Robtex

Up: 81.31.154.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 81.31.154.0/25
Down right: 81.31.154.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.31.154.0	PTR	154.31.81.in-addr.arpa
81.31.154.5	A	garageitalia.ro
81.31.154.5	A	mail.garageitalia.ro
81.31.154.5	A	*.garageitalia.ro
81.31.154.8	A	mail.avventuramare.ro
81.31.154.8	A	mail.rakebrain.it
81.31.154.8	A	avventuramare.ro
81.31.154.134	A+PTR	dns2.dnshosting.it
81.31.154.134	A	accoglienzareligiosa.com
81.31.154.140	A+PTR	vc.dnshosting.it
81.31.154.171	A+PTR	esx1.dnshosting.it
81.31.154.224	A	rhvwpr.colt-engine.it