Robtex

Up: 201.216.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 201.216.0.0/20
Down right: 201.216.16.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
201.216.1.4	PTR	dynamic-ip-cr20121614.cable.net.co
201.216.1.32	PTR	dynamic-ip-cr201216132.cable.net.co
201.216.1.64	PTR	dynamic-ip-cr201216164.cable.net.co
201.216.3.32	PTR	dynamic-ip-cr201216332.cable.net.co
201.216.3.64	PTR	dynamic-ip-cr201216364.cable.net.co
201.216.3.128	PTR	dynamic-ip-cr2012163128.cable.net.co
201.216.4.35	PTR	dynamic-ip-cr201216435.cable.net.co
201.216.4.129	PTR	dynamic-ip-cr2012164129.cable.net.co
201.216.4.130	PTR	dynamic-ip-cr2012164130.cable.net.co
201.216.4.131	PTR	dynamic-ip-cr2012164131.cable.net.co
201.216.4.163	PTR	dynamic-ip-cr2012164163.cable.net.co
201.216.5.92	PTR	dynamic-ip-cr201216592.cable.net.co
201.216.5.99	PTR	dynamic-ip-cr201216599.cable.net.co
201.216.5.109	PTR	dynamic-ip-cr2012165109.cable.net.co
201.216.5.169	PTR	dynamic-ip-cr2012165169.cable.net.co
201.216.10.2	PTR	dynamic-ip-cr201216102.cable.net.co
201.216.10.160	PTR	dynamic-ip-cr20121610160.cable.net.co
201.216.13.44	A	as5613.myfoscam.org
201.216.14.1	PTR	dynamic-ip-cr201216141.cable.net.co
201.216.16.2	PTR	dynamic-ip-cr201216162.cable.net.co
201.216.24.34	PTR	dynamic-ip-cr2012162434.cable.net.co
201.216.24.194	PTR	dynamic-ip-cr20121624194.cable.net.co
201.216.25.160	PTR	dynamic-ip-cr20121625160.cable.net.co
201.216.25.163	PTR	dynamic-ip-cr20121625163.cable.net.co
201.216.26.18	A	mail2.cambioglobal.org
201.216.26.18	A	mail2.sismos.org
201.216.26.18	A	izel.osso.org.co
201.216.26.54	A	csi-consultores.com.co
201.216.27.12	A	mail.grupomcval.com
201.216.27.187	A	itsascolombia.com
201.216.27.187	A	mail.itsascolombia.com
201.216.31.1	PTR	dynamic-ip-cr201216311.cable.net.co
201.216.31.194	PTR	dynamic-ip-cr20121631194.cable.net.co