Robtex

Up: 216.158.28.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 216.158.30.0/24
Down right: 216.158.31.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.158.30.30	A+PTR	webserver.ursuline.org
216.158.30.30	A	www.ursuline.org
216.158.30.30	A	ursuline.org
216.158.30.53	A	core-1-s0-0-0-22.hq.dca.net
216.158.30.122	PTR	dcanet-gw.saferthansalticemelt.com
216.158.30.134	PTR	upenn-museum-eoc-gw.dca.net
216.158.30.134	A	mail.windsorst.net
216.158.30.134	A	windsorst.net
216.158.30.145	A	node-52-s1.oldcity.dca.net
216.158.30.186	PTR	interjet.delawaretheatre.org
216.158.30.209	PTR	node-9-1-4-6.oldcity.dca.net
216.158.30.234	A	samba.ccwilm.org
216.158.30.242	PTR	jupiter.loonybin.net
216.158.30.242	A	mail.loonybin.net
216.158.30.242	A	ns1.aryltech.com
216.158.31.69	A	mail.cardiocppa.com
216.158.31.124	PTR	dirtybill.solutionsforprogress.com
216.158.31.125	A	phl-db-1.thebenefitbank.com
216.158.31.210	A	motion.dca.net