Robtex

Up: 168.213.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 168.213.0.0/18
Down right: 168.213.64.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
168.213.1.18	PTR	video.pinellas.k12.fl.us
168.213.1.19	A+PTR	learn360flash.pcsb.org
168.213.1.19	A+PTR	learn360ftp.pcsb.org
168.213.1.19	A	video2.pcsb.org
168.213.1.161	A	parents.pcsb.org
168.213.2.2	A+PTR	largo-hs.pcsb.org
168.213.2.2	PTR	www.largo-hs.pcsb.org
168.213.2.2	PTR	largo-hs.pinellas.k12.fl.us
168.213.2.3	A	clearwater-hs.pinellas.k12.fl.us
168.213.2.55	A	www.21clc.pcsb.org
168.213.2.55	A	www.21clc.pinellas.k12.fl.us
168.213.3.2	PTR	portal.pcsb.org
168.213.3.5	A+PTR	bus.pcsb.org
168.213.3.5	PTR	vendorapp.pcsb.org
168.213.3.5	A+PTR	web.pcsb.org
168.213.3.175	A	moodlelms.pcsb.org
168.213.3.176	PTR	moodle.pcsb.org
168.213.3.176	A+PTR	students.pcsb.org
168.213.3.176	A	moodle52.pcsb.org
168.213.3.177	A+PTR	forum.pcsb.org
168.213.4.4	A+PTR	reservation.pcsb.org
168.213.4.5	A+PTR	focus.pcsb.org
168.213.4.6	A+PTR	ess.pcsb.org
168.213.9.118	A+PTR	cat.pcsb.org
168.213.9.118	A+PTR	mail.cat.pcsb.org
168.213.9.118	A+PTR	webmail.cat.pcsb.org
168.213.51.62	A	imap.pcsb.org
168.213.51.62	A	mail.pinellas.k12.fl.us
168.213.51.62	A	imap.pinellas.k12.fl.us
168.213.51.70	A	mail.pinellas.k12.fl.us
168.213.51.80	A+PTR	autodiscover.pcsb.org
168.213.51.80	PTR	mail.pcsb.org
168.213.51.80	A+PTR	mail.pinellas.k12.fl.us
168.213.51.86	PTR	saw.pcsb.org
168.213.51.198	A	techhelp2.pcsb.org
168.213.64.90	A	pinellas.pinellas.k12.fl.us
168.213.64.92	A	ldaps.pcsb.org
168.213.64.117	A	pcstechplan.pcsb.org
168.213.64.117	A	techplan.pcsb.org
168.213.64.152	A	harassment.pcsb.org
168.213.64.152	A	archive.pcsb.org
168.213.64.152	A	thinkcentral.pcsb.org
168.213.77.135	A+PTR	caec.pinellas.k12.fl.us
168.213.114.134	A	belcher-es.pinellas.k12.fl.us