Robtex

Up: 67.53.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 67.53.20.0/23
Down right: 67.53.22.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
67.53.20.12	A+PTR	rrcs-67-53-20-12.west.biz.rr.com
67.53.20.15	A+PTR	rrcs-67-53-20-15.west.biz.rr.com
67.53.20.32	A+PTR	rrcs-67-53-20-32.west.biz.rr.com
67.53.20.34	A+PTR	rrcs-67-53-20-34.west.biz.rr.com
67.53.20.47	A+PTR	rrcs-67-53-20-47.west.biz.rr.com
67.53.20.53	A+PTR	rrcs-67-53-20-53.west.biz.rr.com
67.53.20.56	A+PTR	rrcs-67-53-20-56.west.biz.rr.com
67.53.20.57	A+PTR	rrcs-67-53-20-57.west.biz.rr.com
67.53.20.62	A+PTR	rrcs-67-53-20-62.west.biz.rr.com
67.53.20.83	A+PTR	rrcs-67-53-20-83.west.biz.rr.com
67.53.20.91	A+PTR	rrcs-67-53-20-91.west.biz.rr.com
67.53.20.95	A+PTR	rrcs-67-53-20-95.west.biz.rr.com
67.53.20.101	A+PTR	rrcs-67-53-20-101.west.biz.rr.com
67.53.20.106	A+PTR	rrcs-67-53-20-106.west.biz.rr.com
67.53.20.108	A+PTR	rrcs-67-53-20-108.west.biz.rr.com
67.53.20.120	A+PTR	rrcs-67-53-20-120.west.biz.rr.com
67.53.20.133	A+PTR	rrcs-67-53-20-133.west.biz.rr.com
67.53.20.135	A+PTR	rrcs-67-53-20-135.west.biz.rr.com
67.53.20.140	A+PTR	rrcs-67-53-20-140.west.biz.rr.com
67.53.20.158	A+PTR	rrcs-67-53-20-158.west.biz.rr.com
67.53.20.166	A+PTR	rrcs-67-53-20-166.west.biz.rr.com
67.53.20.168	A+PTR	rrcs-67-53-20-168.west.biz.rr.com
67.53.20.173	A+PTR	rrcs-67-53-20-173.west.biz.rr.com
67.53.20.175	PTR	rrcs-67-53-20-175.west.biz.rr.com
67.53.20.176	A+PTR	rrcs-67-53-20-176.west.biz.rr.com
67.53.20.186	A+PTR	rrcs-67-53-20-186.west.biz.rr.com
67.53.20.203	A+PTR	rrcs-67-53-20-203.west.biz.rr.com
67.53.20.205	A+PTR	rrcs-67-53-20-205.west.biz.rr.com
67.53.20.211	A	rrcs-67-53-20-211.west.biz.rr.com
67.53.20.212	A+PTR	rrcs-67-53-20-212.west.biz.rr.com
67.53.20.227	A+PTR	rrcs-67-53-20-227.west.biz.rr.com
67.53.20.229	A+PTR	rrcs-67-53-20-229.west.biz.rr.com
67.53.20.237	PTR	rrcs-67-53-20-237.west.biz.rr.com
67.53.20.241	A+PTR	rrcs-67-53-20-241.west.biz.rr.com
67.53.20.243	A+PTR	rrcs-67-53-20-243.west.biz.rr.com
67.53.20.246	A+PTR	rrcs-67-53-20-246.west.biz.rr.com
67.53.20.251	A+PTR	rrcs-67-53-20-251.west.biz.rr.com
67.53.20.252	A+PTR	rrcs-67-53-20-252.west.biz.rr.com
67.53.20.254	A+PTR	rrcs-67-53-20-254.west.biz.rr.com
67.53.21.10	PTR	rrcs-67-53-21-10.west.biz.rr.com
67.53.21.10	A	exchange.kyumh.com
67.53.21.10	A	kyumh1.kyumh.com
67.53.21.78	PTR	rrcs-67-53-21-78.west.biz.rr.com
67.53.21.78	A	tsox.com
67.53.21.82	A	mail.gdilllaw.com
67.53.21.142	A	webmail.mendedreeds.org
67.53.21.142	A	ns1.mendedreeds.org
67.53.21.254	A	jdwzone.com
67.53.22.0	A+PTR	rrcs-67-53-22-0.west.biz.rr.com
67.53.22.10	PTR	asldky08-iad001.west.biz.rr.com
67.53.22.21	A+PTR	rrcs-67-53-22-21.west.biz.rr.com
67.53.22.27	A+PTR	rrcs-67-53-22-27.west.biz.rr.com
67.53.22.29	PTR	rrcs-67-53-22-29.west.biz.rr.com
67.53.22.43	A+PTR	rrcs-67-53-22-43.west.biz.rr.com
67.53.22.44	PTR	rrcs-67-53-22-44.west.biz.rr.com
67.53.22.46	A+PTR	rrcs-67-53-22-46.west.biz.rr.com
67.53.22.51	A+PTR	rrcs-67-53-22-51.west.biz.rr.com
67.53.22.61	A+PTR	rrcs-67-53-22-61.west.biz.rr.com
67.53.22.65	A+PTR	rrcs-67-53-22-65.west.biz.rr.com
67.53.22.66	A+PTR	rrcs-67-53-22-66.west.biz.rr.com
67.53.22.71	A+PTR	rrcs-67-53-22-71.west.biz.rr.com
67.53.22.77	A+PTR	rrcs-67-53-22-77.west.biz.rr.com
67.53.22.87	A+PTR	rrcs-67-53-22-87.west.biz.rr.com
67.53.22.89	A+PTR	rrcs-67-53-22-89.west.biz.rr.com
67.53.22.95	A+PTR	rrcs-67-53-22-95.west.biz.rr.com
67.53.22.103	A+PTR	rrcs-67-53-22-103.west.biz.rr.com
67.53.22.107	A+PTR	rrcs-67-53-22-107.west.biz.rr.com
67.53.22.118	A+PTR	rrcs-67-53-22-118.west.biz.rr.com
67.53.22.122	PTR	rrcs-67-53-22-122.west.biz.rr.com
67.53.22.124	A+PTR	rrcs-67-53-22-124.west.biz.rr.com
67.53.22.135	A+PTR	rrcs-67-53-22-135.west.biz.rr.com
67.53.22.142	A+PTR	rrcs-67-53-22-142.west.biz.rr.com
67.53.22.148	A+PTR	rrcs-67-53-22-148.west.biz.rr.com
67.53.22.153	A+PTR	rrcs-67-53-22-153.west.biz.rr.com
67.53.22.154	A+PTR	rrcs-67-53-22-154.west.biz.rr.com
67.53.22.158	A+PTR	rrcs-67-53-22-158.west.biz.rr.com
67.53.22.159	A+PTR	rrcs-67-53-22-159.west.biz.rr.com
67.53.22.160	A+PTR	rrcs-67-53-22-160.west.biz.rr.com
67.53.22.161	A+PTR	rrcs-67-53-22-161.west.biz.rr.com
67.53.22.167	A+PTR	rrcs-67-53-22-167.west.biz.rr.com
67.53.22.172	A+PTR	rrcs-67-53-22-172.west.biz.rr.com
67.53.22.174	A+PTR	rrcs-67-53-22-174.west.biz.rr.com
67.53.22.179	A+PTR	rrcs-67-53-22-179.west.biz.rr.com
67.53.22.186	A+PTR	rrcs-67-53-22-186.west.biz.rr.com
67.53.22.197	A+PTR	rrcs-67-53-22-197.west.biz.rr.com
67.53.22.203	A+PTR	rrcs-67-53-22-203.west.biz.rr.com
67.53.22.224	A+PTR	rrcs-67-53-22-224.west.biz.rr.com
67.53.22.237	A+PTR	rrcs-67-53-22-237.west.biz.rr.com
67.53.22.239	A+PTR	rrcs-67-53-22-239.west.biz.rr.com
67.53.22.245	A+PTR	rrcs-67-53-22-245.west.biz.rr.com
67.53.22.247	A+PTR	rrcs-67-53-22-247.west.biz.rr.com
67.53.22.248	A+PTR	rrcs-67-53-22-248.west.biz.rr.com
67.53.22.249	A+PTR	rrcs-67-53-22-249.west.biz.rr.com
67.53.22.251	A+PTR	rrcs-67-53-22-251.west.biz.rr.com
67.53.22.252	A+PTR	rrcs-67-53-22-252.west.biz.rr.com
67.53.23.22	A+PTR	rrcs-67-53-23-22.west.biz.rr.com
67.53.23.82	A	mail.cuyahogast.com
67.53.23.90	A	remote.ltntechnologies.com
67.53.23.164	PTR	rrcs-67-53-23-164.west.biz.rr.com
67.53.23.164	A	kelleygalloway.net
67.53.23.210	A	davis-familydentistry.com
67.53.23.210	A	custom-builtpcs.com
67.53.23.210	A	tynrhosfarm.com
67.53.23.213	PTR	rrcs-67-53-23-213.west.biz.rr.com
67.53.23.213	A	nekboa.com