Robtex

Up: 81.123.128.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 81.123.128.0/20
Down right: 81.123.144.0/20

IP	Type	Hostname
81.123.144.8	A	host8-144-static.123-81-b.business.telecomitalia.it
81.123.144.71	A	host71-144-static.123-81-b.business.telecomitalia.it
81.123.144.95	A	host95-144-static.123-81-b.business.telecomitalia.it
81.123.144.219	A	host219-144-static.123-81-b.business.telecomitalia.it
81.123.146.17	A+PTR	host17-146-static.123-81-b.business.telecomitalia.it