Robtex

Up: 209.52.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 209.52.0.0/21
Down right: 209.52.8.0/21

IP	Type	Hostname
209.52.0.0	PTR	c209.52.0-0.clta.globetrotter.net
209.52.0.2	PTR	c209.52.0-2.clta.globetrotter.net
209.52.0.67	PTR	c209.52.0-67.clta.globetrotter.net
209.52.0.81	PTR	c209.52.0-81.clta.globetrotter.net
209.52.0.82	PTR	c209.52.0-82.clta.globetrotter.net
209.52.0.194	PTR	c209.52.0-194.clta.globetrotter.net
209.52.1.0	PTR	c209.52.1-0.clta.globetrotter.net
209.52.1.16	PTR	c209.52.1-16.clta.globetrotter.net
209.52.1.19	PTR	c209.52.1-19.clta.globetrotter.net
209.52.1.33	PTR	c209.52.1-33.clta.globetrotter.net
209.52.1.35	PTR	c209.52.1-35.clta.globetrotter.net
209.52.1.64	PTR	c209.52.1-64.clta.globetrotter.net
209.52.1.83	PTR	c209.52.1-83.clta.globetrotter.net
209.52.1.192	PTR	c209.52.1-192.clta.globetrotter.net
209.52.1.194	PTR	c209.52.1-194.clta.globetrotter.net
209.52.2.2	PTR	c209.52.2-2.clta.globetrotter.net
209.52.2.113	PTR	c209.52.2-113.clta.globetrotter.net
209.52.2.128	PTR	c209.52.2-128.clta.globetrotter.net
209.52.10.1	PTR	c209.52.10-1.clta.globetrotter.net
209.52.10.82	PTR	c209.52.10-82.clta.globetrotter.net
209.52.13.16	A	museworks.com
209.52.14.66	A	jenningsandassociates.com
209.52.15.32	PTR	c209.52.15-32.clta.globetrotter.net
209.52.15.83	PTR	c209.52.15-83.clta.globetrotter.net
209.52.15.113	PTR	c209.52.15-113.clta.globetrotter.net