Robtex

Up: 192.107.50.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 192.107.51.0/25
Down right: 192.107.51.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.107.51.2	A+PTR	efr406.frascati.enea.it
192.107.51.3	A+PTR	mail.enea.it
192.107.51.3	A	mail.bologna.enea.it
192.107.51.3	A	mail.ylichron.it
192.107.51.8	A+PTR	w2ksrv-vpn.frascati.enea.it
192.107.51.10	A	mailsrv-old.frascati.enea.it
192.107.51.14	A+PTR	fusvm1.frascati.enea.it
192.107.51.14	A	www.fusione.enea.it
192.107.51.29	A+PTR	nat-51-1.frascati.enea.it
192.107.51.35	PTR	nat-51-7.frascati.enea.it
192.107.51.73	A+PTR	webcam-ipi01.frascati.enea.it
192.107.51.77	A+PTR	ipi03.frascati.enea.it
192.107.51.147	A+PTR	frascati-nx.frascati.enea.it
192.107.51.154	A+PTR	efrosf.frascati.enea.it
192.107.51.154	A	info6000.frascati.enea.it
192.107.51.154	A	www.frascati.enea.it