Robtex

Up: 217.73.192.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 217.73.208.0/21
Down right: 217.73.216.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.73.208.1	PTR	static-217-73-208-001.clienti.tiscali.it
217.73.208.26	A	proxy-1.istella.it
217.73.208.27	A	proxy-2.istella.it
217.73.208.67	PTR	crawler-57.crawler.istella.it
217.73.208.98	PTR	crawler-88.crawler.istella.it
217.73.208.99	PTR	crawler-89.crawler.istella.it
217.73.208.140	A	proxy-11.crawler.istella.it
217.73.208.143	A	ic-news-1-nuova.crawler.istella.it
217.73.208.144	PTR	t-crawler-4.crawler.istella.it
217.73.208.145	A+PTR	t-crawler-5.crawler.istella.it
217.73.208.146	A+PTR	t-crawler-6.crawler.istella.it
217.73.208.147	A+PTR	t-crawler-7.crawler.istella.it
217.73.208.148	A	t-crawler-8.crawler.istella.it
217.73.212.11	A	posta.ariadsl.it
217.73.212.17	PTR	vhost93.areaserver.it
217.73.212.17	A	ariamax.it
217.73.212.17	A	www.in-aria.it
217.73.212.34	PTR	vs9034.areaserver.it
217.73.212.34	A	mail.latazzadoro.com
217.73.212.34	A	mail.caffekaralis.com
217.73.212.41	A	michelevodolatattoo.com
217.73.212.41	A	mail.michelevodolatattoo.com
217.73.212.83	A	indirizzoinghilterra.it
217.73.212.98	A	rome-tour.it
217.73.212.98	A	mail.rome-tour.it
217.73.212.136	A	mx2.a-firenze.it
217.73.212.136	A	mx1.a-firenze.it
217.73.212.161	A	mail.romanomusumarra.com
217.73.212.223	A	mail.viverepinerolo.it
217.73.212.223	A	mail.viveremilano.biz
217.73.212.223	A	mail.viverepiemonte.com
217.73.213.101	A	aste-auto.com
217.73.213.101	A	mail.aste-auto.com
217.73.214.4	PTR	static-217-73-214-004.clienti.tiscali.it
217.73.214.16	PTR	static-217-73-214-016.clienti.tiscali.it
217.73.214.18	PTR	static-217-73-214-018.clienti.tiscali.it
217.73.214.224	PTR	static-217-73-214-224.clienti.tiscali.it
217.73.220.83	PTR	static-217-73-220-083.clienti.tiscali.it
217.73.221.2	PTR	static-217-73-221-002.clienti.tiscali.it
217.73.222.2	PTR	static-217-73-222-002.clienti.tiscali.it
217.73.222.18	PTR	static-217-73-222-018.clienti.tiscali.it
217.73.222.35	PTR	static-217-73-222-035.clienti.tiscali.it
217.73.222.80	PTR	static-217-73-222-080.clienti.tiscali.it
217.73.222.97	PTR	static-217-73-222-097.clienti.tiscali.it
217.73.222.114	PTR	static-217-73-222-114.clienti.tiscali.it
217.73.222.115	PTR	static-217-73-222-115.clienti.tiscali.it
217.73.222.131	PTR	static-217-73-222-131.clienti.tiscali.it
217.73.222.160	PTR	static-217-73-222-160.clienti.tiscali.it
217.73.222.224	PTR	static-217-73-222-224.clienti.tiscali.it
217.73.222.226	PTR	static-217-73-222-226.clienti.tiscali.it
217.73.222.227	PTR	static-217-73-222-227.clienti.tiscali.it
217.73.222.241	PTR	static-217-73-222-241.clienti.tiscali.it
217.73.222.243	PTR	static-217-73-222-243.clienti.tiscali.it