Robtex

Up: 216.68.204.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 216.68.205.0/25
Down right: 216.68.205.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.68.205.2	A	firewall.cmhregional.com
216.68.205.35	PTR	pbsiemr.cmhregional.com
216.68.205.68	A+PTR	mail1.cmhregional.com
216.68.205.68	A	mail1.cmhregional.net
216.68.205.68	A	mail1.cmhregional.org
216.68.205.73	PTR	ns1.cmhregional.com
216.68.205.73	A	w8go.net
216.68.205.73	A	ns1.cmhregional.net
216.68.205.74	PTR	ns2.cmhregional.com
216.68.205.74	A	w8go.net
216.68.205.74	A	cmhregional.net
216.68.205.77	A+PTR	mail2.cmhregional.com
216.68.205.77	A	mail2.cmhregional.net
216.68.205.77	A	mail2.cmhregional.org
216.68.205.93	A	nr30-216-68-205-93.fuse.net