Robtex

Up: 128.42.160.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 128.42.168.0/22
Down right: 128.42.172.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
128.42.169.3	A+PTR	jenkins.cnx.org
128.42.169.4	A+PTR	bokken.cnx.rice.edu
128.42.169.4	A	bunker.cnx.rice.edu
128.42.169.7	A	wakizashi.cnx.rice.edu
128.42.169.8	A+PTR	graylog.cnx.org
128.42.169.9	A+PTR	steppe.cnx.rice.edu
128.42.169.9	A	www.cnx.org
128.42.169.9	A	openstaxcnx.org
128.42.169.11	PTR	claymore.cnx.rice.edu
128.42.169.20	A	cleaver.cnx.rice.edu
128.42.169.24	PTR	boning.cnx.rice.edu
128.42.169.24	A	trac.rhaptos.org
128.42.169.27	PTR	cnx.org
128.42.169.27	A	archive.cnx.org
128.42.169.27	A	staging2.cnx.org
128.42.169.33	PTR	legacy-staging5.cnx.org
128.42.169.33	A	staging5.cnx.org
128.42.169.34	A+PTR	bowie.cnx.rice.edu
128.42.169.34	A	openstaxcnx.org
128.42.169.56	A+PTR	prod05.cnx.org
128.42.169.56	A	nuberhaus.com
128.42.169.155	A+PTR	senova.rice.edu
128.42.169.160	A+PTR	davos.rice.edu
128.42.169.163	A+PTR	huntsville.rice.edu
128.42.169.169	A+PTR	newseattle.rice.edu
128.42.169.173	A+PTR	seville.rice.edu
128.42.169.187	A+PTR	corsica.rice.edu
128.42.169.190	A	hamburg.rice.edu
128.42.169.201	PTR	esther.rice.edu
128.42.169.203	A+PTR	athens.rice.edu
128.42.169.211	A+PTR	sanmarcos.rice.edu
128.42.169.215	A	seoul.rice.edu
128.42.169.222	A	edgar-ir.rice.edu
128.42.169.225	A+PTR	villarreal.rice.edu
128.42.173.16	A+PTR	bioc-login.rice.edu
128.42.173.16	A	bioc.rice.edu
128.42.173.61	A+PTR	math.rice.edu
128.42.173.64	A	seclabvm.rice.edu
128.42.173.64	A	accurate-voting.org
128.42.173.64	A	trackback.cs.rice.edu
128.42.173.103	A	ams.rice.edu
128.42.173.103	A	ams2.rice.edu
128.42.174.6	A	fonlibweb.rice.edu