Robtex

Up: 64.15.208.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 64.15.216.0/22
Down right: 64.15.220.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.15.216.117	PTR	host-64-15-216-117.cybernetcom.com
64.15.217.130	A	mail.ocbanquet.com
64.15.218.21	A	www.originalwireless.com
64.15.218.21	A	originalwireless.com
64.15.218.89	A	bccla.com
64.15.219.41	PTR	mail.spacecomputer.com
64.15.219.114	A	mail.kadimasecurity.com
64.15.219.130	PTR	mail.zcooper.com
64.15.219.246	PTR	mail.la.micharllc.com
64.15.220.24	A	mail.schulzehaynes.com
64.15.220.82	A	pathkare.com
64.15.222.100	PTR	smtp.premireinfusion.com
64.15.222.100	A	shopping.ketab.com
64.15.222.100	A	eminentpersians.com
64.15.222.140	A	www2.primexportal.com
64.15.222.141	A	secure-primexlab.com
64.15.222.142	A	primexportal.com
64.15.222.142	A	www.primexportal.com
64.15.223.122	A+PTR	mail.tampicospice.com
64.15.223.146	A	remote.csresearchonline.com
64.15.223.147	A	mail.csresearchonline.com
64.15.223.203	A+PTR	post1.delphila.org
64.15.223.203	A	mail.delphila.org