Robtex

Up: 80.23.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 80.23.32.0/20
Down right: 80.23.48.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.23.32.1	A+PTR	host1-32-static.23-80-b.business.telecomitalia.it
80.23.32.2	A	host2-32-static.23-80-b.business.telecomitalia.it
80.23.32.7	A	host7-32-static.23-80-b.business.telecomitalia.it
80.23.32.32	PTR	host32-32-static.23-80-b.business.telecomitalia.it
80.23.32.58	A	host58-32-static.23-80-b.business.telecomitalia.it
80.23.32.200	A	host200-32-static.23-80-b.business.telecomitalia.it
80.23.32.220	A	mail2.gruppoinit.it
80.23.32.220	A	mail.gruppoinit.it
80.23.32.220	A	host220-32-static.23-80-b.business.telecomitalia.it
80.23.32.230	A	mx1.bambamitalia.it
80.23.32.240	A	host240-32-static.23-80-b.business.telecomitalia.it
80.23.33.146	A	mail.inpiubroker.it
80.23.33.208	A	host208-33-static.23-80-b.business.telecomitalia.it
80.23.33.224	PTR	host224-33-static.23-80-b.business.telecomitalia.it
80.23.35.38	A	smtp.carotenutolex.com
80.23.35.130	A	ponsele.it
80.23.35.130	A	mail.ponsele.it
80.23.37.2	PTR	host2-37-static.23-80-b.business.telecomitalia.it
80.23.37.228	A	labs.iside4sec.net
80.23.37.228	A	host228-37-static.23-80-b.business.telecomitalia.it
80.23.38.27	A	host27-38-static.23-80-b.business.telecomitalia.it
80.23.39.42	A	host42-39-static.23-80-b.business.telecomitalia.it
80.23.39.51	A	mail.6nazioni.it
80.23.39.51	A	mail.condominioportanapoli.it
80.23.39.51	A	6nazioni.it
80.23.39.74	A	formoda.it
80.23.39.176	A	host176-39-static.23-80-b.business.telecomitalia.it
80.23.39.210	A	mail.wifiradiolabs.com
80.23.39.226	PTR	host226-39-static.23-80-b.business.telecomitalia.it
80.23.41.188	A	host188-41-static.23-80-b.business.telecomitalia.it
80.23.45.35	PTR	host35-45-static.23-80-b.business.telecomitalia.it
80.23.45.35	A	mail2.sardegnaricerche.it
80.23.46.35	A	pop.superconti.it
80.23.46.36	A	mail.superconti.it
80.23.46.36	A	smtp.superconti.it
80.23.47.63	A	host63-47-static.23-80-b.business.telecomitalia.it
80.23.47.76	A	antispam.fbm.it
80.23.48.198	A	host198-48-static.23-80-b.business.telecomitalia.it
80.23.48.198	A	mailelite.it
80.23.49.4	A+PTR	host4-49-static.23-80-b.business.telecomitalia.it
80.23.49.18	A	host18-49-static.23-80-b.business.telecomitalia.it
80.23.49.23	A	host23-49-static.23-80-b.business.telecomitalia.it
80.23.49.109	A	host109-49-static.23-80-b.business.telecomitalia.it
80.23.49.126	A	host126-49-static.23-80-b.business.telecomitalia.it
80.23.49.139	A	host139-49-static.23-80-b.business.telecomitalia.it
80.23.49.145	A	host145-49-static.23-80-b.business.telecomitalia.it
80.23.49.149	A	host149-49-static.23-80-b.business.telecomitalia.it
80.23.49.151	A	host151-49-static.23-80-b.business.telecomitalia.it
80.23.49.167	A	host167-49-static.23-80-b.business.telecomitalia.it
80.23.49.175	A	host175-49-static.23-80-b.business.telecomitalia.it
80.23.49.187	A	host187-49-static.23-80-b.business.telecomitalia.it
80.23.49.192	A+PTR	host192-49-static.23-80-b.business.telecomitalia.it
80.23.49.196	A	host196-49-static.23-80-b.business.telecomitalia.it
80.23.49.218	A	host218-49-static.23-80-b.business.telecomitalia.it
80.23.49.226	PTR	mail.valagro.com
80.23.49.227	A+PTR	host227-49-static.23-80-b.business.telecomitalia.it
80.23.49.227	A	dns2.valagro.com
80.23.50.2	PTR	host2-50-static.23-80-b.business.telecomitalia.it
80.23.50.2	A	mail.perticone.com
80.23.50.2	A	mail.perticone.it
80.23.50.94	A	host94-50-static.23-80-b.business.telecomitalia.it
80.23.50.166	A	host166-50-static.23-80-b.business.telecomitalia.it
80.23.51.193	A+PTR	host193-51-static.23-80-b.business.telecomitalia.it
80.23.51.193	A	www.comune.cagliari.it
80.23.51.194	PTR	mail1.comune.cagliari.it
80.23.51.194	A	host194-51-static.23-80-b.business.telecomitalia.it
80.23.51.207	A	antispam.comune.cagliari.it
80.23.53.2	A+PTR	host2-53-static.23-80-b.business.telecomitalia.it
80.23.53.16	A	host16-53-static.23-80-b.business.telecomitalia.it
80.23.53.22	A	host22-53-static.23-80-b.business.telecomitalia.it
80.23.53.55	A	host55-53-static.23-80-b.business.telecomitalia.it
80.23.53.114	A	sedeac.com
80.23.53.170	A	mp-group.it
80.23.54.2	PTR	host2-54-static.23-80-b.business.telecomitalia.it
80.23.54.2	A	wan1.pessione.com
80.23.54.64	PTR	host64-54-static.23-80-b.business.telecomitalia.it
80.23.54.163	A+PTR	host163-54-static.23-80-b.business.telecomitalia.it
80.23.54.163	A	ns3.dominiodioccasione.org
80.23.55.3	PTR	host3-55-static.23-80-b.business.telecomitalia.it
80.23.55.3	A	dns-arta.mercurioservice.it
80.23.55.4	PTR	host4-55-static.23-80-b.business.telecomitalia.it
80.23.55.4	A	dns2-arta.mercurioservice.it
80.23.55.5	A	artaabruzzo.it
80.23.55.6	A	arta-zcs.artaabruzzo.it
80.23.55.147	A	ihsiroma.org
80.23.55.154	A	rextart.com
80.23.55.154	A	mail.rextart.com
80.23.55.154	A	mx1.rextart.com
80.23.57.83	A	host83-57-static.23-80-b.business.telecomitalia.it
80.23.57.122	A	mail.carlobressan.it
80.23.57.122	A	mailtemp.naxostec.it
80.23.57.122	A	dns.naxostec.it
80.23.57.226	A	mail.elleci.ru
80.23.58.115	A	www.liceomichelangelo.it
80.23.58.115	A	ns.liceomichelangelo.it
80.23.58.115	A	liceomichelangelo.it
80.23.59.31	A	host31-59-static.23-80-b.business.telecomitalia.it
80.23.59.53	A	www.nicolazuddas.it
80.23.59.71	A	host71-59-static.23-80-b.business.telecomitalia.it
80.23.59.79	A	host79-59-static.23-80-b.business.telecomitalia.it
80.23.59.111	A	host111-59-static.23-80-b.business.telecomitalia.it
80.23.59.176	A	host176-59-static.23-80-b.business.telecomitalia.it
80.23.60.80	A	host80-60-static.23-80-b.business.telecomitalia.it
80.23.60.136	A	host136-60-static.23-80-b.business.telecomitalia.it
80.23.60.152	A	host152-60-static.23-80-b.business.telecomitalia.it
80.23.60.200	A	host200-60-static.23-80-b.business.telecomitalia.it
80.23.61.30	A	host30-61-static.23-80-b.business.telecomitalia.it
80.23.61.33	PTR	host33-61-static.23-80-b.business.telecomitalia.it
80.23.61.55	A	host55-61-static.23-80-b.business.telecomitalia.it
80.23.61.64	A	host64-61-static.23-80-b.business.telecomitalia.it
80.23.61.71	A	host71-61-static.23-80-b.business.telecomitalia.it
80.23.61.75	A	host75-61-static.23-80-b.business.telecomitalia.it
80.23.61.80	A	host80-61-static.23-80-b.business.telecomitalia.it
80.23.61.129	PTR	host129-61-static.23-80-b.business.telecomitalia.it
80.23.61.199	A	host199-61-static.23-80-b.business.telecomitalia.it
80.23.61.220	A	host220-61-static.23-80-b.business.telecomitalia.it
80.23.62.37	A	host37-62-static.23-80-b.business.telecomitalia.it
80.23.62.180	A	mail.federcalciosrl.it
80.23.62.195	PTR	host195-62-static.23-80-b.business.telecomitalia.it
80.23.62.195	A	sarais.it
80.23.62.195	A	postapubblicitaria.it
80.23.62.219	A	host219-62-static.23-80-b.business.telecomitalia.it
80.23.63.2	A+PTR	host2-63-static.23-80-b.business.telecomitalia.it
80.23.63.4	A+PTR	host4-63-static.23-80-b.business.telecomitalia.it
80.23.63.24	A	host24-63-static.23-80-b.business.telecomitalia.it
80.23.63.28	A	host28-63-static.23-80-b.business.telecomitalia.it
80.23.63.33	A+PTR	host33-63-static.23-80-b.business.telecomitalia.it
80.23.63.36	A	host36-63-static.23-80-b.business.telecomitalia.it
80.23.63.40	A	host40-63-static.23-80-b.business.telecomitalia.it
80.23.63.45	A	host45-63-static.23-80-b.business.telecomitalia.it
80.23.63.64	A+PTR	host64-63-static.23-80-b.business.telecomitalia.it
80.23.63.70	A	host70-63-static.23-80-b.business.telecomitalia.it
80.23.63.72	A	host72-63-static.23-80-b.business.telecomitalia.it
80.23.63.74	A	host74-63-static.23-80-b.business.telecomitalia.it
80.23.63.117	A	host117-63-static.23-80-b.business.telecomitalia.it
80.23.63.123	A	host123-63-static.23-80-b.business.telecomitalia.it
80.23.63.142	A	host142-63-static.23-80-b.business.telecomitalia.it
80.23.63.151	A	host151-63-static.23-80-b.business.telecomitalia.it
80.23.63.171	A	host171-63-static.23-80-b.business.telecomitalia.it
80.23.63.202	A	host202-63-static.23-80-b.business.telecomitalia.it
80.23.63.218	A	host218-63-static.23-80-b.business.telecomitalia.it
80.23.63.237	A	host237-63-static.23-80-b.business.telecomitalia.it
80.23.63.248	A	host248-63-static.23-80-b.business.telecomitalia.it