Robtex

Up: 67.52.32.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 67.52.36.0/23
Down right: 67.52.38.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
67.52.36.5	A+PTR	rrcs-67-52-36-5.west.biz.rr.com
67.52.36.5	A	ns1.ewaldauto.com
67.52.36.6	PTR	rrcs-67-52-36-6.west.biz.rr.com
67.52.36.8	PTR	rrcs-67-52-36-8.west.biz.rr.com
67.52.36.8	A	ewaldfordlincoln.com
67.52.36.8	A	ewaldram.com
67.52.36.10	PTR	rrcs-67-52-36-10.west.biz.rr.com
67.52.36.11	PTR	mail.ewaldauto.com
67.52.36.131	PTR	mail.irisusainc.com
67.52.36.186	PTR	rrcs-67-52-36-186.west.biz.rr.com
67.52.36.186	A	mail.milwaukeeradio.com
67.52.36.250	A	www.corgiat.com
67.52.36.250	A	corgiat.com
67.52.36.250	A	mail.corgiat.com
67.52.37.18	A+PTR	rrcs-67-52-37-18.west.biz.rr.com
67.52.37.98	A+PTR	rrcs-67-52-37-98.west.biz.rr.com
67.52.37.104	A	spam.basis911.com
67.52.37.116	A+PTR	rrcs-67-52-37-116.west.biz.rr.com
67.52.37.148	A+PTR	rrcs-67-52-37-148.west.biz.rr.com
67.52.37.149	A+PTR	rrcs-67-52-37-149.west.biz.rr.com
67.52.38.18	A	dev.onmilwaukee.com
67.52.38.84	PTR	rrcs-67-52-38-84.west.biz.rr.com
67.52.38.84	A	tir.es
67.52.38.98	A	mail.et-alia.net
67.52.38.99	A	et-alia.net
67.52.38.110	A	crewbridge.com
67.52.38.135	PTR	rrcs-67-52-38-135.west.biz.rr.com
67.52.38.136	A+PTR	rrcs-67-52-38-136.west.biz.rr.com
67.52.38.158	A	mail.caselawfirm.com
67.52.38.158	A	exchange.caselawfirm.com
67.52.38.197	A	mail.milwaukeedowntown.com
67.52.38.203	A+PTR	rrcs-67-52-38-203.west.biz.rr.com
67.52.38.203	A	mail.eastcastleplace.com
67.52.38.204	A+PTR	rrcs-67-52-38-204.west.biz.rr.com
67.52.38.204	A	smtp.eastcastleplace.com
67.52.38.210	A	telotek.com
67.52.38.210	A	mail.telotek.com
67.52.38.218	A+PTR	rrcs-67-52-38-218.west.biz.rr.com
67.52.38.218	A	ns2.bellfuels.com
67.52.38.227	PTR	rrcs-67-52-38-227.west.biz.rr.com
67.52.38.227	A	mail.boysgirlsclubs.org
67.52.38.229	PTR	boysgirlsclubs.org
67.52.39.2	A	mail.wrightwms.com
67.52.39.18	A+PTR	mail.catalystbuilds.com
67.52.39.18	A	mail.innovativestewardship.com
67.52.39.44	A+PTR	rrcs-67-52-39-44.west.biz.rr.com
67.52.39.76	A+PTR	rrcs-67-52-39-76.west.biz.rr.com
67.52.39.91	A	mail.etkg.com
67.52.39.94	A	developkarma.com
67.52.39.166	PTR	rrcs-67-52-39-166.west.biz.rr.com
67.52.39.185	A+PTR	rrcs-67-52-39-185.west.biz.rr.com
67.52.39.247	A+PTR	rrcs-67-52-39-247.west.biz.rr.com