Robtex

Up: 63.69.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 63.69.20.0/23
Down right: 63.69.22.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
63.69.20.1	PTR	host-63-69-20-1.compusource.net
63.69.20.3	A+PTR	host-63-69-20-3.compusource.net
63.69.20.20	A	host-63-69-20-20.compusource.net
63.69.20.29	PTR	host-63-69-20-29.compusource.net
63.69.20.29	A	page1media.com
63.69.20.46	A	host-63-69-20-46.compusource.net
63.69.20.68	A	host-63-69-20-68.compusource.net
63.69.20.81	A	host-63-69-20-81.compusource.net
63.69.20.88	A	host-63-69-20-88.compusource.net
63.69.20.114	A	host-63-69-20-114.compusource.net
63.69.20.122	PTR	host-63-69-20-122.compusource.net
63.69.20.143	A	host-63-69-20-143.compusource.net
63.69.20.199	A	host-63-69-20-199.compusource.net
63.69.20.213	A	host-63-69-20-213.compusource.net
63.69.20.217	PTR	host-63-69-20-217.compusource.net
63.69.20.225	A	host-63-69-20-225.compusource.net
63.69.20.247	A	host-63-69-20-247.compusource.net
63.69.20.250	A+PTR	exchange01.editorialtelevisa.com
63.69.20.250	A	mail.televisapublishing.com
63.69.20.250	A	mail.editorialtelevisa.com
63.69.23.232	A	host-63-69-23-232.compusource.net
63.69.23.239	PTR	mail.compusource.net
63.69.23.239	A	mail.lehmanmazda.com
63.69.23.252	PTR	ns1.compusource.net
63.69.23.253	PTR	ns3.compusource.net