Robtex

Up: 66.225.252.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 66.225.253.0/25
Down right: 66.225.253.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.225.253.0	PTR	network
66.225.253.43	PTR	unknown.hostforweb.com
66.225.253.55	PTR	unknown.hostforweb.com
66.225.253.81	PTR	commonplaces.com
66.225.253.82	PTR	commonplaces.com
66.225.253.87	PTR	unknown.hostforweb.com
66.225.253.87	A	ns1.ucfm2.com
66.225.253.88	PTR	unknown.hostforweb.com
66.225.253.88	A	ns2.ucfm2.com
66.225.253.94	PTR	server.kokina.org
66.225.253.99	PTR	unknown.hostforweb.net
66.225.253.99	A	planopaiges.us
66.225.253.100	PTR	unknown.hostforweb.net
66.225.253.100	A	cancermarijuana.com
66.225.253.100	A	jenniferandjason.com
66.225.253.102	PTR	unknown.hostforweb.com
66.225.253.102	A	nudata.info
66.225.253.102	A	mail.creez.net
66.225.253.106	PTR	unknown.hostforweb.com
66.225.253.120	A	ns1.designdaterra.com.br
66.225.253.125	PTR	unknown.hostforweb.com
66.225.253.129	PTR	unknown.hostforweb.com
66.225.253.129	A	embutidosarichuna.com
66.225.253.142	PTR	server.netx.com.mx
66.225.253.148	PTR	dns01.diverse.net.nz
66.225.253.148	A	romania-news.org
66.225.253.148	A	ny-news.org
66.225.253.149	PTR	host6.conecta10.com.br
66.225.253.149	A	localhost.conecta10.com.br
66.225.253.149	A	server1.themusicsite.com
66.225.253.150	PTR	server.guiafe.com.ar
66.225.253.171	PTR	globaltechsa.net
66.225.253.188	PTR	unknown.hostforweb.com
66.225.253.200	PTR	madamefarm.com
66.225.253.200	A	ns1.ufo.com.br
66.225.253.200	A	gevaerd.com
66.225.253.235	PTR	server.jusrionegro.gov.ar
66.225.253.253	PTR	500.irb.ar7.ord6.us.scnet.net
66.225.253.255	PTR	broadcast