Robtex

Up: 209.163.224.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 209.163.232.0/22
Down right: 209.163.236.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
209.163.233.35	PTR	okeeffemuseum.org
209.163.233.40	PTR	gambusia.org
209.163.233.144	A	trailsendcompany.com
209.163.233.144	A	trailsendpopcorn.net
209.163.233.146	A	fundkids.net
209.163.233.163	PTR	elxis.com
209.163.233.170	PTR	oculusent.net
209.163.235.9	A	initek.com
209.163.235.43	A	www.shockdoc.com
209.163.235.43	A	*.shockdoc.com
209.163.235.43	A	mail2.shockdoc.com
209.163.236.18	PTR	ns1.webaddress.com.au
209.163.236.19	PTR	ns2.webaddress.com.au
209.163.236.64	PTR	interactive-media.net
209.163.236.96	PTR	kenstar.com
209.163.236.106	PTR	adultdomains.com
209.163.237.130	PTR	www.os4.com
209.163.237.192	PTR	up.co.il
209.163.237.193	PTR	www.unrestricted.com
209.163.237.194	PTR	linux.com.ua
209.163.237.233	PTR	balloongirls.com
209.163.237.236	PTR	ns2.laughingsquid.net
209.163.239.52	PTR	bestsexsites.org
209.163.239.106	PTR	sex-zone.com
209.163.239.160	PTR	www.the-lodging-guide.com
209.163.239.220	PTR	www.x1x.com