Robtex

Up: 192.84.216.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 192.84.216.0/23
Down right: 192.84.218.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.84.218.30	A	sqlstandards.org
192.84.218.30	A	null.jcc.com
192.84.218.30	A	null.sqlstandards.org
192.84.218.31	A+PTR	ns1.jcc.com
192.84.218.31	A	arachnid.jcc.com
192.84.218.32	A+PTR	ns1.jcc.com
192.84.218.32	A	arachnid.jcc.com
192.84.218.33	A+PTR	ms1.jcc.com
192.84.218.34	A+PTR	ns3.jcc.com
192.84.218.35	PTR	ns4.jcc.com
192.84.218.41	A+PTR	ns2.jcc.com
192.84.218.43	A+PTR	jcchosting.com
192.84.218.43	PTR	jccscoreboard.com
192.84.218.43	A+PTR	lclscoreboard.com
192.84.218.51	A	www.utilities.com
192.84.218.180	A	webmail.pmmg.net
192.84.219.1	PTR	weevil.radlogic.com.au
192.84.219.240	A	mail.radlogic.com