Robtex

Up: 213.255.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 213.255.64.0/20
Down right: 213.255.80.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.255.64.34	PTR	h255-64-34.bo1.albacom.net
213.255.64.34	A	dns.bccmp.com
213.255.64.36	A	dns1.bccmp.com
213.255.67.35	PTR	mail.pratic.it
213.255.69.211	A	mail.unionflag.it
213.255.72.177	A	net1.gransasso.it
213.255.72.177	A	shop.gransasso.it
213.255.74.27	A	mail.planetario-viaggi.it
213.255.74.28	A	smtp1.planetario-viaggi.it
213.255.74.29	A	smtp2.planetario-viaggi.it
213.255.74.68	A	mail.transcoop.com
213.255.74.163	PTR	h213-255-74-163-static.albacom.net
213.255.74.163	A	mail-4.cislreggioemilia.it
213.255.74.202	A	mail202.fmspa.it
213.255.74.242	A	mail1.riese-navigare.it
213.255.74.242	A	mail.navigare.eu
213.255.74.242	A	mail.navigare.com
213.255.78.27	A	mailbt.pace.it
213.255.78.27	A	mailbt.secom.reggio-emilia.it
213.255.78.32	PTR	h213-255-78-32.albacom.net
213.255.78.36	A	mx3.switchdns.net
213.255.78.38	A	vserver38.sisteda.it
213.255.78.39	A	vserver39.sisteda.it
213.255.78.48	A	superfastitalia.it
213.255.78.66	PTR	h213-255-78-66.albacom.net
213.255.78.66	A	rivadipo.it
213.255.78.105	A	mail.paliitalia.it
213.255.78.105	A	mail.tecnopaligroup.it
213.255.78.105	A	mail.tecnopali.it
213.255.78.245	A	mail1.pibiplast.com
213.255.78.245	A	mail1.pibiplast.it
213.255.78.245	A	mail.bomal.it
213.255.79.78	A	mail1.petrolig.it
213.255.79.171	A	*.asf.it
213.255.79.171	A	asf.it
213.255.79.171	A	mail.asf.it
213.255.83.94	A	infoservsas.com
213.255.90.106	A	www.unitelm.it
213.255.93.1	PTR	ip-1-93-dsl-customer.fontel.it
213.255.93.99	PTR	ip-99-93-dsl-customer.fontel.it
213.255.93.111	A	nuovoelaion.com
213.255.93.130	PTR	ip-130-93-dsl-customer.fontel.it
213.255.93.162	PTR	ip-162-93-dsl-customer.fontel.it
213.255.95.98	A	eliair.it
213.255.95.98	A	mail.eliair.it