com
185.3.40.114	A	*.cinemagnum.net
185.3.40.114	A	fantasiafilm.info
185.3.40.130	PTR	c207lb.kasserver.com
185.3.40.130	A	teilering.at
185.3.40.130	A	www.scooter-craft.de
185.3.40.132	A+PTR	c207lb-2.kasserver.com
185.3.40.133	PTR	185-3-40-133-static.kasserver.com
185.3.40.133	A	sports3.blog.webutation.net
185.3.40.133	A	*.blog.webutation.net
185.3.40.134	PTR	185-3-40-134-static.kasserver.com
185.3.40.149	PTR	185-3-40-149-static.kasserver.com
185.3.40.149	A	www.easyautosale.com
185.3.40.149	A	easyautosale.com
185.3.40.178	A	c210lb.kasserver.com
185.3.40.182	PTR	185-3-40-182-static.kasserver.com
185.3.40.186	PTR	c211lb.kasserver.com
185.3.40.186	A	meet-greet.de
185.3.40.186	A	w0137681.kasserver.com
185.3.40.190	PTR	185-3-40-190-static.kasserver.com
185.3.40.190	A	lokalo24.de
185.3.40.210	PTR	c212lb.kasserver.com
185.3.40.210	A	www.aohostels.com
185.3.40.210	A	sporthotel-berlin.de
185.3.40.211	PTR	c212web.kasserver.com
185.3.40.212	PTR	185-3-40-212-static.kasserver.com
185.3.40.212	A	*.ewida.info
185.3.40.212	A	aaron-holding.at
185.3.40.214	PTR	185-3-40-214-static.kasserver.com
185.3.40.214	A	aohostels.com
185.3.40.226	PTR	c216lb.kasserver.com
185.3.40.226	A	dc-70319251-mail.cubecard7.com
185.3.40.226	A	pamfax.gr
185.3.40.242	PTR	c217.kasserver.com
185.3.40.242	A	*.infoc7.com
185.3.40.242	A	chance.compoints.de
185.3.40.250	PTR	c218lb.kasserver.com
185.3.40.250	A	www.apiomat.org
185.3.40.250	A	apiomat.de
185.3.41.0	PTR	185-3-41-0-static.kasserver.com
185.3.41.2	PTR	c219lb.kasserver.com
185.3.41.2	A	quick-schuh-dormagen.de
185.3.41.2	A	quick-schuh-burghausen.de
185.3.41.5	PTR	185-3-41-5-static.kasserver.com
185.3.41.5	A	schuh.de
185.3.41.5	A	gogondo.com
185.3.41.8	A	st2.schuhe.de
185.3.41.9	A	mail.entwicklung-schuhe.de
185.3.41.14	PTR	185-3-41-14-static.kasserver.com
185.3.41.22	PTR	185-3-41-22-static.kasserver.com
185.3.41.65	PTR	185-3-41-65-static.kasserver.com
185.3.41.66	PTR	c215lb.kasserver.com
185.3.41.66	A	gartenwerkzeug-gewinnen.com
185.3.41.66	A	auto-oder-geld.de
185.3.41.67	PTR	185-3-41-67-static.kasserver.com
185.3.41.69	PTR	185-3-41-69-static.kasserver.com
185.3.41.69	A	www.pldev.de
185.3.41.69	A	pldev.de
185.3.41.72	PTR	185-3-41-72-static.kasserver.com
185.3.41.72	A	plbackend.de
185.3.41.72	A	mail.plbackend.de
185.3.41.75	A	laboite500.fr
185.3.41.75	A	mail.laboite500.fr
185.3.41.76	PTR	185-3-41-76-static.kasserver.com
185.3.41.76	A	mail.bien-choisir-sa-bm.fr
185.3.41.76	A	bien-choisir-sa-bm.fr
185.3.41.88	PTR	185-3-41-88-static.kasserver.com
185.3.41.97	PTR	185-3-41-97-static.kasserver.com
185.3.41.98	PTR	185-3-41-98-static.kasserver.com
185.3.41.98	A	neues-iphone-gewinnen.com
185.3.41.98	A	auto-auswahl.com
185.3.41.99	PTR	c209lb-1.kasserver.com
185.3.41.102	PTR	185-3-41-102-static.kasserver.com
185.3.41.170	PTR	185-3-41-170-static.kasserver.com
185.3.41.172	PTR	185-3-41-172-static.kasserver.com
185.3.41.182	PTR	185-3-41-182-static.kasserver.com
185.3.41.226	PTR	185-3-41-226-static.kasserver.com
185.3.42.218	PTR	185-3-42-218-static.kasserver.com
185.3.43.254	PTR	nmm-dd1.kasserver.com
185.3.43.255	PTR	185-3-43-255-static.kasserver.com