Robtex

Up: 80.19.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 80.19.32.0/20
Down right: 80.19.48.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.19.32.23	A	host23-32-static.19-80-b.business.telecomitalia.it
80.19.32.24	A	host24-32-static.19-80-b.business.telecomitalia.it
80.19.32.64	A+PTR	host64-32-static.19-80-b.business.telecomitalia.it
80.19.32.71	A	host71-32-static.19-80-b.business.telecomitalia.it
80.19.33.10	A	remote.speednetwifi.it
80.19.33.10	A	mail.speednetwifi.it
80.19.33.10	A	mail.speednetwifi.com
80.19.33.12	A	host12-33-static.19-80-b.business.telecomitalia.it
80.19.33.34	PTR	host34-33-static.19-80-b.business.telecomitalia.it
80.19.33.34	A	maragna.net
80.19.33.54	A	iasiportale.iasi.it
80.19.33.54	A	mail.iasi.it
80.19.33.79	A	host79-33-static.19-80-b.business.telecomitalia.it
80.19.33.96	A	host96-33-static.19-80-b.business.telecomitalia.it
80.19.33.124	A	host124-33-static.19-80-b.business.telecomitalia.it
80.19.33.162	A	mx1.travaglinigroup.it
80.19.33.162	A	mx1.travaglinigroup.com
80.19.33.171	A	mail.vemit.com
80.19.33.198	A	host198-33-static.19-80-b.business.telecomitalia.it
80.19.34.190	A	host190-34-static.19-80-b.business.telecomitalia.it
80.19.35.2	A+PTR	host2-35-static.19-80-b.business.telecomitalia.it
80.19.35.38	A	host38-35-static.19-80-b.business.telecomitalia.it
80.19.35.235	A	mail.slam-pr.it
80.19.35.235	A	host235-35-static.19-80-b.business.telecomitalia.it
80.19.36.26	A	remote.cartlandia.it
80.19.36.26	A	www.cartlandia.it
80.19.36.48	A	host48-36-static.19-80-b.business.telecomitalia.it
80.19.36.51	A	host51-36-static.19-80-b.business.telecomitalia.it
80.19.36.243	A	host243-36-static.19-80-b.business.telecomitalia.it
80.19.38.2	PTR	host2-38-static.19-80-b.business.telecomitalia.it
80.19.38.2	A	www.obg-irccs.rm.it
80.19.38.2	A	provirtute.org
80.19.38.4	PTR	host4-38-static.19-80-b.business.telecomitalia.it
80.19.38.166	A	mail.korusweb.it
80.19.39.2	PTR	host2-39-static.19-80-b.business.telecomitalia.it
80.19.39.74	A	tecalsrl.com
80.19.39.74	A	mail.tecalsrl.com
80.19.39.147	A	mail.dallai.com
80.19.39.147	A	mail.dallai.it
80.19.39.147	A	dallai.it
80.19.39.157	A	mail.tecnogaz.com
80.19.40.2	A+PTR	host2-40-static.19-80-b.business.telecomitalia.it
80.19.40.3	PTR	host3-40-static.19-80-b.business.telecomitalia.it
80.19.40.3	A	mx2.studiopinto.eu
80.19.40.3	A	mx2.multipartner.com
80.19.41.37	A	referti.asl.fr.it
80.19.41.213	A	host213-41-static.19-80-b.business.telecomitalia.it
80.19.42.18	A	host18-42-static.19-80-b.business.telecomitalia.it
80.19.42.22	A	host22-42-static.19-80-b.business.telecomitalia.it
80.19.42.25	A	relay2.confimpresaitalia.com
80.19.42.25	A	relay2.vacanzevacanze.com
80.19.42.75	A	host75-42-static.19-80-b.business.telecomitalia.it
80.19.42.161	A+PTR	host161-42-static.19-80-b.business.telecomitalia.it
80.19.42.178	A	host178-42-static.19-80-b.business.telecomitalia.it
80.19.42.242	A	host242-42-static.19-80-b.business.telecomitalia.it
80.19.42.248	A	host248-42-static.19-80-b.business.telecomitalia.it
80.19.42.252	A	host252-42-static.19-80-b.business.telecomitalia.it
80.19.43.20	A	mail2.sassi.it
80.19.43.20	A	mail.sassi.it
80.19.43.154	A	mail.romagnaruote.com
80.19.48.3	A+PTR	autodiscover.gldlogistica.it
80.19.48.3	A+PTR	autodiscover.ilplogistica.it
80.19.48.3	A+PTR	autodiscover.femalogistica.com
80.19.48.11	A+PTR	mail.omniainvestspa.it
80.19.48.240	A	host240-48-static.19-80-b.business.telecomitalia.it
80.19.49.141	A	host141-49-static.19-80-b.business.telecomitalia.it
80.19.49.141	A	adsl2.csi.telecomitalia.it
80.19.49.148	A	www.wholesale.telecomitalia.com
80.19.49.150	A	www.rete-telecomitalia.it
80.19.49.160	PTR	host160-49-static.19-80-b.business.telecomitalia.it
80.19.49.176	A	host176-49-static.19-80-b.business.telecomitalia.it
80.19.49.199	A	host199-49-static.19-80-b.business.telecomitalia.it
80.19.49.216	A	host216-49-static.19-80-b.business.telecomitalia.it
80.19.50.8	A	host8-50-static.19-80-b.business.telecomitalia.it
80.19.52.11	A	posta.orim.it
80.19.52.50	A	mail.bacciardistudiolegale.it
80.19.52.100	A	mail.sistemidufficio.it
80.19.52.222	A	www.adimpex.it
80.19.52.222	A	adimpex.it
80.19.52.222	A	mail.adimpex.it
80.19.53.2	A+PTR	host2-53-static.19-80-b.business.telecomitalia.it
80.19.53.51	A	host51-53-static.19-80-b.business.telecomitalia.it
80.19.53.74	A	areitaly.net
80.19.54.50	A	ns1.cidonio.it
80.19.54.50	A	www.cidonio.it
80.19.54.50	A	cidonio.it
80.19.54.55	A	mail.cidonio.it
80.19.54.80	A	host80-54-static.19-80-b.business.telecomitalia.it
80.19.55.1	PTR	host1-55-static.19-80-b.business.telecomitalia.it
80.19.55.116	A	host116-55-static.19-80-b.business.telecomitalia.it
80.19.55.214	A	host214-55-static.19-80-b.business.telecomitalia.it
80.19.58.136	A	host136-58-static.19-80-b.business.telecomitalia.it
80.19.58.230	A	remote.vega-servizi.it
80.19.59.46	A	assaabloyitalia.it
80.19.59.118	A	host118-59-static.19-80-b.business.telecomitalia.it
80.19.59.196	A	gw.gruppoinnova.com
80.19.59.196	A	host196-59-static.19-80-b.business.telecomitalia.it
80.19.61.209	A	host209-61-static.19-80-b.business.telecomitalia.it
80.19.62.73	A	host73-62-static.19-80-b.business.telecomitalia.it
80.19.62.142	A	metamorfosiroma.it
80.19.62.142	A	www.reasonthat.com
80.19.62.194	A	mailssl.trustitalia.it
80.19.63.23	A	host23-63-static.19-80-b.business.telecomitalia.it
80.19.63.61	A	host61-63-static.19-80-b.business.telecomitalia.it
80.19.63.97	A	host97-63-static.19-80-b.business.telecomitalia.it
80.19.63.139	A	host139-63-static.19-80-b.business.telecomitalia.it
80.19.63.139	A	mail.aux.urbe.it
80.19.63.166	A	host166-63-static.19-80-b.business.telecomitalia.it
80.19.63.195	PTR	host195-63-static.19-80-b.business.telecomitalia.it
80.19.63.195	A	mailsintesi.sintesispa.it