Robtex

Up: 72.232.32.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 72.232.32.0/23
Down right: 72.232.34.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.232.32.2	PTR	2.32.232.72.static.reverse.ltdomains.com
72.232.32.2	A	thedollarrace.com
72.232.32.6	PTR	6.32.232.72.static.reverse.ltdomains.com
72.232.32.6	A	firmareg.com
72.232.32.6	A	mail.firmareg.com
72.232.32.10	PTR	10.32.232.72.static.reverse.ltdomains.com
72.232.32.15	A	15.32.232.72.static.reverse.ltdomains.com
72.232.32.16	A	16.32.232.72.static.reverse.ltdomains.com
72.232.32.29	A	29.32.232.72.static.reverse.ltdomains.com
72.232.32.34	PTR	h3.plesklogin.net
72.232.32.34	A	distinct.hu
72.232.32.39	A	39.32.232.72.static.reverse.ltdomains.com
72.232.32.40	A	40.32.232.72.static.reverse.ltdomains.com
72.232.32.46	PTR	n-th.com
72.232.32.46	A	absolutistcorp.com
72.232.32.50	A	amerimorefinancial.com
72.232.32.50	A	lt.lhphost2.com
72.232.32.50	A	teamchl.com
72.232.32.66	PTR	ns1.fullservices.com.ar
72.232.32.70	A	70.32.232.72.static.reverse.ltdomains.com
72.232.32.72	A	72.32.232.72.static.reverse.ltdomains.com
72.232.32.101	A	101.32.232.72.static.reverse.ltdomains.com
72.232.32.111	A	111.32.232.72.static.reverse.ltdomains.com
72.232.32.115	A	115.32.232.72.static.reverse.ltdomains.com
72.232.32.130	PTR	server.domainandspace.net
72.232.32.144	A	144.32.232.72.static.reverse.ltdomains.com
72.232.32.145	A	145.32.232.72.static.reverse.ltdomains.com
72.232.32.156	PTR	ns2.ddf.com.br
72.232.32.157	PTR	ssh.ddf.com.br
72.232.32.165	A	165.32.232.72.static.reverse.ltdomains.com
72.232.32.169	A	169.32.232.72.static.reverse.ltdomains.com
72.232.32.172	A	172.32.232.72.static.reverse.ltdomains.com
72.232.32.184	A	184.32.232.72.static.reverse.ltdomains.com
72.232.32.190	PTR	mx.tegnher.com
72.232.32.191	A	191.32.232.72.static.reverse.ltdomains.com
72.232.32.198	A	198.32.232.72.static.reverse.ltdomains.com
72.232.32.203	A	203.32.232.72.static.reverse.ltdomains.com
72.232.32.204	A	204.32.232.72.static.reverse.ltdomains.com
72.232.32.205	PTR	205.32.232.72.static.reverse.ltdomains.com
72.232.32.218	PTR	ns0.netsphare.com
72.232.32.236	PTR	ns2.swanseahost.co.uk
72.232.32.244	PTR	citywidehost.com
72.232.32.246	PTR	citywidehost.com
72.232.33.10	PTR	linksviewer.com
72.232.33.20	A	mail.zekdesign.com
72.232.33.35	PTR	ns1.vservidor.com
72.232.33.44	PTR	ns1.robhunter.net
72.232.33.58	PTR	server1.just-host.com
72.232.33.59	PTR	server1.just-host.com
72.232.33.60	PTR	server1.just-host.com
72.232.33.61	PTR	server1.just-host.com
72.232.33.62	PTR	server1.just-host.com
72.232.33.65	A	65.33.232.72.static.reverse.ltdomains.com
72.232.33.71	A+PTR	71.33.232.72.static.reverse.ltdomains.com
72.232.33.77	A+PTR	77.33.232.72.static.reverse.ltdomains.com
72.232.33.122	A	sprygaming.com
72.232.33.155	PTR	155.33.232.72.reverse.he.com.br
72.232.33.156	PTR	156.33.232.72.reverse.he.com.br
72.232.33.166	PTR	166.33.232.72.static.reverse.ltdomains.com
72.232.33.170	A	170.33.232.72.static.reverse.ltdomains.com
72.232.33.183	A	183.33.232.72.static.reverse.ltdomains.com
72.232.33.186	PTR	srv01.dwsflorida.net
72.232.33.202	A	mail.imtheir.com
72.232.33.211	A	211.33.232.72.static.reverse.ltdomains.com
72.232.33.213	A	213.33.232.72.static.reverse.ltdomains.com
72.232.33.226	A	srv77a.labina.net
72.232.33.227	A	srv77b.labina.net
72.232.33.251	A	ns1.asushosting.com
72.232.34.19	A	19.34.232.72.static.reverse.ltdomains.com
72.232.34.42	A+PTR	42.34.232.72.static.reverse.ltdomains.com
72.232.34.53	PTR	ns10.o2n.com.br
72.232.34.54	PTR	ns20.o2n.com.br
72.232.34.98	PTR	98.1.232.72.static.reverse.ltdomains.com
72.232.34.100	A	100.34.232.72.static.reverse.ltdomains.com
72.232.34.116	A	116.34.232.72.static.reverse.ltdomains.com
72.232.34.176	A	176.34.232.72.static.reverse.ltdomains.com
72.232.34.188	A	188.34.232.72.static.reverse.ltdomains.com
72.232.34.192	A	192.34.232.72.static.reverse.ltdomains.com
72.232.34.195	A	195.34.232.72.static.reverse.ltdomains.com
72.232.34.198	A	198.34.232.72.static.reverse.ltdomains.com
72.232.34.207	PTR	207.34.232.72.static.reverse.ltdomains.com
72.232.34.210	PTR	ocean.xtardns.com
72.232.34.211	A	211.34.232.72.static.reverse.ltdomains.com
72.232.34.223	PTR	horus.thegated.com
72.232.34.233	A+PTR	233.34.232.72.static.reverse.ltdomains.com
72.232.34.234	PTR	ambrosia.lt
72.232.34.250	A+PTR	krust.ratm.net
72.232.34.250	A	lbox.ratm.net
72.232.34.251	PTR	ratm.net
72.232.35.19	PTR	ns1.pcsei.com
72.232.35.20	PTR	ns2.pcsei.com
72.232.35.25	A+PTR	25.35.232.72.static.reverse.ltdomains.com
72.232.35.26	A	jdaviddean.com
72.232.35.32	A+PTR	32.35.232.72.static.reverse.ltdomains.com
72.232.35.46	A+PTR	46.35.232.72.static.reverse.ltdomains.com
72.232.35.47	A+PTR	47.35.232.72.static.reverse.ltdomains.com
72.232.35.50	PTR	condosite.com.br
72.232.35.62	A+PTR	62.35.232.72.static.reverse.ltdomains.com
72.232.35.108	A+PTR	108.35.232.72.static.reverse.ltdomains.com
72.232.35.130	PTR	my.personalmedicine.org
72.232.35.137	PTR	137.35.232.72.static.reverse.ltdomains.com
72.232.35.138	PTR	cp1.servergroup2.com
72.232.35.138	A	xn--rsss74b.com
72.232.35.138	A	ns2.tempatnonton.com
72.232.35.193	A+PTR	193.35.232.72.static.reverse.ltdomains.com
72.232.35.220	PTR	72.232.35.220.svservers.com
72.232.35.245	A	245.35.232.72.static.reverse.ltdomains.com
72.232.35.253	A	altalive.net