Robtex

Up: 88.40.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 88.40.64.0/20
Down right: 88.40.80.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
88.40.64.76	A+PTR	host76-64-static.40-88-b.business.telecomitalia.it
88.40.64.77	A+PTR	host77-64-static.40-88-b.business.telecomitalia.it
88.40.64.93	A+PTR	host93-64-static.40-88-b.business.telecomitalia.it
88.40.68.32	A+PTR	host32-68-static.40-88-b.business.telecomitalia.it
88.40.68.77	A+PTR	host77-68-static.40-88-b.business.telecomitalia.it
88.40.68.93	A+PTR	host93-68-static.40-88-b.business.telecomitalia.it
88.40.68.215	A+PTR	host215-68-static.40-88-b.business.telecomitalia.it
88.40.69.76	A+PTR	host76-69-static.40-88-b.business.telecomitalia.it
88.40.69.76	A	mailproxy2.hufschmiedebedarf.de
88.40.69.93	A+PTR	host93-69-static.40-88-b.business.telecomitalia.it
88.40.69.94	A+PTR	host94-69-static.40-88-b.business.telecomitalia.it
88.40.69.95	PTR	host95-69-static.40-88-b.business.telecomitalia.it
88.40.70.16	A+PTR	host16-70-static.40-88-b.business.telecomitalia.it
88.40.70.77	A+PTR	host77-70-static.40-88-b.business.telecomitalia.it
88.40.71.131	A+PTR	host131-71-static.40-88-b.business.telecomitalia.it
88.40.71.131	A	nibiru.it
88.40.71.131	A	shar.it
88.40.71.146	PTR	host146-71-static.40-88-b.business.telecomitalia.it
88.40.74.24	A	host24-74-static.40-88-b.business.telecomitalia.it
88.40.74.104	A	host104-74-static.40-88-b.business.telecomitalia.it
88.40.74.119	A	host119-74-static.40-88-b.business.telecomitalia.it
88.40.74.135	A	host135-74-static.40-88-b.business.telecomitalia.it
88.40.74.160	A	host160-74-static.40-88-b.business.telecomitalia.it
88.40.75.7	A	host7-75-static.40-88-b.business.telecomitalia.it
88.40.75.16	A	host16-75-static.40-88-b.business.telecomitalia.it
88.40.75.24	A	host24-75-static.40-88-b.business.telecomitalia.it
88.40.77.1	A+PTR	host1-77-static.40-88-b.business.telecomitalia.it
88.40.77.2	A+PTR	host2-77-static.40-88-b.business.telecomitalia.it
88.40.77.4	A+PTR	host4-77-static.40-88-b.business.telecomitalia.it
88.40.77.8	A	host8-77-static.40-88-b.business.telecomitalia.it
88.40.78.1	A+PTR	host1-78-static.40-88-b.business.telecomitalia.it
88.40.78.2	A+PTR	host2-78-static.40-88-b.business.telecomitalia.it
88.40.78.4	A	host4-78-static.40-88-b.business.telecomitalia.it
88.40.78.8	A	host8-78-static.40-88-b.business.telecomitalia.it
88.40.78.48	A	host48-78-static.40-88-b.business.telecomitalia.it
88.40.78.162	A	host162-78-static.40-88-b.business.telecomitalia.it
88.40.78.216	A	host216-78-static.40-88-b.business.telecomitalia.it
88.40.78.224	A	host224-78-static.40-88-b.business.telecomitalia.it
88.40.80.66	A	host66-80-static.40-88-b.business.telecomitalia.it
88.40.82.176	PTR	host176-82-static.40-88-b.business.telecomitalia.it
88.40.87.210	A+PTR	host210-87-static.40-88-b.business.telecomitalia.it
88.40.87.210	A	mail2.operapiasiccardiberninzoni.it
88.40.88.92	A+PTR	host92-88-static.40-88-b.business.telecomitalia.it
88.40.89.58	A	mailserver.studiodeberardinis.it
88.40.89.84	A	mail1.afasystems.it
88.40.89.84	A	mail.majornet.it
88.40.89.84	A	mail.accentor.it
88.40.89.224	A+PTR	host224-89-static.40-88-b.business.telecomitalia.it
88.40.89.247	A	host247-89-static.40-88-b.business.telecomitalia.it
88.40.90.55	A	host55-90-static.40-88-b.business.telecomitalia.it
88.40.90.56	A	host56-90-static.40-88-b.business.telecomitalia.it
88.40.90.103	A	host103-90-static.40-88-b.business.telecomitalia.it
88.40.90.167	A	host167-90-static.40-88-b.business.telecomitalia.it
88.40.90.197	A	host197-90-static.40-88-b.business.telecomitalia.it
88.40.90.200	A	mail.comune.vasto.ch.it
88.40.90.248	A	host248-90-static.40-88-b.business.telecomitalia.it
88.40.91.21	A	hostmail.comune.chieti.it
88.40.91.50	A	mail.dicesare.it
88.40.91.50	A	mail.mariodicesare.it
88.40.91.122	A	pop.susta-stampi.com
88.40.91.122	A	smtp.susta-stampi.com
88.40.91.122	A	host122-91-static.40-88-b.business.telecomitalia.it
88.40.91.131	PTR	host131-91-static.40-88-b.business.telecomitalia.it
88.40.91.131	A	exchange.regolo.com
88.40.92.134	A+PTR	wmail.latazzadoro.it