Robtex

Up: 69.52.68.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 69.52.69.0/25
Down right: 69.52.69.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
69.52.69.23	A	ra.bfm.com
69.52.69.23	A	ra.blackrock.com
69.52.69.25	A	oa.glbext.blackrock.com
69.52.69.25	A	oa.blackrock.com
69.52.69.25	A	mail.blackrock.com
69.52.69.26	A	owa.bfm.com
69.52.69.26	A	owa.glbext.blackrock.com
69.52.69.26	A	email.blackrock.com
69.52.69.47	A	oa.bfm.com
69.52.69.47	A	eas.glbext.blackrock.com
69.52.69.47	A	eas.bfm.com
69.52.69.48	A	oa.bfm.com
69.52.69.48	A	eas.glbext.blackrock.com
69.52.69.48	A	eas.bfm.com
69.52.69.68	A	sipmra.glbext.blackrock.com
69.52.69.72	A	remote.glbext.blackrock.com
69.52.69.84	A	sentryapps.glbext.blackrock.com