Robtex

Up: 89.21.200.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 89.21.204.0/23
Down right: 89.21.206.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
89.21.204.22	PTR	host22-204-21-89.convergenze.it
89.21.204.28	PTR	host28-204-21-89.convergenze.it
89.21.204.28	A	cilentoeat.com
89.21.204.29	PTR	host29-204-21-89.convergenze.it
89.21.204.29	A	www.bccaquara.it
89.21.204.29	A	bccaquara.it
89.21.204.45	PTR	host45-204-21-89.convergenze.it
89.21.204.45	A	convergenze.it
89.21.204.46	PTR	host46-204-21-89.convergenze.it
89.21.204.46	A	aristeaspa.eu
89.21.204.46	A	sicert.net
89.21.204.57	A	imap.convergenze.it
89.21.204.67	PTR	host67-204-21-89.convergenze.it
89.21.204.69	PTR	host69-204-21-89.convergenze.it
89.21.204.69	A	www.stiletv.it
89.21.204.83	A	www.marcheholiday.it
89.21.204.83	A	marcheholiday.it
89.21.204.86	A	cloliday.com
89.21.204.94	A	wireless-experience.com
89.21.204.184	PTR	host184-204-21-89.convergenze.it
89.21.204.214	PTR	host214-204-21-89.convergenze.it
89.21.204.220	PTR	host220-204-21-89.convergenze.it
89.21.204.223	PTR	host223-204-21-89.convergenze.it
89.21.204.226	PTR	host226-204-21-89.convergenze.it
89.21.204.233	PTR	host233-204-21-89.convergenze.it
89.21.204.250	PTR	host250-204-21-89.convergenze.it
89.21.205.22	PTR	host22-205-21-89.convergenze.it
89.21.205.57	PTR	host57-205-21-89.convergenze.it
89.21.205.71	PTR	host71-205-21-89.convergenze.it
89.21.205.101	PTR	host101-205-21-89.convergenze.it
89.21.205.120	PTR	host120-205-21-89.convergenze.it
89.21.205.123	PTR	host123-205-21-89.convergenze.it
89.21.205.176	PTR	host176-205-21-89.convergenze.it
89.21.205.206	PTR	host206-205-21-89.convergenze.it
89.21.206.6	PTR	host6-206-21-89.convergenze.it
89.21.206.10	PTR	host10-206-21-89.convergenze.it
89.21.206.19	PTR	host19-206-21-89.convergenze.it
89.21.206.37	PTR	host37-206-21-89.convergenze.it
89.21.206.76	PTR	host76-206-21-89.convergenze.it
89.21.206.125	PTR	host125-206-21-89.convergenze.it
89.21.206.135	PTR	host135-206-21-89.convergenze.it
89.21.206.136	PTR	host136-206-21-89.convergenze.it
89.21.206.137	PTR	host137-206-21-89.convergenze.it
89.21.206.169	PTR	host169-206-21-89.convergenze.it
89.21.206.171	PTR	host171-206-21-89.convergenze.it
89.21.206.243	PTR	host243-206-21-89.convergenze.it
89.21.207.1	PTR	host1-207-21-89.convergenze.it
89.21.207.5	PTR	host5-207-21-89.convergenze.it
89.21.207.255	PTR	host255-207-21-89.convergenze.it