Robtex

Up: 66.90.68.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 66.90.68.0/25
Down right: 66.90.68.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.90.68.10	PTR	mx1-1.vmta-fdc.srreach.com
66.90.68.15	A+PTR	resolver15.fdcservers.net
66.90.68.16	A+PTR	resolver16.fdcservers.net
66.90.68.17	A+PTR	resolver15.fdcservers.net
66.90.68.25	PTR	resolver17.fdcservers.net
66.90.68.25	A	resolver25.fdcservers.net
66.90.68.27	PTR	unagi.kuretz.com
66.90.68.83	PTR	simple.calldrivecut.net
66.90.68.85	PTR	management.calldrivecut.net
66.90.68.93	PTR	mail.webscripthouse.com
66.90.68.100	PTR	battery.closecallcut.net
66.90.68.107	PTR	number.closecallcut.net
66.90.68.114	PTR	dramatic.homebrushnet.net
66.90.68.117	PTR	church.homebrushnet.net
66.90.68.121	PTR	bath.homebrushnet.net
66.90.68.133	PTR	flame.redhotservers.com
66.90.68.138	PTR	mta-138.mail.vancouverwintersite.info
66.90.68.139	PTR	mta-139.mail.vancouverwintersite.info
66.90.68.140	PTR	mta-140.mail.vancouverwintersite.info
66.90.68.141	PTR	mta-141.mail.vancouverwintersite.info
66.90.68.141	A	www.shuahui.com
66.90.68.141	A	www.okyun.net
66.90.68.142	PTR	mta-142.mail.vancouverwintersite.info
66.90.68.142	A	dmledic.com
66.90.68.142	A	eapplecable.com
66.90.68.146	A	*.i9xx.com
66.90.68.146	A	www.a8kx.com
66.90.68.146	A	www.i9xx.com
66.90.68.147	A	178hh.com
66.90.68.147	A	se9.kx747.com
66.90.68.147	A	www.kx04.com
66.90.68.150	A	uh53.com
66.90.68.154	PTR	keeleysam.com
66.90.68.155	PTR	keeleysam.com
66.90.68.156	PTR	keeleysam.com
66.90.68.157	PTR	keeleysam.com
66.90.68.158	PTR	keeleysam.com
66.90.68.162	PTR	serv1.hkvj.com
66.90.68.163	PTR	serv2.hkvj.com
66.90.68.164	PTR	serv3.hkvj.com
66.90.68.170	A	ns1.dominiocreativo.net
66.90.68.173	A	mail.svmultimedia.com
66.90.68.178	A+PTR	chicago-l2tp.hidemytraxvpn.ca
66.90.68.186	PTR	no-trace.me
66.90.68.204	A	ns3.host4cents.com