Robtex

Up: 69.196.244.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 69.196.244.0/25
Down right: 69.196.244.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
69.196.244.10	A+PTR	bb-va3-tsg-nat-01.blackboard.com
69.196.244.13	A+PTR	hrweb1stress.blackboard.com
69.196.244.15	A+PTR	bprp.blackboard.com
69.196.244.16	PTR	help2.blackboard.com
69.196.244.16	PTR	de-de.help.blackboard.com
69.196.244.16	A+PTR	no-no.help.blackboard.com
69.196.244.17	A+PTR	vpnlab.blackboard.com
69.196.244.18	A+PTR	vpndc.blackboard.com
69.196.244.19	PTR	dcad2.bbbb.net
69.196.244.21	A+PTR	contracts.blackboard.com
69.196.244.22	A+PTR	crmquote.blackboard.com
69.196.244.24	A+PTR	download2.blackboard.com
69.196.244.25	A	adrastea.blackboard.com
69.196.244.27	A	crmweb.blackboard.com
69.196.244.28	A+PTR	bbsync-qa.blackboard.com
69.196.244.30	A	ocsurvey.blackboard.com
69.196.244.31	A	institutionhelp.blackboard.com
69.196.244.31	A	tools.blackboard.com
69.196.244.34	A	dcvc1.blackboard.com
69.196.244.35	A+PTR	edugarage.blackboard.com
69.196.244.35	A	kb.blackboard.com
69.196.244.35	A	edugarage.com
69.196.244.38	A+PTR	execdcvc1.blackboard.com
69.196.244.39	A	imaps.blackboard.com
69.196.244.42	A+PTR	facebook-qa.blackboard.com
69.196.244.43	A+PTR	iphone-qa.blackboard.com
69.196.244.44	A	facebook-msn-qa.blackboard.com
69.196.244.45	A	fb3-dev.blackboard.com
69.196.244.47	A+PTR	vpndc2.blackboard.com
69.196.244.49	A+PTR	fts.blackboard.com
69.196.244.52	A	bbathome.blackboard.com
69.196.244.52	A	edugarage-forums.blackboard.com
69.196.244.53	A+PTR	itsmtp1.blackboard.com
69.196.244.56	A	mailtest.blackboard.com
69.196.244.57	A	pmaevolve.blackboard.com
69.196.244.58	A	passport.blackboard.com
69.196.244.61	A	bcremote.blackboard.com
69.196.244.62	PTR	blackboardeducatorcentral.com
69.196.244.62	PTR	blackboardinstitute.com
69.196.244.62	PTR	blackboardprosites.com
69.196.244.65	A+PTR	mail1.blackboard.com
69.196.244.67	A	password.blackboard.com
69.196.244.69	A+PTR	ssodev.blackboard.com
69.196.244.69	A+PTR	ssodev.behind.blackboard.com
69.196.244.70	A	ssostage.blackboard.com
69.196.244.71	A+PTR	bbkeystg.blackboard.com
69.196.244.71	A+PTR	stg.behind.blackboard.com
69.196.244.72	A	stgbehind.blackboard.com
69.196.244.73	A	dev.behind.blackboard.com
69.196.244.75	A+PTR	stgprovisioning.blackboard.com
69.196.244.76	A	stgbehind2011summerpilot.blackboard.com
69.196.244.76	A	stgbehind-idm-prd-pilot.blackboard.com
69.196.244.78	A	filetransfer.blackboard.com
69.196.244.80	A+PTR	sso.blackboard.com
69.196.244.82	A	bbkey.blackboard.com
69.196.244.83	A+PTR	behind2011summerpilot.blackboard.com
69.196.244.84	A+PTR	behind.blackboard.com
69.196.244.84	A	kb.blackboard.com
69.196.244.84	A	wiki.safeassign.com
69.196.244.85	A+PTR	provisioning.blackboard.com
69.196.244.90	A	getcontent.webct.com
69.196.244.99	PTR	responsive.bbbb.net
69.196.244.99	PTR	preview.blackboard.com
69.196.244.99	PTR	www.schoolwires.com
69.196.244.102	A+PTR	www.blackboardstore.com
69.196.244.102	A+PTR	blackboardstore.com
69.196.244.102	A	store.blackboard.com
69.196.244.110	A+PTR	targetprocess.blackboard.com
69.196.244.133	A	www.schoolwires.com
69.196.244.135	A+PTR	secureapp.blackboard.com
69.196.244.161	A	www.webct.com
69.196.244.161	A	www2.blackboard.com
69.196.244.161	A	webct.com
69.196.244.164	A+PTR	k12perspectives.com
69.196.244.164	PTR	prototypes.blackboard.com
69.196.244.164	PTR	secure.blackboard.com
69.196.244.165	A	forums.edugarage.com
69.196.244.165	A	discussions.blackboard.com
69.196.244.167	A+PTR	library.blackboard.com
69.196.244.167	A	library-sw.blackboard.com
69.196.244.169	A+PTR	extensions.blackboard.com
69.196.244.169	A+PTR	phoneleads.blackboard.com
69.196.244.169	PTR	survey.blackboard.com
69.196.244.170	A	hub-validation.webct.com
69.196.244.171	A	blackboardeducationopensource.com
69.196.244.171	A	slidetolearn.com
69.196.244.171	A	slidetwolearn.com
69.196.244.172	PTR	bbone.blackboard.com
69.196.244.172	A	asusundollars.com
69.196.244.172	A	jcardonline.com
69.196.244.174	A	wwwtest.blackboard.com
69.196.244.176	PTR	www.bbworld.com
69.196.244.194	A	mlcs.blackboard.com
69.196.244.198	A	qa-turnitin.blackboard.com
69.196.244.198	A	regina.blackboard.com
69.196.244.205	A	axgrant.blackboard.com
69.196.244.207	A	intdemo.blackboard.com
69.196.244.208	A+PTR	devdemo.blackboard.com
69.196.244.215	A	bb2-sol-out.blackboard.com
69.196.244.219	A	angel-qacore-mobile.blackboard.com
69.196.244.220	A	mobileangel74.blackboard.com
69.196.244.225	A+PTR	uxlab-s.blackboard.com
69.196.244.226	A	mobile010.blackboard.com
69.196.244.228	A	mobile017.blackboard.com
69.196.244.231	A+PTR	mobile001.blackboard.com
69.196.244.232	A+PTR	angel-qacore-mobilelb.blackboard.com
69.196.244.232	A+PTR	axangel.blackboard.com
69.196.244.233	A	mobileangel74lb.blackboard.com
69.196.244.244	A	appsec-whs01.blackboard.com
69.196.244.246	A	uxlab-m.blackboard.com
69.196.244.247	A+PTR	saf1-test4.blackboard.com
69.196.244.248	A+PTR	saf1-test5.blackboard.com