Robtex

Up: 201.216.216.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 201.216.217.0/25
Down right: 201.216.217.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
201.216.217.1	PTR	customer-static-201-216-217.1.iplannetworks.net
201.216.217.7	PTR	customer-static-201-216-217.7.iplannetworks.net
201.216.217.15	PTR	customer-static-201-216-217.15.iplannetworks.net
201.216.217.19	PTR	customer-static-201-216-217.19.iplannetworks.net
201.216.217.20	PTR	customer-static-201-216-217.20.iplannetworks.net
201.216.217.25	PTR	customer-static-201-216-217.25.iplannetworks.net
201.216.217.26	PTR	customer-static-201-216-217.26.iplannetworks.net
201.216.217.41	PTR	customer-static-201-216-217.41.iplannetworks.net
201.216.217.51	PTR	customer-static-201-216-217.51.iplannetworks.net
201.216.217.57	PTR	customer-static-201-216-217.57.iplannetworks.net
201.216.217.57	A	grandiet.com.ar
201.216.217.60	PTR	customer-static-201-216-217.60.iplannetworks.net
201.216.217.63	PTR	customer-static-201-216-217.63.iplannetworks.net
201.216.217.65	PTR	customer-static-201-216-217.65.iplannetworks.net
201.216.217.73	PTR	customer-static-201-216-217.73.iplannetworks.net
201.216.217.73	A	impressario.com.ar
201.216.217.73	A	mail.impressario.com.ar
201.216.217.85	A+PTR	mail.interplazahotel.com.ar
201.216.217.85	A	gherra.com.ar
201.216.217.85	A	clarsson.com.ar
201.216.217.91	PTR	customer-static-201-216-217.91.iplannetworks.net
201.216.217.96	PTR	customer-static-201-216-217.96.iplannetworks.net
201.216.217.103	PTR	customer-static-201-216-217.103.iplannetworks.net
201.216.217.109	PTR	customer-static-201-216-217.109.iplannetworks.net
201.216.217.110	PTR	customer-static-201-216-217.110.iplannetworks.net
201.216.217.111	PTR	customer-static-201-216-217.111.iplannetworks.net
201.216.217.113	PTR	customer-static-201-216-217.113.iplannetworks.net
201.216.217.115	PTR	customer-static-201-216-217.115.iplannetworks.net
201.216.217.117	PTR	customer-static-201-216-217.117.iplannetworks.net
201.216.217.124	PTR	customer-static-201-216-217.124.iplannetworks.net
201.216.217.127	PTR	customer-static-201-216-217.127.iplannetworks.net
201.216.217.128	PTR	customer-static-201-216-217.128.iplannetworks.net
201.216.217.129	PTR	customer-static-201-216-217.129.iplannetworks.net
201.216.217.130	PTR	customer-static-201-216-217.130.iplannetworks.net
201.216.217.153	PTR	customer-static-201-216-217.153.iplannetworks.net
201.216.217.157	PTR	customer-static-201-216-217.157.iplannetworks.net
201.216.217.164	PTR	customer-static-201-216-217.164.iplannetworks.net
201.216.217.169	PTR	customer-static-201-216-217.169.iplannetworks.net
201.216.217.175	PTR	customer-static-201-216-217.175.iplannetworks.net
201.216.217.188	PTR	customer-static-201-216-217.188.iplannetworks.net
201.216.217.191	PTR	customer-static-201-216-217.191.iplannetworks.net
201.216.217.193	PTR	mx.grupospa.com.ar
201.216.217.193	PTR	customer-static-201-216-217.193.iplannetworks.net
201.216.217.217	PTR	9dejulio.telenik.com.ar
201.216.217.235	PTR	customer-static-201-216-217.235.iplannetworks.net
201.216.217.248	PTR	customer-static-201-216-217.248.iplannetworks.net