Robtex

Up: 81.201.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 81.201.0.0/21
Down right: 81.201.8.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.201.0.2	A+PTR	dns.albedo.it
81.201.0.2	A	dns.alma.it
81.201.0.3	A+PTR	dns2.albedo.it
81.201.0.3	A	dns2.alma.it
81.201.0.16	PTR	sip-ext.albedo.it
81.201.0.19	PTR	host019-pool081201000.albedo.it
81.201.0.19	A	www.comsistel.com
81.201.0.21	A	smtpin01.albedo.it
81.201.0.22	A	relay1.albedo.it
81.201.0.24	A	smtpstd01.albedo.it
81.201.0.81	PTR	host081-pool081201000.albedo.it
81.201.0.130	A+PTR	sql.albedo.it
81.201.0.130	A	www.albedo.it
81.201.0.131	PTR	host131-pool081201000.albedo.it
81.201.0.131	A	mail.mapisan.com
81.201.0.133	A	mail.mac-euro.com
81.201.0.145	PTR	weblinux.albedo.it
81.201.0.145	A	www.albedo.it
81.201.0.145	A	lagolosapiu.it
81.201.0.147	PTR	weblinux.doppiozero.to
81.201.0.161	A	www.alma.it
81.201.0.162	PTR	custwebserver.alma.it
81.201.0.162	A	www.nebiolo.net
81.201.0.162	A	www.temaconfezioni.com
81.201.0.163	PTR	host163-pool081201000.albedo.it
81.201.4.65	A+PTR	r-clv-mondco.albedo.it
81.201.4.66	A+PTR	r-alb-mondco.albedo.it
81.201.4.69	A	r-clv-mondrb.albedo.it
81.201.4.70	A	r-alb-mondrb.albedo.it
81.201.5.0	A+PTR	host000-net081201005.albedo.it
81.201.5.2	PTR	host002-net081201005.albedo.it
81.201.5.2	A	centridiurnipiemonte.it
81.201.5.2	A	nordovest.org
81.201.5.33	PTR	host033-pool081201005.albedo.it
81.201.5.33	A	mail.galup.it
81.201.5.33	A	mail.ism-to.it
81.201.5.131	A+PTR	dns.esacod.it
81.201.5.132	A	lorien.fmal.com
81.201.5.134	A	mail.filtra.it
81.201.5.134	A	zmail.esacod.it
81.201.5.164	A	heal-fit.com
81.201.5.180	A	ferragu.eu
81.201.5.180	A	alettasrl.it
81.201.5.180	A	www.centrovinipassiti.com
81.201.6.2	PTR	host002-pool081201006.albedo.it
81.201.6.2	A	www.milleunacoccola.it
81.201.6.2	A	www.cmmc.it
81.201.6.30	A	dns.lavaldocco.it
81.201.6.32	PTR	host032-pool081201006.albedo.it
81.201.6.35	PTR	host035-pool081201006.albedo.it
81.201.8.134	A	pop.oogheelkundezonnestraal.com
81.201.8.134	A	pop.oogheelkundezonnestraal.biz
81.201.10.249	PTR	host249-pool081201010.albedo.it