Robtex

Up: 168.221.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 168.221.32.0/20
Down right: 168.221.48.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
168.221.53.55	A	ahs.dadeschools.net
168.221.53.55	A	american.dade.k12.fl.us
168.221.53.58	A	cghs.dade.k12.fl.us
168.221.53.67	A	crhs.dadeschools.net
168.221.53.100	A+PTR	disasterrecovery.dadeschools.net
168.221.53.100	A+PTR	plascoweb.dadeschools.net
168.221.53.100	A	parentportal.dadeschools.net
168.221.53.145	A	arvida.dade.k12.fl.us
168.221.53.176	A	lcms.dadeschools.net
168.221.53.206	A	mediaserver.dadeschools.net
168.221.54.12	A+PTR	deals.dadeschools.net
168.221.54.12	A+PTR	miamidade.dadeschools.net
168.221.54.12	A+PTR	police.dadeschools.net
168.221.54.13	PTR	marketplace.dadeschools.net
168.221.54.46	A	odyssey.dadeschools.net
168.221.54.77	A	k12portals.com
168.221.54.110	A	tucker.dade.k12.fl.us
168.221.54.158	A+PTR	coralreef.dadeschools.net
168.221.54.239	A	passwordreset.dadeschools.net
168.221.54.249	A+PTR	forms.dadeschools.net
168.221.55.2	A	reagandoral.dadeschools.net
168.221.56.46	A	mdcpsfedserv.dadeschools.net