Robtex

Up: 204.210.224.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 204.210.240.0/21
Down right: 204.210.248.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.210.240.3	A+PTR	cpe-204-210-240-3.columbus.res.rr.com
204.210.240.51	A	personalspace.net
204.210.240.51	A	owngrenade.net
204.210.240.175	PTR	cpe-204-210-240-175.columbus.res.rr.com
204.210.240.212	A+PTR	cpe-204-210-240-212.columbus.res.rr.com
204.210.240.213	A+PTR	cpe-204-210-240-213.columbus.res.rr.com
204.210.240.239	A+PTR	cpe-204-210-240-239.columbus.res.rr.com
204.210.240.239	A	ebrady.homeunix.org
204.210.241.6	A+PTR	cpe-204-210-241-6.columbus.res.rr.com
204.210.241.107	PTR	cpe-204-210-241-107.columbus.res.rr.com
204.210.242.56	A	mailserver.adconn.com
204.210.242.99	A+PTR	204-210-242-099.res.spectrum.com
204.210.242.99	A	cpe-204-210-242-99.columbus.res.rr.com
204.210.242.137	A+PTR	cpe-204-210-242-137.columbus.res.rr.com
204.210.242.153	A+PTR	cpe-204-210-242-153.columbus.res.rr.com
204.210.242.157	A+PTR	204-210-242-157.res.spectrum.com
204.210.242.157	A	cpe-204-210-242-157.columbus.res.rr.com
204.210.242.160	A	dhscheer.d2g.com
204.210.243.41	A+PTR	cpe-204-210-243-41.columbus.res.rr.com
204.210.243.41	A	mail.ministryofbeer.net
204.210.243.41	A	mail.ubyte.net
204.210.243.68	PTR	204-210-243-068.res.spectrum.com
204.210.243.68	A	cpe-204-210-243-68.columbus.res.rr.com
204.210.243.205	PTR	cpe-204-210-243-205.columbus.res.rr.com
204.210.243.205	A	mail.machine-nation.com
204.210.243.254	A+PTR	cpe-204-210-243-254.columbus.res.rr.com
204.210.244.13	PTR	204-210-244-013.res.spectrum.com
204.210.244.13	A	orangeroomrecords.com
204.210.244.13	A	cpe-204-210-244-13.columbus.res.rr.com
204.210.244.207	A+PTR	cpe-204-210-244-207.columbus.res.rr.com
204.210.245.32	A+PTR	cpe-204-210-245-32.columbus.res.rr.com
204.210.245.40	A	cpe-204-210-245-40.columbus.res.rr.com
204.210.245.64	PTR	204-210-245-064.res.spectrum.com
204.210.245.64	A	cpe-204-210-245-64.columbus.res.rr.com
204.210.245.72	A	cpe-204-210-245-72.columbus.res.rr.com
204.210.245.76	A	cpe-204-210-245-76.columbus.res.rr.com
204.210.245.84	A	cpe-204-210-245-84.columbus.res.rr.com
204.210.245.93	A	cpe-204-210-245-93.columbus.res.rr.com
204.210.245.96	A+PTR	cpe-204-210-245-96.columbus.res.rr.com
204.210.245.98	A+PTR	cpe-204-210-245-98.columbus.res.rr.com
204.210.245.100	A	cpe-204-210-245-100.columbus.res.rr.com
204.210.245.101	A	cpe-204-210-245-101.columbus.res.rr.com
204.210.245.123	A	cpe-204-210-245-123.columbus.res.rr.com
204.210.245.129	A+PTR	cpe-204-210-245-129.columbus.res.rr.com
204.210.245.137	A	cpe-204-210-245-137.columbus.res.rr.com
204.210.245.145	A+PTR	cpe-204-210-245-145.columbus.res.rr.com
204.210.245.155	A	cpe-204-210-245-155.columbus.res.rr.com
204.210.245.156	A	cpe-204-210-245-156.columbus.res.rr.com
204.210.245.166	A	cpe-204-210-245-166.columbus.res.rr.com
204.210.245.170	A	cpe-204-210-245-170.columbus.res.rr.com
204.210.245.171	A	cpe-204-210-245-171.columbus.res.rr.com
204.210.245.189	A	cpe-204-210-245-189.columbus.res.rr.com
204.210.245.201	A	cpe-204-210-245-201.columbus.res.rr.com
204.210.245.202	A	cpe-204-210-245-202.columbus.res.rr.com
204.210.245.214	A	cpe-204-210-245-214.columbus.res.rr.com
204.210.245.225	A+PTR	cpe-204-210-245-225.columbus.res.rr.com
204.210.245.229	A	cpe-204-210-245-229.columbus.res.rr.com
204.210.245.234	A	cpe-204-210-245-234.columbus.res.rr.com
204.210.245.237	A	cpe-204-210-245-237.columbus.res.rr.com
204.210.245.251	A	cpe-204-210-245-251.columbus.res.rr.com
204.210.248.31	PTR	204-210-248-031.res.spectrum.com
204.210.248.31	A	cpe-204-210-248-31.columbus.res.rr.com
204.210.248.78	A	phillipcook.us
204.210.249.91	A+PTR	cpe-204-210-249-91.columbus.res.rr.com
204.210.249.239	A+PTR	cpe-204-210-249-239.columbus.res.rr.com
204.210.250.22	A+PTR	cpe-204-210-250-22.columbus.res.rr.com
204.210.250.22	A	latenighters.net
204.210.250.202	A+PTR	cpe-204-210-250-202.columbus.res.rr.com
204.210.250.233	A+PTR	204-210-250-233.res.spectrum.com
204.210.250.233	A	cpe-204-210-250-233.columbus.res.rr.com
204.210.252.19	A	m4.columbus.rr.com
204.210.252.125	A	mail.santander.cc
204.210.254.33	A	cpe-204-210-254-33.columbus.res.rr.com
204.210.255.255	PTR	cpe-204-210-255-255.columbus.res.rr.com