Robtex

Up: 204.48.58.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 204.48.58.0/25
Down right: 204.48.58.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.48.58.4	PTR	204-48-58-4.skyrunner.net
204.48.58.5	PTR	ns1648.ztomy.com
204.48.58.50	A	www.horseoncourse.com
204.48.58.50	A	cheaptechguy.com
204.48.58.50	A	reynardsretreat.com
204.48.58.51	A	fzllc.com