Robtex

Up: 72.240.22.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 72.240.23.0/25
Down right: 72.240.23.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.240.23.2	A	cblmdm72-240-23-2.buckeyecom.net
72.240.23.3	A+PTR	cblmdm72-240-23-3.buckeyecom.net
72.240.23.4	A+PTR	cblmdm72-240-23-4.buckeyecom.net
72.240.23.5	A+PTR	cblmdm72-240-23-5.buckeyecom.net
72.240.23.9	A+PTR	cblmdm72-240-23-9.buckeyecom.net
72.240.23.10	A+PTR	cblmdm72-240-23-10.buckeyecom.net
72.240.23.10	A	rosarycare.org
72.240.23.11	A+PTR	cblmdm72-240-23-11.buckeyecom.net
72.240.23.14	A	mail.metamorabank.com
72.240.23.18	A	mail.omnimngt.com
72.240.23.18	A	mail.totalrecovery.com
72.240.23.24	A+PTR	cblmdm72-240-23-24.buckeyecom.net
72.240.23.29	A+PTR	cblmdm72-240-23-29.buckeyecom.net
72.240.23.34	A+PTR	cblmdm72-240-23-34.buckeyecom.net
72.240.23.38	A+PTR	cblmdm72-240-23-38.buckeyecom.net
72.240.23.39	A+PTR	cblmdm72-240-23-39.buckeyecom.net
72.240.23.40	A+PTR	cblmdm72-240-23-40.buckeyecom.net
72.240.23.42	PTR	cblmdm72-240-23-42.buckeyecom.net
72.240.23.42	A	mail.davidfriedes.com
72.240.23.44	A+PTR	cblmdm72-240-23-44.buckeyecom.net
72.240.23.45	PTR	cblmdm72-240-23-45.buckeyecom.net
72.240.23.45	A	lucascountybaggers.com
72.240.23.45	A	mail.litten12.com
72.240.23.47	A+PTR	cblmdm72-240-23-47.buckeyecom.net
72.240.23.56	A+PTR	cblmdm72-240-23-56.buckeyecom.net
72.240.23.60	A+PTR	cblmdm72-240-23-60.buckeyecom.net
72.240.23.62	A	mail.wholehan.com
72.240.23.74	A+PTR	cblmdm72-240-23-74.buckeyecom.net
72.240.23.76	A	mail.sylvaniaseniorcenter.org
72.240.23.79	A+PTR	cblmdm72-240-23-79.buckeyecom.net
72.240.23.80	A+PTR	cblmdm72-240-23-80.buckeyecom.net
72.240.23.83	A	cblmdm72-240-23-83.buckeyecom.net
72.240.23.84	A+PTR	cblmdm72-240-23-84.buckeyecom.net
72.240.23.89	A+PTR	cblmdm72-240-23-89.buckeyecom.net
72.240.23.90	A+PTR	cblmdm72-240-23-90.buckeyecom.net
72.240.23.92	A+PTR	cblmdm72-240-23-92.buckeyecom.net
72.240.23.94	A+PTR	cblmdm72-240-23-94.buckeyecom.net
72.240.23.97	A+PTR	cblmdm72-240-23-97.buckeyecom.net
72.240.23.101	A+PTR	cblmdm72-240-23-101.buckeyecom.net
72.240.23.102	A+PTR	cblmdm72-240-23-102.buckeyecom.net
72.240.23.108	A+PTR	cblmdm72-240-23-108.buckeyecom.net
72.240.23.117	A+PTR	cblmdm72-240-23-117.buckeyecom.net
72.240.23.119	A+PTR	cblmdm72-240-23-119.buckeyecom.net
72.240.23.123	A+PTR	cblmdm72-240-23-123.buckeyecom.net
72.240.23.140	A+PTR	cblmdm72-240-23-140.buckeyecom.net
72.240.23.146	A+PTR	cblmdm72-240-23-146.buckeyecom.net
72.240.23.152	A+PTR	cblmdm72-240-23-152.buckeyecom.net
72.240.23.156	A+PTR	cblmdm72-240-23-156.buckeyecom.net
72.240.23.157	A+PTR	cblmdm72-240-23-157.buckeyecom.net
72.240.23.159	A+PTR	cblmdm72-240-23-159.buckeyecom.net
72.240.23.160	A+PTR	cblmdm72-240-23-160.buckeyecom.net
72.240.23.161	A+PTR	cblmdm72-240-23-161.buckeyecom.net
72.240.23.164	A+PTR	cblmdm72-240-23-164.buckeyecom.net
72.240.23.165	A+PTR	cblmdm72-240-23-165.buckeyecom.net
72.240.23.170	A+PTR	cblmdm72-240-23-170.buckeyecom.net
72.240.23.171	A+PTR	cblmdm72-240-23-171.buckeyecom.net
72.240.23.172	A+PTR	cblmdm72-240-23-172.buckeyecom.net
72.240.23.176	A+PTR	cblmdm72-240-23-176.buckeyecom.net
72.240.23.178	A+PTR	cblmdm72-240-23-178.buckeyecom.net
72.240.23.183	A+PTR	cblmdm72-240-23-183.buckeyecom.net
72.240.23.191	A+PTR	cblmdm72-240-23-191.buckeyecom.net
72.240.23.196	A	cblmdm72-240-23-196.buckeyecom.net
72.240.23.198	A+PTR	cblmdm72-240-23-198.buckeyecom.net
72.240.23.202	A+PTR	cblmdm72-240-23-202.buckeyecom.net
72.240.23.204	A+PTR	cblmdm72-240-23-204.buckeyecom.net
72.240.23.207	A+PTR	cblmdm72-240-23-207.buckeyecom.net
72.240.23.209	A	cblmdm72-240-23-209.buckeyecom.net
72.240.23.210	A+PTR	cblmdm72-240-23-210.buckeyecom.net
72.240.23.213	A+PTR	cblmdm72-240-23-213.buckeyecom.net
72.240.23.222	A+PTR	cblmdm72-240-23-222.buckeyecom.net
72.240.23.223	A+PTR	cblmdm72-240-23-223.buckeyecom.net
72.240.23.230	A+PTR	cblmdm72-240-23-230.buckeyecom.net
72.240.23.233	A+PTR	cblmdm72-240-23-233.buckeyecom.net
72.240.23.238	A+PTR	cblmdm72-240-23-238.buckeyecom.net
72.240.23.244	A+PTR	cblmdm72-240-23-244.buckeyecom.net
72.240.23.251	A+PTR	cblmdm72-240-23-251.buckeyecom.net