Robtex

Up: 204.69.234.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 204.69.234.0/25
Down right: 204.69.234.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.69.234.1	PTR	udns1.ultradns.net
204.69.234.1	A	dns.novas.com
204.69.234.1	A	ns1.compuaid-solutions.com
204.69.234.243	PTR	ns1.staff-fma.com
204.69.234.244	PTR	ns1.bancinternetgroup.com
204.69.234.245	PTR	ns5.dns.net.nz
204.69.234.246	A+PTR	ns1.scholastic.com
204.69.234.247	PTR	notactive.ultradns.net
204.69.234.247	A	srv2-intgrammicro.ma
204.69.234.249	PTR	ns1.advent.com
204.69.234.251	A+PTR	nans1.levi.com
204.69.234.252	PTR	ns1.nsidns.net
204.69.234.253	PTR	udns1.newdotnet.net