Robtex

Up: 72.11.152.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 72.11.156.0/23
Down right: 72.11.158.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.11.156.12	A	trendshadow.com
72.11.156.26	PTR	unassigned.quadranet.com
72.11.156.63	PTR	usla-072-011-156-063.dsl6.net
72.11.156.64	PTR	usla-072-011-156-064.dsl6.net
72.11.156.65	PTR	usla-072-011-156-065.dsl6.net
72.11.156.65	A	ns1.darksimply.com
72.11.156.137	PTR	72.11.156.137.static.stormvz.com
72.11.156.137	A	joebajin.com
72.11.156.169	PTR	unassigned.quadranet.com
72.11.156.174	A	server9.astang.com
72.11.157.7	PTR	72.11.157.7.quadranet.com
72.11.157.7	A	ns2.xyzkqw.com
72.11.157.7	A	mail.deltawheelsandaccessories.com
72.11.157.9	A	ns1.leuchtartikelscout-24.com
72.11.157.9	A	ns2.leuchtartikelscout-24.com
72.11.157.9	A	ns1.lakesebringflorida.com
72.11.157.11	PTR	72.11.157.11.quadranet.com
72.11.157.28	A	g0i.net
72.11.157.28	A	ns1.g0i.net
72.11.157.28	A	www.g0i.net
72.11.157.51	PTR	72.11.157.51.static.quadranet.com
72.11.157.81	PTR	72.11.157.81.static.quadranet.com
72.11.157.138	PTR	www.bluehips.com
72.11.158.7	A	ns2.postnatyam.org
72.11.158.7	A	jgydrtuhjrcgdfh.com
72.11.158.7	A	mail.personalisedhoodies.net
72.11.158.8	PTR	72.11.158.8.quadranet.com
72.11.158.8	A	ns2.beingeschwuere.com
72.11.158.8	A	ns2.fenetre-78.com
72.11.158.9	PTR	72.11.158.9.quadranet.com
72.11.158.11	PTR	72.11.158.11.quadranet.com
72.11.158.28	A	g0j.net
72.11.158.28	A	ns1.g0j.net
72.11.158.28	A	mail.g0j.net
72.11.158.29	A	mail.leaping.us
72.11.158.83	A	www.ulahula.com
72.11.158.105	PTR	72.11.158.105.travelformula1.com.158.11.72.in-addr.arpa
72.11.158.110	PTR	72.11.158.110.static.quadranet.com
72.11.158.147	PTR	72.11.158.147.static.quadranet.com
72.11.158.228	PTR	72.11.158.228.quadranet.com
72.11.158.236	PTR	72.11.158.236.quadranet.com
72.11.159.7	PTR	72.11.159.7.quadranet.com
72.11.159.7	A	ns2.tabstract.com
72.11.159.7	A	ns2.luxurycustomhomedesignsandiego.com
72.11.159.8	A	laloidelasavane.com
72.11.159.8	A	ns2.bw1188.com
72.11.159.8	A	ns2.usingdhcp.com
72.11.159.9	PTR	72.11.159.9.static.quadranet.com
72.11.159.10	PTR	72.11.159.10.quadranet.com
72.11.159.11	PTR	72.11.159.11.quadranet.com
72.11.159.28	PTR	72.11.159.28.gotwebhost.com
72.11.159.28	A	mail.g0r.net
72.11.159.28	A	g0r.net
72.11.159.29	PTR	72.11.159.29.gotwebhost.com
72.11.159.29	A	ns2.g0r.net
72.11.159.30	PTR	72.11.159.30.gotwebhost.com
72.11.159.34	A	25wmainst.com
72.11.159.34	A	mail.gotbuddy.com
72.11.159.95	PTR	72.11.159.95.quadranet.com
72.11.159.127	PTR	72.11.159.127.quadranet.com
72.11.159.154	A	getgoodatdating.com
72.11.159.154	A	mail.getgoodatdating.com
72.11.159.170	A	dns2.nudedns.com
72.11.159.255	PTR	72.11.159.255.static.quadranet.com