Robtex

Up: 193.193.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 193.193.16.0/21
Down right: 193.193.24.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
193.193.31.18	PTR	www.coface-assicurazioni.it
193.193.31.18	PTR	www.coface-italia.it
193.193.31.18	PTR	www.coface.it
193.193.31.19	PTR	dns1.viscontea.it
193.193.31.21	PTR	proxy1.coface.it
193.193.31.22	PTR	smtp-out.viscontea.it