Robtex

Up: 216.185.208.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 216.185.208.0/25
Down right: 216.185.208.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.185.208.10	A+PTR	ns1.nextag.com
216.185.208.12	A+PTR	ns3.nextag.com
216.185.208.12	A	ns0.nextag.com
216.185.208.12	A	ns4.nextag.com
216.185.208.15	A	ftp.nextag.com
216.185.208.16	A+PTR	upload.nextag.com
216.185.208.18	A+PTR	qmail.nextag.net
216.185.208.20	A	ftp2.nextag.com