Robtex

Up: 212.4.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 212.4.0.0/21
Down right: 212.4.8.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.4.3.98	PTR	named.105.net
212.4.4.21	A	pulcinella.arancedisicilia.it
212.4.5.53	A+PTR	mail.text100.it
212.4.6.34	PTR	mail3.wass.it
212.4.7.33	PTR	router.interform.it
212.4.7.34	PTR	linux.interform.it
212.4.7.35	PTR	appl.interform.it
212.4.7.49	PTR	router.newlog.it
212.4.7.50	PTR	linux.newlog.it
212.4.7.59	PTR	dialup1.newlog.it
212.4.7.60	PTR	dialup2.newlog.it
212.4.7.114	PTR	sthmail01.companymail.it
212.4.7.114	A	mail.ctrlaltdel.it
212.4.7.114	A	mail2.duemaggio.it
212.4.7.115	PTR	assp.soteha.it
212.4.7.116	PTR	mx.logical.it
212.4.7.133	PTR	mail1.ctimilano.com
212.4.7.154	PTR	mail.nicox.it
212.4.8.156	A+PTR	mail.hamamatsu.it
212.4.8.178	A	mail.new-system.com
212.4.8.197	PTR	svrmail.cpmitalia.it
212.4.8.197	PTR	svrmail.interbranditalia.it
212.4.8.197	PTR	svrmail.inventacpm.it
212.4.9.202	A	risotteria.it
212.4.10.24	A	ns1.l.reti.it
212.4.10.35	A	www.abbeynational.it
212.4.10.40	PTR	mail-mobile.it
212.4.10.40	A	mail4.macquarie.it
212.4.10.40	A	smtp.himtf.com
212.4.10.41	PTR	mail-mobile.it
212.4.10.41	A	mail.hi-mtf.eu
212.4.10.135	PTR	smtp03.reti.it
212.4.10.137	A	www.esports-italy.it
212.4.10.137	A	esports-italy.it
212.4.10.143	PTR	smtp01.reti.it
212.4.10.143	A	mx.l.reti.it
212.4.10.144	PTR	smtp02.reti.it
212.4.10.144	A	mx.l.reti.it
212.4.10.144	A	maildummy.reti.it
212.4.10.145	PTR	reti.it
212.4.10.145	A	nlbsmtp.reti.it
212.4.10.160	A	portal.reti.it
212.4.10.169	A	napolinobilissima.it
212.4.10.170	A	reti.it
212.4.10.170	A	ns1.domoreti.com
212.4.12.12	A	richemont.it
212.4.12.68	PTR	www.cryptonet.it
212.4.12.69	PTR	www.cryptoware.com
212.4.13.50	PTR	www.campari.com
212.4.13.51	A	ouzo12.it
212.4.13.61	A	verruecktnachleben.de
212.4.13.61	A	verrueckt-nach-leben.de
212.4.13.66	A	terruzzieputhod.com
212.4.13.66	A	sellaemoscacommerciale.it
212.4.13.66	A	terruzziputhod.com
212.4.13.90	A	aperolspritz.com
212.4.13.164	PTR	mx1.campari.com
212.4.13.165	PTR	mx2.campari.com
212.4.14.6	A+PTR	smtp.gruppomg.com
212.4.14.7	A+PTR	smtp.gruppomg.com
212.4.14.9	A	smtp.gruppomg.com
212.4.14.9	A	mail.gruppomg.com
212.4.14.66	A+PTR	pjapps06.pjxp.com
212.4.14.71	PTR	mail.alpiuk.com
212.4.14.71	A	wmail.pjxp.com
212.4.14.72	A	imovepickandpack.com
212.4.14.73	A	imoveweb.com
212.4.14.76	A	imoveweb.com
212.4.14.145	PTR	mail.intercos.it
212.4.14.146	PTR	webmail.intercos.it
212.4.14.196	PTR	main5.milliment.net
212.4.14.196	A	international-fantasy.it
212.4.14.196	A	logicalnet.it
212.4.14.197	PTR	sthweb02.soteha.com
212.4.14.198	PTR	main6.milliment.net