Robtex

Up: 192.225.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 192.225.48.0/22
Down right: 192.225.52.0/22

IP	Type	Hostname
192.225.50.2	PTR	web2.hp.xor.com
192.225.50.10	PTR	apms-a.hp.xor.com
192.225.50.11	PTR	www.rssx.hp.com
192.225.50.12	PTR	buttonredirect.hp.com
192.225.50.20	PTR	web1-b.hp.xor.com
192.225.50.56	PTR	hpfoundry2.xor.com
192.225.52.115	A	email.dewalt.com
192.225.52.116	A	email.blackanddecker.com