Robtex

Up: 91.81.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 91.81.64.0/20
Down right: 91.81.80.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.81.64.0	PTR	net-91-81-64-0.cust.dsl.vodafone.it
91.81.64.74	A	businesspartner.it
91.81.65.250	A	net-91-81-65-250.cust.vodafonedsl.it
91.81.66.66	A	net-91-81-66-66.cust.vodafonedsl.it
91.81.66.140	A	net-91-81-66-140.cust.vodafonedsl.it
91.81.66.180	A	smtp.newgioco.it
91.81.66.246	A	mail.wlavita.info
91.81.68.12	A	mail.amtautotrasporti.com
91.81.72.102	A	mail.stpetermoto.it
91.81.72.202	A	mail2.viridex.it
91.81.74.142	A	net-91-81-74-142.cust.vodafonedsl.it
91.81.75.19	A	mail2.stmitalia.com
91.81.75.19	A	net-91-81-75-19.cust.vodafonedsl.it
91.81.75.19	A	mail2.stmitalia.it
91.81.75.227	A	mail.engineering-service.it
91.81.76.129	PTR	net-91-81-76-129.cust.vodafonedsl.it
91.81.77.245	A	mail.diesiscucine.com
91.81.77.245	A	diesis-v02.diesiscucine.com
91.81.77.245	A	diesis-v02.diesiscucine.it
91.81.78.3	A+PTR	mail.ricasoli.it
91.81.78.3	A	net-91-81-78-3.cust.dsl.vodafone.it
91.81.80.192	PTR	sardegnatours.it
91.81.85.66	PTR	net-91-81-85-66.cust.vodafonedsl.it
91.81.85.66	A	net-91-81-85-66.cust.dsl.vodafone.it
91.81.85.131	A	gruppovona.com
91.81.85.201	A	rocchettimarco.com
91.81.85.201	A	giuseppedematthaeis.com
91.81.85.201	A	iviaggidelperigeo.it
91.81.85.226	PTR	mail.irbm.it
91.81.86.118	A	www.itresources.it
91.81.86.238	A	candytravel.it
91.81.87.211	A	www.apitalia.it
91.81.88.148	A	net-91-81-88-148.cust.vodafonedsl.it
91.81.88.204	A	mail.elprof.it
91.81.90.38	A	ingaraweb.it
91.81.90.107	A	net-91-81-90-107.cust.vodafonedsl.it
91.81.92.137	A	net-91-81-92-137.cust.vodafonedsl.it
91.81.92.138	A	net-91-81-92-138.cust.vodafonedsl.it
91.81.92.163	A+PTR	net-91-81-92-163.cust.vodafonedsl.it
91.81.93.14	A	mx.stilevita.com
91.81.93.14	A	stilevita.com
91.81.93.14	A	net-91-81-93-14.cust.vodafonedsl.it
91.81.93.119	A	ns.iaeeu.net
91.81.93.120	A	www.frenzsrl.net
91.81.93.122	A	ns4.iaeeu.com
91.81.93.122	A	ns4.iaeeu.net
91.81.94.154	A	exchange.samiravenna.it
91.81.95.45	A	net-91-81-95-45.cust.vodafonedsl.it
91.81.95.141	A	net-91-81-95-141.cust.vodafonedsl.it
91.81.95.149	A	mail2.ibi-lorenzini.com