Robtex

Up: 5.89.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 5.89.32.0/20
Down right: 5.89.48.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
5.89.32.172	A+PTR	mail2.cbmld.com
5.89.33.241	A+PTR	net-5-89-33-241.cust.vodafonedsl.it
5.89.33.241	A	mailserver.lepleiadiservizi.org
5.89.35.216	PTR	net-5-89-35-216.cust.vodafonedsl.it
5.89.35.216	A	www.idadora.it
5.89.35.216	A	advproject.it
5.89.36.92	A+PTR	pellegrinelli.net
5.89.36.212	A+PTR	net-5-89-36-212.cust.vodafonedsl.it
5.89.39.154	A	mx1.ircom-srl.com
5.89.40.153	PTR	net-5-89-40-153.cust.vodafonedsl.it
5.89.41.31	A+PTR	net-5-89-41-31.cust.vodafonedsl.it
5.89.41.43	A+PTR	net-5-89-41-43.cust.vodafonedsl.it
5.89.41.106	PTR	net-5-89-41-106.cust.vodafonedsl.it
5.89.41.135	PTR	mail.impresapaccani.it
5.89.41.171	A+PTR	mail.luigicividini.it
5.89.41.175	A+PTR	net-5-89-41-175.cust.vodafonedsl.it
5.89.41.219	PTR	mail.mantovaniluigi.it
5.89.43.134	A+PTR	net-5-89-43-134.cust.vodafonedsl.it
5.89.43.134	A	conplast.net
5.89.43.193	PTR	net-5-89-43-193.cust.vodafonedsl.it
5.89.43.193	A	mail.manifsett.it
5.89.43.193	A	manifsett.it
5.89.43.200	A+PTR	mail2.studiopaolavigano.eu
5.89.45.57	A+PTR	net-5-89-45-57.cust.vodafonedsl.it
5.89.45.196	PTR	consultsrl.it
5.89.46.205	A+PTR	net-5-89-46-205.cust.vodafonedsl.it
5.89.46.241	PTR	smtp.sideria.it
5.89.47.130	PTR	net-5-89-47-130.cust.vodafonedsl.it
5.89.50.72	A	referti.neomedica.it
5.89.50.132	A+PTR	net-5-89-50-132.cust.vodafonedsl.it
5.89.50.132	A	mailserver.malasanitaerisarcimento.it
5.89.50.155	A+PTR	sede.goldesilver.it
5.89.50.250	A+PTR	net-5-89-50-250.cust.vodafonedsl.it
5.89.53.151	A+PTR	net-5-89-53-151.cust.vodafonedsl.it
5.89.53.151	A	www.autoricambirivaanzio.it
5.89.54.172	A+PTR	net-5-89-54-172.cust.vodafonedsl.it
5.89.54.172	A	www.stampanotte.it
5.89.57.6	A+PTR	net-5-89-57-6.cust.vodafonedsl.it
5.89.57.38	A+PTR	net-5-89-57-38.cust.vodafonedsl.it
5.89.57.132	A+PTR	net-5-89-57-132.cust.vodafonedsl.it
5.89.58.88	A+PTR	net-5-89-58-88.cust.vodafonedsl.it
5.89.58.88	A	www.synchronreferti.it
5.89.58.212	PTR	srv1.gigamat.it
5.89.58.212	A	cdprato.it
5.89.58.212	A	mail.cdprato.it
5.89.60.23	A+PTR	net-5-89-60-23.cust.vodafonedsl.it
5.89.62.80	PTR	net-5-89-62-80.cust.vodafonedsl.it
5.89.63.75	A+PTR	net-5-89-63-75.cust.vodafonedsl.it
5.89.63.75	A	energysavingcompany.it
5.89.63.75	A	marinapiccola.it