Robtex

Up: 208.69.32.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 208.69.36.0/23
Down right: 208.69.38.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.69.36.1	A+PTR	rtr1.chi.opendns.com
208.69.36.1	A	po1-p1.rtr1.chi.opendns.com
208.69.36.2	PTR	po1-1.rtr1.chi.opendns.com
208.69.36.7	A	pdu1.chi.opendns.com
208.69.36.8	A+PTR	span-ipmi.chi.opendns.com
208.69.36.9	A+PTR	span.chi.opendns.com
208.69.36.11	A+PTR	m1.chi.opendns.com
208.69.36.12	A+PTR	m2.chi.opendns.com
208.69.36.13	A+PTR	m3.chi.opendns.com
208.69.36.15	A+PTR	m5.chi.opendns.com
208.69.36.17	A+PTR	m7.chi.opendns.com
208.69.36.19	A+PTR	m9.chi.opendns.com
208.69.36.21	A+PTR	m11.chi.opendns.com
208.69.36.24	A+PTR	m14.chi.opendns.com
208.69.36.25	PTR	m15.chi.opendns.com
208.69.36.29	A+PTR	m19.chi.opendns.com
208.69.36.30	A+PTR	m20.chi.opendns.com
208.69.36.66	A+PTR	m25.chi.opendns.com
208.69.36.67	A+PTR	m29.chi.opendns.com
208.69.36.68	A+PTR	m33.chi.opendns.com
208.69.36.69	A+PTR	m37.chi.opendns.com
208.69.36.70	A+PTR	m41.chi.opendns.com
208.69.36.71	A+PTR	m45.chi.opendns.com
208.69.36.72	A+PTR	m49.chi.opendns.com
208.69.36.73	A+PTR	m53.chi.opendns.com
208.69.36.74	A+PTR	m57.chi.opendns.com
208.69.36.75	A+PTR	m61.chi.opendns.com
208.69.36.130	PTR	hit-adult.opendns.com
208.69.36.131	PTR	hit-block.opendns.com
208.69.36.131	A+PTR	m28-ipmi.chi.opendns.com
208.69.36.132	PTR	hit-nxdomain.opendns.com
208.69.36.132	PTR	m29-ipmi.chi.opendns.com
208.69.36.132	A	ns2.cptt.org
208.69.36.133	PTR	hit-phish.opendns.com
208.69.36.133	PTR	m30-ipmi.chi.opendns.com
208.69.36.134	PTR	hit-servfail.opendns.com
208.69.36.134	PTR	m31-ipmi.chi.opendns.com
208.69.36.135	PTR	block.opendns.com
208.69.36.135	PTR	m32-ipmi.chi.opendns.com
208.69.36.136	PTR	guide.opendns.com
208.69.36.137	PTR	phish.opendns.com
208.69.36.137	A+PTR	m34-ipmi.chi.opendns.com
208.69.36.138	PTR	block.opendns.com
208.69.36.139	PTR	guide.opendns.com
208.69.36.139	A+PTR	m36-ipmi.chi.opendns.com
208.69.36.140	PTR	phish.opendns.com
208.69.36.140	A	m37-ipmi.chi.opendns.com
208.69.36.142	PTR	www-files.opendns.com
208.69.36.142	A+PTR	m39-ipmi.chi.opendns.com
208.69.36.143	PTR	hit-bpb.opendns.com
208.69.36.144	PTR	bpb.opendns.com
208.69.36.144	A	m41-ipmi.chi.opendns.com
208.69.36.145	PTR	hit-nxdomain.dlinksearch.com
208.69.36.149	PTR	hit-malware.opendns.com
208.69.36.149	A+PTR	m46-ipmi.chi.opendns.com
208.69.36.150	PTR	malware.opendns.com
208.69.36.150	A+PTR	m47-ipmi.chi.opendns.com
208.69.37.11	A+PTR	m1.nrt.opendns.com
208.69.37.15	PTR	m5.nrt.opendns.com
208.69.37.17	A+PTR	m7.nrt.opendns.com
208.69.37.19	A+PTR	m9.nrt.opendns.com
208.69.37.21	A+PTR	m11.nrt.opendns.com
208.69.37.64	A+PTR	m17.nrt.opendns.com
208.69.37.65	A+PTR	m21.nrt.opendns.com
208.69.37.66	A+PTR	m25.nrt.opendns.com
208.69.37.67	A+PTR	m29.nrt.opendns.com
208.69.37.68	A+PTR	m33.nrt.opendns.com
208.69.37.69	A+PTR	m37.nrt.opendns.com
208.69.37.70	A+PTR	m41.nrt.opendns.com
208.69.37.143	PTR	hit-bpb.opendns.com
208.69.37.157	A	block.proxy.umbrella.opendns.com
208.69.37.157	A	phish.opendns.com
208.69.37.157	A	malware.proxy.umbrella.opendns.com
208.69.38.137	A+PTR	m19.pao.opendns.com
208.69.38.170	A	system.opendns.com
208.69.38.205	A+PTR	use.opendns.com
208.69.39.2	A+PTR	auth3.opendns.com
208.69.39.2	A	auth1.opendns.com