Robtex

Up: 64.53.32.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 64.53.33.0/25
Down right: 64.53.33.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.53.33.2	A+PTR	dns1.dsl.cstel.net
64.53.33.3	PTR	www.bobwhitequail.net
64.53.33.3	PTR	dsl.cstel.net
64.53.33.3	PTR	www.cstel.net
64.53.33.7	PTR	comsouth.net
64.53.33.7	PTR	dsl7.dsl.cstel.net
64.53.33.9	PTR	blackbart.dsl.cstel.net
64.53.33.9	A	bigbaleseparator.com
64.53.33.9	A	hawkinsvillerotary.org