Robtex

Up: 192.3.18.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 192.3.18.0/25
Down right: 192.3.18.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.3.18.5	PTR	host.colocrossing.com
192.3.18.5	A	garymeyerphotography.com
192.3.18.7	PTR	host.colocrossing.com
192.3.18.7	A	stepanenko.no
192.3.18.10	PTR	host.colocrossing.com
192.3.18.12	PTR	host.colocrossing.com
192.3.18.12	A	henhenlu.tk
192.3.18.12	A	team-hydra.org
192.3.18.17	PTR	host.colocrossing.com
192.3.18.17	A	mail.casinocoupon.info
192.3.18.17	A	www.casinocoupon.info
192.3.18.18	PTR	host.colocrossing.com
192.3.18.23	PTR	host.colocrossing.com
192.3.18.25	PTR	host.colocrossing.com
192.3.18.25	A	spbdesigns.biz
192.3.18.25	A	spbdesigns.com
192.3.18.28	PTR	host.colocrossing.com
192.3.18.30	A	long-porn-videos.org
192.3.18.30	A	long-porn-videos.net
192.3.18.30	A	long-porn-videos.info
192.3.18.32	A	biocarshare.org
192.3.18.32	A	ns1.biocarshare.org
192.3.18.32	A	ns2.biocarshare.org
192.3.18.36	A	yudhismov.com
192.3.18.39	A	ns7.ternakteri.club
192.3.18.40	A+PTR	maverick.jjcsolution.com
192.3.18.40	A	jjcsolution.com
192.3.18.40	A	ns2.maverick.jjcsolution.com
192.3.18.43	PTR	host.colocrossing.com
192.3.18.46	PTR	host.colocrossing.com
192.3.18.46	A	cuoretriveneto.it
192.3.18.46	A	tangballdd6.com
192.3.18.48	PTR	host.colocrossing.com
192.3.18.48	A	w--w.net
192.3.18.48	A	www.w--w.net
192.3.18.51	PTR	host.colocrossing.com
192.3.18.51	A	fieldofgracebc.com
192.3.18.51	A	jerryandbetty.org
192.3.18.52	PTR	host.colocrossing.com
192.3.18.52	A	hivedj.com
192.3.18.52	A	mail.thesquid.net
192.3.18.53	PTR	host.colocrossing.com
192.3.18.57	PTR	server1.remotefix.info
192.3.18.58	PTR	host.colocrossing.com
192.3.18.59	A	ns8.ternakteri.club
192.3.18.60	PTR	host.colocrossing.com
192.3.18.61	PTR	host.colocrossing.com
192.3.18.62	PTR	host.colocrossing.com
192.3.18.63	PTR	host.colocrossing.com
192.3.18.65	PTR	host.colocrossing.com
192.3.18.66	PTR	host.colocrossing.com
192.3.18.68	PTR	host.colocrossing.com
192.3.18.68	A	ibestshoe.com
192.3.18.68	A	ushoebeautiful.com
192.3.18.69	PTR	host.colocrossing.com
192.3.18.69	A	foude.tk
192.3.18.70	A	cityviewtennis.ca
192.3.18.71	PTR	host.colocrossing.com
192.3.18.71	A	notcomplicated.ca
192.3.18.71	A	ssh-excho.tk
192.3.18.72	PTR	host.colocrossing.com
192.3.18.72	A	m1589.com
192.3.18.73	PTR	host.colocrossing.com
192.3.18.74	PTR	host.colocrossing.com
192.3.18.74	A	ntnt.info
192.3.18.75	PTR	host.colocrossing.com
192.3.18.77	A	afardana.com
192.3.18.78	PTR	host.colocrossing.com
192.3.18.90	A	donglongshoes.com
192.3.18.90	A	kangzhiyuan120.com
192.3.18.93	PTR	serv1.marketinghealth.biz
192.3.18.93	A	scs-college.com
192.3.18.102	PTR	host.colocrossing.com
192.3.18.102	A	lunlidianying.cn
192.3.18.102	A	nvh.cc
192.3.18.104	A	lejuin.net
192.3.18.107	A+PTR	box.acqumulus.com
192.3.18.112	PTR	host.colocrossing.com
192.3.18.115	PTR	host.colocrossing.com
192.3.18.117	PTR	host.colocrossing.com
192.3.18.117	A	7889.info
192.3.18.118	PTR	host.colocrossing.com
192.3.18.118	A	jianpu.8399.org
192.3.18.119	A	p77.org
192.3.18.119	A	www.p77.org
192.3.18.122	A	dczp.net
192.3.18.122	A	zuowen3.info
192.3.18.123	PTR	host.colocrossing.com
192.3.18.123	A	ns6.r.cx
192.3.18.140	PTR	192-3-18-140-host.colocrossing.com
192.3.18.162	PTR	192-3-18-162-host.colocrossing.com
192.3.18.162	A	radio-astronomy.com
192.3.18.178	PTR	host.hostinglabs.pe
192.3.18.179	PTR	192-3-18-179-host.colocrossing.com
192.3.18.179	A	ns1-r2.obilabs.com
192.3.18.179	A	ns2-bender.obilabs.com
192.3.18.182	PTR	192-3-18-182-host.colocrossing.com
192.3.18.221	A	fitflop-sg.net