Robtex

Up: 69.196.242.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 69.196.242.128/26
Down right: 69.196.242.192/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
69.196.242.129	A	mail-admin.blackboard.com
69.196.242.131	A+PTR	mail-relay1-cse1.blackboard.com
69.196.242.131	A	mail-relay131.va3.blackboard.com
69.196.242.131	A	mail-relay-cse1.blackboard.com
69.196.242.132	A	mail-relay132.va3.blackboard.com
69.196.242.136	A+PTR	mail-relay6-cse1.blackboard.com
69.196.242.136	A	mail-relay-cse1.blackboard.com
69.196.242.136	A	mail-relay-va3.blackboard.com
69.196.242.137	A	mail-relay7-cse1.blackboard.com
69.196.242.138	A	mail-relay8-cse1.blackboard.com
69.196.242.139	A	mail-relay9-cse1.blackboard.com
69.196.242.140	A	mail-relay10-cse1.blackboard.com
69.196.242.142	A	eth2-0-fw1-1-cse1.blackboard.com
69.196.242.145	A	ve3-vrrp-gw1-cse1.blackboard.com
69.196.242.146	A	ve3-gw1-cse1.blackboard.com
69.196.242.147	A	ve3-gw2-cse1.blackboard.com
69.196.242.158	A	eth0-0-fw1-1-cse1.blackboard.com
69.196.242.215	PTR	fgprd-itgplatform-services-app001-eth1.mhint
69.196.242.215	A+PTR	oncall.blackboard.com
69.196.242.220	A+PTR	ns2.blackboard.com