Robtex

Up: 81.112.128.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 81.112.128.0/20
Down right: 81.112.144.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.112.137.115	A+PTR	host115-137-static.112-81-b.business.telecomitalia.it
81.112.137.115	A	proxy.dellorto.it
81.112.137.115	A	mail.dellorto.it
81.112.137.127	A	host127-137-static.112-81-b.business.telecomitalia.it
81.112.137.133	A+PTR	mbox.poretti.it
81.112.137.136	A+PTR	host136-137-static.112-81-b.business.telecomitalia.it
81.112.137.151	A	host151-137-static.112-81-b.business.telecomitalia.it
81.112.137.192	A	host192-137-static.112-81-b.business.telecomitalia.it
81.112.137.242	A	mx.colnagonews.com
81.112.137.248	A	host248-137-static.112-81-b.business.telecomitalia.it
81.112.142.154	A	mail.media-lario.it
81.112.142.154	A	mail.media-lario.cn
81.112.142.154	A	mail.medialario.com
81.112.144.27	A+PTR	host27-144-static.112-81-b.business.telecomitalia.it
81.112.144.66	A+PTR	host66-144-static.112-81-b.business.telecomitalia.it
81.112.144.79	A+PTR	host79-144-static.112-81-b.business.telecomitalia.it
81.112.144.91	A+PTR	host91-144-static.112-81-b.business.telecomitalia.it
81.112.144.93	A	host93-144-static.112-81-b.business.telecomitalia.it
81.112.144.96	A	host96-144-static.112-81-b.business.telecomitalia.it
81.112.144.97	A+PTR	host97-144-static.112-81-b.business.telecomitalia.it
81.112.144.99	A+PTR	host99-144-static.112-81-b.business.telecomitalia.it
81.112.147.167	A+PTR	host167-147-static.112-81-b.business.telecomitalia.it
81.112.153.15	A+PTR	host15-153-static.112-81-b.business.telecomitalia.it
81.112.153.16	A	host16-153-static.112-81-b.business.telecomitalia.it
81.112.153.32	A	host32-153-static.112-81-b.business.telecomitalia.it
81.112.153.63	A	host63-153-static.112-81-b.business.telecomitalia.it
81.112.153.95	A+PTR	host95-153-static.112-81-b.business.telecomitalia.it
81.112.153.96	A+PTR	host96-153-static.112-81-b.business.telecomitalia.it
81.112.153.116	A+PTR	mail.accuma.it
81.112.153.116	A	mail.accuma.de
81.112.153.116	A	mail01.accuma.it
81.112.153.123	A+PTR	mail01.accuma.it
81.112.153.151	A+PTR	host151-153-static.112-81-b.business.telecomitalia.it
81.112.153.168	A+PTR	host168-153-static.112-81-b.business.telecomitalia.it
81.112.153.169	A	host169-153-static.112-81-b.business.telecomitalia.it
81.112.153.170	A	host170-153-static.112-81-b.business.telecomitalia.it
81.112.154.26	A+PTR	host26-154-static.112-81-b.business.telecomitalia.it
81.112.154.26	A	carmelo.sapici.it
81.112.154.70	A+PTR	host70-154-static.112-81-b.business.telecomitalia.it
81.112.155.172	PTR	host172-155-static.112-81-b.business.telecomitalia.it
81.112.155.172	A	mx.comune.triuggio.mi.it
81.112.155.230	A+PTR	mail.gruppoaturia.com
81.112.156.104	A+PTR	host104-156-static.112-81-b.business.telecomitalia.it
81.112.157.14	A+PTR	host14-157-static.112-81-b.business.telecomitalia.it
81.112.157.193	A+PTR	host193-157-static.112-81-b.business.telecomitalia.it
81.112.158.196	A+PTR	host196-158-static.112-81-b.business.telecomitalia.it