Robtex

Up: 198.73.96.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 198.73.96.0/23
Down right: 198.73.98.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
198.73.96.15	A	mnbl-g1.infinitecampus.net
198.73.96.15	A	mnbl-g1.infinitecampus.org
198.73.96.15	A	mnbl-g1.infinitecampus.com
198.73.96.16	A	ns1.infinitecampus.com
198.73.96.17	A+PTR	mg-dns01.infinitecampus.org
198.73.96.20	A+PTR	smtp-relay.infinitecampus.org
198.73.96.28	A+PTR	community.infinitecampus.com
198.73.96.120	A	cpu.infinitecampus.com
198.73.96.122	PTR	moodle.infinitecampus.com
198.73.96.122	A	classroom.infinitecampus.com
198.73.96.123	A	lists.infinitecampus.com
198.73.96.126	A+PTR	media.infinitecampus.com
198.73.96.126	A	infinitecampusfoundation.org
198.73.96.130	A	id.infinitecampus.com
198.73.97.11	A	content.infinitecampus.com
198.73.97.12	PTR	eqtestlearning.infinitecampus.com
198.73.97.13	A	bullochga.cloud.infinitecampus.org
198.73.97.21	A	campus.toombs.k12.ga.us
198.73.97.29	A	campus.colquitt.k12.ga.us
198.73.97.31	A	shalerpa.cloud.infinitecampus.org
198.73.97.38	A	hauppaugeny.cloud.infinitecampus.org
198.73.97.50	A	search.cloud.infinitecampus.org
198.73.97.53	PTR	camelot.infinitecampus.org
198.73.97.53	A	grandrapidsmn.cloud.infinitecampus.org
198.73.97.58	PTR	mvusdca.infinitecampus.org
198.73.97.59	A	williamfloydny.cloud.infinitecampus.org
198.73.97.66	A+PTR	hopkinsmn.infinitecampus.org
198.73.97.66	A	campus.hopkinsschools.org
198.73.97.69	A+PTR	maine.infinitecampus.org
198.73.97.143	A	orangeeastvt.cloud.infinitecampus.org
198.73.97.159	A	mobile-prod.cloud.infinitecampus.com
198.73.97.160	A	cmq.cloud.infinitecampus.com
198.73.97.166	PTR	mainlandregional.infinitecampus.org
198.73.97.171	A	prod.cloud.campuslearning.com
198.73.97.244	PTR	plainwellschools.infinitecampus.org
198.73.97.247	A	hosting.cloud.infinitecampus.net
198.73.97.252	A	isd77.k12.mn.us
198.73.98.38	A+PTR	hamiltonwi.infinitecampus.org
198.73.98.38	A	hamiltonwi.cloud.infinitecampus.org
198.73.98.42	A	northwarrennj.cloud.infinitecampus.org
198.73.98.50	PTR	clarkconv.cloud.infinitecampus.org
198.73.98.50	A	campus.ccsd.net
198.73.98.64	A	campus.colquitt.k12.ga.us
198.73.98.64	A	colquittga.cloud.infinitecampus.org
198.73.98.64	A	colquittga.infinitecampus.org
198.73.98.84	A	toombsga.infinitecampus.org
198.73.98.84	A	toombsga.cloud.infinitecampus.org
198.73.98.89	A	mitchellga.cloud.infinitecampus.org
198.73.98.92	A+PTR	clarkega.cloud.infinitecampus.org
198.73.98.104	A	natomasunified.cloud.infinitecampus.org
198.73.98.114	A	bvsd.cloud.infinitecampus.org
198.73.98.114	A	bvsd.infinitecampus.org
198.73.98.136	A	updates.cloud.infinitecampus.net
198.73.98.154	A	azcloud1.infinitecampus.org
198.73.98.160	A+PTR	necloud2.cloud.infinitecampus.org
198.73.98.164	A+PTR	doughertyga.cloud.infinitecampus.org
198.73.98.178	A	iacloud1.infinitecampus.org
198.73.98.178	A	iacloud1.cloud.infinitecampus.org
198.73.98.180	A+PTR	wicloud1.cloud.infinitecampus.org
198.73.98.197	A	hawaii.infinitecampus.org
198.73.98.197	A	hawaii.cloud.infinitecampus.org
198.73.98.209	A	washoenv.cloud.infinitecampus.org
198.73.98.213	PTR	campuspeachschoolsorg.cloud.infinitecampus.org
198.73.98.213	A	apsk12.infinitecampus.org
198.73.98.213	A	ic.apsk12.org
198.73.98.221	A	jcpsky.cloud.infinitecampus.org
198.73.98.235	A	srvusd.cloud.infinitecampus.org
198.73.98.251	A+PTR	clarksvillein.cloud.infinitecampus.org
198.73.99.113	A	hesstonks.cloud.infinitecampus.org
198.73.99.119	A	nspcsa.cloud.infinitecampus.org
198.73.99.120	A	plainwellschools.cloud.infinitecampus.org
198.73.99.126	A	mvusdca.cloud.infinitecampus.org
198.73.99.131	A	mainlandregional.cloud.infinitecampus.org
198.73.99.134	A	campus.hopkinsschools.org
198.73.99.134	A	hopkinsmn.cloud.infinitecampus.org
198.73.99.151	A	ascendlearning.cloud.infinitecampus.org
198.73.99.155	A	dunklinmo.cloud.infinitecampus.org
198.73.99.172	A	turnerusd202.cloud.infinitecampus.org
198.73.99.190	A	cowetaga.cloud.infinitecampus.org
198.73.99.211	A	methuenma.cloud.infinitecampus.org
198.73.99.240	A	kyede12.cloud.infinitecampus.org
198.73.99.245	A	kycde4.cloud.infinitecampus.org
198.73.99.248	A	instruction.cdr.cloud.infinitecampus.com
198.73.99.249	A	sandbox.instruction.cloud.infinitecampus.com