Robtex

Up: 72.237.28.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 72.237.30.0/24
Down right: 72.237.31.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.237.30.33	A+PTR	cf4.navpoint.com
72.237.30.33	A	bishop-associates.net
72.237.30.33	A	oncophil.com
72.237.30.48	PTR	brenmin.navpoint.com
72.237.30.48	A	mealways.com
72.237.30.48	A	jdbservicegroup.com
72.237.30.49	PTR	sftp-wh0.navpoint.com
72.237.30.49	A	www.mabga.org
72.237.30.49	A	lmsinteriors.com
72.237.30.50	PTR	secure.janbara.com
72.237.30.50	A	navcloud9.com
72.237.30.50	A	navcloudnine.com
72.237.30.52	PTR	www2.patouche.com
72.237.30.52	A	www.patouche.com
72.237.30.52	A	patouche.com
72.237.30.67	PTR	www.navpoint.com
72.237.30.67	A	navpointhosting.com
72.237.30.67	A	navpoint.net
72.237.30.69	PTR	purple.navpoint.com
72.237.30.69	A	oncophil.com
72.237.30.69	A	radnortrading.com
72.237.30.86	A+PTR	brenmin.navpoint.com
72.237.30.195	A	red.navpoint.com
72.237.30.215	A+PTR	white.navpoint.com
72.237.30.215	A	mealways.com
72.237.30.215	A	manygatestotheheart.org
72.237.30.233	A	mx1.norsleet.com
72.237.30.234	A	mx2.norsleet.com
72.237.31.98	A+PTR	ship-gss1.members1st.org
72.237.31.110	A	www.members1st.org
72.237.31.114	A	mailexchange2.m1stinsurance.org
72.237.31.114	A	mail2.members1st.org
72.237.31.131	PTR	smtp.pco.edu
72.237.31.131	PTR	smtp.salus.edu
72.237.31.133	PTR	mail.pco.edu
72.237.31.133	PTR	smtp2.pco.edu
72.237.31.133	PTR	webmail.pco.edu
72.237.31.141	A	smtp.salus.edu
72.237.31.146	A+PTR	fs.salus.edu
72.237.31.195	A+PTR	peifw.pentamation.com
72.237.31.198	A	mpo.pentamation.com
72.237.31.199	A	mpo2.pentamation.com
72.237.31.227	A	slink.sungardk12.com
72.237.31.230	A	peifw.sungardk12.com