Robtex

Up: 200.68.120.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 200.68.121.0/25
Down right: 200.68.121.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
200.68.121.4	PTR	customer-static-68-121-4.iplannetworks.net
200.68.121.5	PTR	customer-static-68-121-5.iplannetworks.net
200.68.121.7	PTR	customer-static-68-121-7.iplannetworks.net
200.68.121.8	PTR	customer-static-68-121-8.iplannetworks.net
200.68.121.12	PTR	customer-static-68-121-12.iplannetworks.net
200.68.121.16	PTR	customer-static-68-121-16.iplannetworks.net
200.68.121.18	PTR	customer-static-68-121-18.iplannetworks.net
200.68.121.19	A	apligem.activiaweb.com.ar
200.68.121.20	A	activiafarmacity.homeip.net
200.68.121.29	PTR	customer-static-68-121-29.iplannetworks.net
200.68.121.30	PTR	customer-static-68-121-30.iplannetworks.net
200.68.121.32	PTR	customer-static-68-121-32.iplannetworks.net
200.68.121.38	PTR	customer-static-68-121-38.iplannetworks.net
200.68.121.42	A+PTR	mail.zma.com.ar
200.68.121.42	A	mail.zma-it.com
200.68.121.42	A	mail.zma.la
200.68.121.44	PTR	customer-static-68-121-44.iplannetworks.net
200.68.121.44	A	labs.zma-it.com
200.68.121.44	A	labs.zma.com.ar
200.68.121.45	PTR	customer-static-68-121-45.iplannetworks.net
200.68.121.45	A	ns2.zma-it.net
200.68.121.48	PTR	customer-static-68-121-48.iplannetworks.net
200.68.121.51	PTR	customer-static-68-121-51.iplannetworks.net
200.68.121.51	A	sylar.easytech.com.ar
200.68.121.51	A	ns2.easytech.com.ar
200.68.121.54	PTR	customer-static-68-121-54.iplannetworks.net
200.68.121.57	A+PTR	vpn.vtgconsultores.com.ar
200.68.121.57	A	*.epless.net
200.68.121.57	A	mail.epless.net
200.68.121.58	PTR	customer-static-68-121-58.iplannetworks.net
200.68.121.58	A	mail.vtgconsultores.com.ar
200.68.121.60	A	digitalsinergia.com
200.68.121.60	A	mail.digitalsinergia.com
200.68.121.60	A	mail.digitalsynergia.com
200.68.121.62	PTR	customer-static-68-121-62.iplannetworks.net
200.68.121.65	PTR	customer-static-68-121-65.iplannetworks.net
200.68.121.67	PTR	customer-static-68-121-67.iplannetworks.net
200.68.121.68	PTR	customer-static-68-121-68.iplannetworks.net
200.68.121.70	PTR	customer-static-68-121-70.iplannetworks.net
200.68.121.79	PTR	customer-static-68-121-79.iplannetworks.net
200.68.121.80	PTR	customer-static-68-121-80.iplannetworks.net
200.68.121.81	PTR	customer-static-68-121-81.iplannetworks.net
200.68.121.85	PTR	customer-static-68-121-85.iplannetworks.net
200.68.121.86	PTR	customer-static-68-121-86.iplannetworks.net
200.68.121.88	PTR	customer-static-68-121-88.iplannetworks.net
200.68.121.92	PTR	customer-static-68-121-92.iplannetworks.net
200.68.121.95	PTR	customer-static-68-121-95.iplannetworks.net
200.68.121.96	PTR	customer-static-68-121-96.iplannetworks.net
200.68.121.99	PTR	customer-static-68-121-99.iplannetworks.net
200.68.121.101	PTR	mail.taxipremium.com.ar
200.68.121.103	PTR	customer-static-68-121-103.iplannetworks.net
200.68.121.105	PTR	mail.servilink.com.ar
200.68.121.106	PTR	customer-static-68-121-106.iplannetworks.net
200.68.121.113	PTR	mx.capif.org.ar
200.68.121.114	PTR	mx.capif.org.ar
200.68.121.116	PTR	customer-static-68-121-116.iplannetworks.net
200.68.121.120	PTR	customer-static-68-121-120.iplannetworks.net
200.68.121.123	PTR	customer-static-68-121-123.iplannetworks.net
200.68.121.134	PTR	customer-static-68-121-134.iplannetworks.net
200.68.121.137	PTR	static-68-121-137.iplannetworks.net
200.68.121.140	A+PTR	mail.globalticket.com.ar
200.68.121.140	A	moe.msa.com.ar
200.68.121.140	A	voto-electronico.com.ar
200.68.121.142	PTR	static-68-121-142.iplannetworks.net
200.68.121.143	PTR	customer-static-68-121-143.iplannetworks.net
200.68.121.144	PTR	customer-static-68-121-144.iplannetworks.net
200.68.121.153	PTR	server1.acro.net.ar
200.68.121.157	PTR	server5.acro.net.ar
200.68.121.158	PTR	customer-static-68-121-158.iplannetworks.net
200.68.121.173	PTR	customer-static-68-121-173.iplannetworks.net
200.68.121.174	PTR	customer-static-68-121-174.iplannetworks.net
200.68.121.177	PTR	customer-static-68-121-177.iplannetworks.net
200.68.121.179	PTR	customer-static-68-121-179.iplannetworks.net
200.68.121.180	A	mail3.cardinalsisa.com
200.68.121.182	PTR	customer-static-68-121-182.iplannetworks.net
200.68.121.184	PTR	customer-static-68-121-184.iplannetworks.net
200.68.121.186	PTR	ns2.grupo-netcom.com
200.68.121.188	PTR	customer-static-68-121-188.iplannetworks.net
200.68.121.189	PTR	customer-static-68-121-189.iplannetworks.net
200.68.121.190	PTR	customer-static-68-121-190.iplannetworks.net
200.68.121.191	PTR	customer-static-68-121-191.iplannetworks.net
200.68.121.194	PTR	mx2.baynet.com.ar
200.68.121.195	PTR	baynet.com.ar
200.68.121.196	PTR	baynet.com.ar
200.68.121.199	PTR	customer-static-68-121-199.iplannetworks.net
200.68.121.201	PTR	mail2.brother.com.ar
200.68.121.205	PTR	customer-static-68-121-205.iplannetworks.net
200.68.121.206	PTR	customer-static-68-121-206.iplannetworks.net
200.68.121.208	PTR	customer-static-68-121-208.iplannetworks.net
200.68.121.209	PTR	customer-static-68-121-209.iplannetworks.net
200.68.121.210	PTR	customer-static-210-210.iplannetworks.net
200.68.121.211	PTR	customer-static-68-121-211.iplannetworks.net
200.68.121.214	PTR	customer-static-68-121-214.iplannetworks.net
200.68.121.218	PTR	mail.swapconsulting.com.ar
200.68.121.222	PTR	customer-static-68-121-222.iplannetworks.net
200.68.121.225	PTR	customer-static-68-121-225.iplannetworks.net
200.68.121.228	PTR	customer-static-68-121-228.iplannetworks.net
200.68.121.235	PTR	customer-static-68-121-235.iplannetworks.net
200.68.121.237	PTR	customer-static-68-121-237.iplannetworks.net
200.68.121.241	PTR	customer-static-68-121-241.iplannetworks.net
200.68.121.242	PTR	customer-static-68-121-242.iplannetworks.net
200.68.121.243	PTR	customer-static-68-121-243.iplannetworks.net
200.68.121.244	PTR	customer-static-68-121-244.iplannetworks.net
200.68.121.253	PTR	customer-static-68-121-253.iplannetworks.net
200.68.121.255	PTR	customer-static-68-121-255.iplannetworks.net