Robtex

Up: 81.73.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 81.73.224.0/20
Down right: 81.73.240.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.73.224.12	A+PTR	host12-224-static.73-81-b.business.telecomitalia.it
81.73.224.12	A	goldenboys.org
81.73.224.62	A+PTR	host62-224-static.73-81-b.business.telecomitalia.it
81.73.224.104	A+PTR	host104-224-static.73-81-b.business.telecomitalia.it
81.73.225.40	A+PTR	host40-225-static.73-81-b.business.telecomitalia.it
81.73.225.174	A	host174-225-static.73-81-b.business.telecomitalia.it
81.73.225.247	PTR	host247-225-static.73-81-b.business.telecomitalia.it
81.73.226.114	A+PTR	host114-226-static.73-81-b.business.telecomitalia.it
81.73.231.2	A+PTR	host2-231-static.73-81-b.business.telecomitalia.it
81.73.231.3	A+PTR	host3-231-static.73-81-b.business.telecomitalia.it
81.73.231.10	A	host10-231-static.73-81-b.business.telecomitalia.it
81.73.231.12	A	host12-231-static.73-81-b.business.telecomitalia.it
81.73.231.32	PTR	host32-231-static.73-81-b.business.telecomitalia.it
81.73.231.37	A	host37-231-static.73-81-b.business.telecomitalia.it
81.73.231.38	A	host38-231-static.73-81-b.business.telecomitalia.it
81.73.231.67	PTR	host67-231-static.73-81-b.business.telecomitalia.it
81.73.231.78	A	host78-231-static.73-81-b.business.telecomitalia.it
81.73.231.83	A	host83-231-static.73-81-b.business.telecomitalia.it
81.73.231.104	A	host104-231-static.73-81-b.business.telecomitalia.it
81.73.231.122	A	host122-231-static.73-81-b.business.telecomitalia.it
81.73.231.130	PTR	host-81-73-231-130.business.telecomitalia.it
81.73.231.130	A	host130-231-static.73-81-b.business.telecomitalia.it
81.73.231.132	A	host132-231-static.73-81-b.business.telecomitalia.it
81.73.231.137	A	host137-231-static.73-81-b.business.telecomitalia.it
81.73.231.138	A	host138-231-static.73-81-b.business.telecomitalia.it
81.73.231.160	A+PTR	host160-231-static.73-81-b.business.telecomitalia.it
81.73.231.167	A	host167-231-static.73-81-b.business.telecomitalia.it
81.73.231.179	A	host179-231-static.73-81-b.business.telecomitalia.it
81.73.231.181	A	host181-231-static.73-81-b.business.telecomitalia.it
81.73.231.209	A	host209-231-static.73-81-b.business.telecomitalia.it
81.73.231.217	A	host217-231-static.73-81-b.business.telecomitalia.it
81.73.231.221	A	host221-231-static.73-81-b.business.telecomitalia.it
81.73.231.229	A	host229-231-static.73-81-b.business.telecomitalia.it
81.73.231.232	A	host232-231-static.73-81-b.business.telecomitalia.it
81.73.231.250	A	host250-231-static.73-81-b.business.telecomitalia.it
81.73.232.117	A+PTR	host117-232-static.73-81-b.business.telecomitalia.it
81.73.234.191	A+PTR	host191-234-static.73-81-b.business.telecomitalia.it
81.73.234.239	A+PTR	host239-234-static.73-81-b.business.telecomitalia.it
81.73.235.139	A+PTR	host139-235-static.73-81-b.business.telecomitalia.it
81.73.239.236	A+PTR	host236-239-static.73-81-b.business.telecomitalia.it
81.73.242.76	A+PTR	host76-242-static.73-81-b.business.telecomitalia.it
81.73.243.14	A	mail.nsm.it
81.73.243.14	A	www.nsm.it
81.73.243.14	A	dreams.nsm.it
81.73.245.4	A+PTR	host4-245-static.73-81-b.business.telecomitalia.it
81.73.245.15	A	host15-245-static.73-81-b.business.telecomitalia.it
81.73.245.29	A	host29-245-static.73-81-b.business.telecomitalia.it
81.73.245.35	A+PTR	host35-245-static.73-81-b.business.telecomitalia.it
81.73.245.37	A	host37-245-static.73-81-b.business.telecomitalia.it
81.73.245.38	A	host38-245-static.73-81-b.business.telecomitalia.it
81.73.245.43	A	host43-245-static.73-81-b.business.telecomitalia.it
81.73.245.72	A	host72-245-static.73-81-b.business.telecomitalia.it
81.73.245.82	A	host82-245-static.73-81-b.business.telecomitalia.it
81.73.245.96	A+PTR	host96-245-static.73-81-b.business.telecomitalia.it
81.73.245.106	A	host106-245-static.73-81-b.business.telecomitalia.it
81.73.245.112	A	host112-245-static.73-81-b.business.telecomitalia.it
81.73.245.115	A	host115-245-static.73-81-b.business.telecomitalia.it
81.73.245.152	A	host152-245-static.73-81-b.business.telecomitalia.it
81.73.245.166	A	host166-245-static.73-81-b.business.telecomitalia.it
81.73.245.185	A	host185-245-static.73-81-b.business.telecomitalia.it
81.73.245.187	A	host187-245-static.73-81-b.business.telecomitalia.it
81.73.245.196	A	host196-245-static.73-81-b.business.telecomitalia.it
81.73.245.198	A	host198-245-static.73-81-b.business.telecomitalia.it
81.73.245.209	A	host209-245-static.73-81-b.business.telecomitalia.it
81.73.245.211	A	host211-245-static.73-81-b.business.telecomitalia.it
81.73.245.224	A+PTR	host224-245-static.73-81-b.business.telecomitalia.it
81.73.245.228	A	host228-245-static.73-81-b.business.telecomitalia.it
81.73.245.239	A	host239-245-static.73-81-b.business.telecomitalia.it
81.73.245.246	A	host246-245-static.73-81-b.business.telecomitalia.it
81.73.247.150	A+PTR	host150-247-static.73-81-b.business.telecomitalia.it
81.73.250.170	A+PTR	host170-250-static.73-81-b.business.telecomitalia.it
81.73.251.197	A+PTR	host197-251-static.73-81-b.business.telecomitalia.it
81.73.252.149	A+PTR	host149-252-static.73-81-b.business.telecomitalia.it
81.73.253.10	A+PTR	host10-253-static.73-81-b.business.telecomitalia.it
81.73.255.16	A+PTR	host16-255-static.73-81-b.business.telecomitalia.it