Robtex

Up: 87.21.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 87.21.224.0/20
Down right: 87.21.240.0/20

IP	Type	Hostname
87.21.224.16	A	host16-224-dynamic.21-87-r.retail.telecomitalia.it
87.21.224.110	A	host110-224-dynamic.21-87-r.retail.telecomitalia.it
87.21.225.49	A	host49-225-dynamic.21-87-r.retail.telecomitalia.it
87.21.225.103	A	host103-225-dynamic.21-87-r.retail.telecomitalia.it
87.21.225.121	A	host121-225-dynamic.21-87-r.retail.telecomitalia.it
87.21.225.137	A	host137-225-dynamic.21-87-r.retail.telecomitalia.it
87.21.225.166	A	host166-225-dynamic.21-87-r.retail.telecomitalia.it
87.21.226.58	A	host58-226-dynamic.21-87-r.retail.telecomitalia.it
87.21.227.10	A	host10-227-dynamic.21-87-r.retail.telecomitalia.it
87.21.230.86	A	host86-230-dynamic.21-87-r.retail.telecomitalia.it
87.21.231.134	A	host134-231-dynamic.21-87-r.retail.telecomitalia.it
87.21.231.167	A	host167-231-dynamic.21-87-r.retail.telecomitalia.it
87.21.231.174	A	sefoimaging.com
87.21.232.94	A	pichini.dyndns.org
87.21.233.183	A	host183-233-dynamic.21-87-r.retail.telecomitalia.it
87.21.233.230	A	host230-233-dynamic.21-87-r.retail.telecomitalia.it
87.21.234.133	A	host133-234-dynamic.21-87-r.retail.telecomitalia.it
87.21.234.244	A	host244-234-dynamic.21-87-r.retail.telecomitalia.it
87.21.235.140	A	00115f08ff33.dvrlink.net
87.21.236.213	A	host213-236-dynamic.21-87-r.retail.telecomitalia.it
87.21.242.53	A	host53-242-dynamic.21-87-r.retail.telecomitalia.it
87.21.244.14	A	host14-244-dynamic.21-87-r.retail.telecomitalia.it
87.21.244.56	A	host56-244-dynamic.21-87-r.retail.telecomitalia.it
87.21.244.134	A	host134-244-dynamic.21-87-r.retail.telecomitalia.it
87.21.249.49	A	host49-249-dynamic.21-87-r.retail.telecomitalia.it
87.21.250.18	A	host18-250-dynamic.21-87-r.retail.telecomitalia.it
87.21.253.179	A	host179-253-dynamic.21-87-r.retail.telecomitalia.it
87.21.254.227	A+PTR	host227-254-dynamic.21-87-r.retail.telecomitalia.it
87.21.255.111	A	host111-255-dynamic.21-87-r.retail.telecomitalia.it