Robtex

Up: 204.93.224.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 204.93.228.0/23
Down right: 204.93.230.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.93.228.4	PTR	unknown.scnet.net
204.93.228.77	PTR	unknown.scnet.net
204.93.228.199	PTR	unknown.scnet.net
204.93.230.146	PTR	unknown.scnet.net
204.93.231.45	PTR	unknown.scnet.net
204.93.231.45	A	szekinyc.com
204.93.231.45	A	emma-griffiths.de
204.93.231.233	PTR	unknown.scnet.net