Robtex

Up: 24.31.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 24.31.16.0/21
Down right: 24.31.24.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
24.31.16.36	A	cluebat.net
24.31.18.0	PTR	static-host-24-31-18-0.nctv.com
24.31.18.24	A	mail.mckeand.biz
24.31.18.24	A	sbs2k8.mckeand.biz
24.31.18.66	PTR	static-host-24-31-18-66.nctv.com
24.31.18.96	PTR	static-host-24-31-18-96.nctv.com
24.31.18.145	PTR	static-host-24-31-18-145.nctv.com
24.31.18.147	A	mail.fbcgroesbeck.com
24.31.18.163	PTR	static-host-24-31-18-163.nctv.com
24.31.18.177	PTR	static-host-24-31-18-177.nctv.com
24.31.18.227	PTR	static-host-24-31-18-227.nctv.com
24.31.19.10	PTR	static-host-24-31-19-10.nctv.com
24.31.19.20	PTR	static-host-24-31-19-20.nctv.com
24.31.19.129	PTR	static-host-24-31-19-129.nctv.com
24.31.19.151	PTR	static-host-24-31-19-151.nctv.com
24.31.19.168	PTR	static-host-24-31-19-168.nctv.com
24.31.19.168	A	mail.mckeand.biz
24.31.19.168	A	dragonfly-wisp.net
24.31.20.4	A	ns-2.syndetictech.net
24.31.20.4	A	ns2.syndetictech.net
24.31.20.4	A	cofers.net
24.31.20.16	PTR	static-host-24-31-20-16.nctv.com
24.31.20.89	A	uptowndata.com
24.31.20.89	A	dosser.us
24.31.20.157	A	odeen.net
24.31.20.225	PTR	static-host-24-31-20-225.nctv.com
24.31.20.233	A	vconnect.net
24.31.22.93	PTR	static-host-24-31-22-93.nctv.com
24.31.23.165	PTR	static-host-24-31-23-165.nctv.com
24.31.24.231	PTR	static-host-24-31-24-231.nctv.com
24.31.24.231	A	smithauto.us
24.31.25.0	PTR	static-host-24-31-25-0.nctv.com
24.31.26.0	PTR	static-host-24-31-26-0.nctv.com
24.31.26.140	A	mail.mstconcreteinc.com
24.31.27.130	PTR	static-host-24-31-27-130.nctv.com
24.31.28.0	PTR	static-host-24-31-28-0.nctv.com
24.31.28.64	PTR	static-host-24-31-28-64.nctv.com
24.31.28.64	A	tombofhorrors.net
24.31.28.64	A	tombofhorror.org
24.31.29.100	A	1-t.org
24.31.29.100	A	wcwfarms.com
24.31.31.224	PTR	static-host-24-31-31-224.nctv.com
24.31.31.224	A	frosthound.com