Robtex

Up: 91.109.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 91.109.56.0/22
Down right: 91.109.60.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.109.57.161	A	grids03.eng.it
91.109.57.161	A	grids18.eng.it
91.109.57.161	A	grids19.eng.it
91.109.60.5	PTR	ftp.eng.it
91.109.60.17	A+PTR	fakesmtp.eng.it
91.109.60.38	A+PTR	relay.eng.it
91.109.60.39	A+PTR	relay2.eng.it
91.109.60.254	A	servizi.eng.it
91.109.61.1	PTR	dns.eng.it
91.109.61.3	PTR	web1.eng.it
91.109.61.5	PTR	upload.eng.it
91.109.61.9	PTR	rpv.eng.it
91.109.61.18	PTR	smtp.eng.it
91.109.61.18	A	ares.eng.it
91.109.61.29	A	os.eng.it
91.109.61.30	A+PTR	osm.eng.it
91.109.61.80	PTR	webmail.eng.it
91.109.61.80	A	mail.eng.it
91.109.61.81	A	ariel.eng.it
91.109.61.242	A	vpnclienti.eng.it