Robtex

Up: 199.7.66.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 199.7.66.0/25
Down right: 199.7.66.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
199.7.66.1	A+PTR	tld3.ultradns.org
199.7.66.1	A	e.dns.nic.tel
199.7.66.12	A	c9.hn.afilias-nst.info
199.7.66.14	PTR	c9.sc.afilias-nst.info
199.7.66.32	A+PTR	c9.org.afilias-nst.info
199.7.66.33	A+PTR	c9.info.afilias-nst.info
199.7.66.34	PTR	c9.aero.afilias-nst.info
199.7.66.35	PTR	c9.mobi.afilias-nst.info
199.7.66.36	PTR	c9.in.afilias-nst.info
199.7.66.37	PTR	c9.bz.afilias-nst.info
199.7.66.39	PTR	c9.ag.afilias-nst.info
199.7.66.41	PTR	c9.vc.afilias-nst.info
199.7.66.42	PTR	c9.hn.afilias-nst.info
199.7.66.45	PTR	c9.mn.afilias-nst.info
199.7.66.106	PTR	ns3.nic.coop
199.7.66.244	PTR	i-dns.pl
199.7.66.250	PTR	ns3.gtld.neustar
199.7.66.250	A	d9.asia.afilias-nst.asia
199.7.66.250	A	d9.asia.afilias-nst.info
199.7.66.251	PTR	c.dns.lu