Robtex

Up: 91.203.96.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 91.203.96.0/23
Down right: 91.203.98.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.203.96.12	PTR	p17-02.opera-mini.net
91.203.96.13	A	p17-03.opera-mini.net
91.203.96.15	A	t10-14.opera-mini.net
91.203.96.16	A	t12-12.opera-mini.net
91.203.96.17	A	p17-07.opera-mini.net
91.203.96.22	PTR	p17-12.opera-mini.net
91.203.96.24	PTR	dev-vfg-test-1.opera-mini.net
91.203.96.27	A	p16-01.opera-mini.net
91.203.96.29	A	t11-13.opera-mini.net
91.203.96.30	A	t11-14.opera-mini.net
91.203.96.35	A	t11-12.opera-mini.net
91.203.96.35	A	p16-11.opera-mini.net
91.203.96.37	A	p19-11.opera-mini.net
91.203.96.40	PTR	p13-01.opera-mini.net
91.203.96.44	A	p20-02.opera-mini.net
91.203.96.45	A	p20-03.opera-mini.net
91.203.96.47	A	p14-03.opera-mini.net
91.203.96.48	A	p20-06.opera-mini.net
91.203.96.49	A	p14-06.opera-mini.net
91.203.96.51	A	p20-09.opera-mini.net
91.203.96.52	A	p20-10.opera-mini.net
91.203.96.54	A+PTR	p20-12.opera-mini.net
91.203.96.55	A	p20-13.opera-mini.net
91.203.96.57	A	t12-14.opera-mini.net
91.203.96.58	A+PTR	p20-16.opera-mini.net
91.203.96.59	A	p21-01.opera-mini.net
91.203.96.60	A+PTR	p21-02.opera-mini.net
91.203.96.61	A	p21-03.opera-mini.net
91.203.96.62	A	p21-04.opera-mini.net
91.203.96.63	A	p21-05.opera-mini.net
91.203.96.64	A	p21-06.opera-mini.net
91.203.96.65	A	p21-07.opera-mini.net
91.203.96.67	A+PTR	p20-16-v01.opera-mini.net
91.203.96.71	A	t13-10.opera-mini.net
91.203.96.72	A+PTR	t10-15.opera-mini.net
91.203.96.73	A+PTR	t13-14.opera-mini.net
91.203.96.74	A	t13-15.opera-mini.net
91.203.96.76	A+PTR	t14-14.opera-mini.net
91.203.96.77	A+PTR	t14-15.opera-mini.net
91.203.96.78	A+PTR	t14-16.opera-mini.net
91.203.96.79	A	t18-11.opera-mini.net
91.203.96.80	A	t18-12.opera-mini.net
91.203.96.81	A	t18-13.opera-mini.net
91.203.96.82	A	t18-14.opera-mini.net
91.203.96.83	A	t18-15.opera-mini.net
91.203.96.84	A	t18-16.opera-mini.net
91.203.96.85	A+PTR	t19-11.opera-mini.net
91.203.96.100	A	t19-12.opera-mini.net
91.203.96.116	A+PTR	t19-13.opera-mini.net
91.203.96.117	A+PTR	t19-14.opera-mini.net
91.203.96.118	A+PTR	t19-15.opera-mini.net
91.203.96.121	A	t19-16.opera-mini.net
91.203.96.125	A+PTR	global-4-lvs-nerv2.opera-mini.net
91.203.96.125	A	g4-nerv2.opera-mini.net
91.203.96.125	A	p09-15.opera-mini.net
91.203.96.132	PTR	t17-01.opera.com
91.203.96.132	A	p10-13.opera-mini.net
91.203.96.132	A	t10-13.opera-mini.net
91.203.96.135	A+PTR	t17-04.opera.com
91.203.96.140	A+PTR	t17-09.opera.com
91.203.96.140	A	geo1.opera.com
91.203.96.141	A	t17-10.opera.com
91.203.96.143	A	t17-12.opera.com
91.203.96.186	A	ns1.opera-mini.net
91.203.96.187	A	ns2.opera-mini.net
91.203.96.190	A+PTR	t13-06.opera-mini.net
91.203.96.200	A+PTR	vpn.opera.com
91.203.96.205	A	nagioscom.opera.com
91.203.96.206	A+PTR	naemon.opera.com
91.203.96.206	A	t08-01.opera.com
91.203.96.212	A	t19-07.opera-mini.net
91.203.96.220	A+PTR	vorlon.taspel.com
91.203.96.220	A	mx.taspel.com
91.203.96.221	PTR	nic2.trolldom.no
91.203.96.221	PTR	t09-02-v06-stein.opera.com.96.203.91.in-addr.arpa
91.203.96.221	A	ying.nett.org
91.203.96.235	A	w-mdb.opera.com
91.203.96.240	A	pat-tazdevil.opera.com
91.203.96.253	A	static.geo.myopera.com
91.203.96.253	A	images.my.opera.com
91.203.96.253	A	files.geo.myopera.com
91.203.97.133	A+PTR	sec-2.opera.com
91.203.97.140	A+PTR	p25-08-v01.opera.com
91.203.97.142	A	p25-08-v03.opera.com
91.203.97.149	A	t12-01-v05.opera.com
91.203.97.150	A	ipodmz-2.opera.com
91.203.97.155	A+PTR	v122.proxmox-ipo.opera.technology
91.203.97.155	A	mobile.crash.opera.com
91.203.97.163	PTR	extension-host.opera.com
91.203.97.165	A	t12-11-v04.opera-mini.net
91.203.97.169	A+PTR	t12-11-v07.opera-mini.net
91.203.97.175	A+PTR	opium-critic.opera.com
91.203.97.175	A	t12-03-v01.opera.com
91.203.97.184	A+PTR	t12-03-v06.opera-mini.net
91.203.97.185	A	t12-05-v01.opera-mini.net
91.203.97.187	A	t12-03-v09.opera.com
91.203.97.190	PTR	thumbnails-tunnel.opera.com
91.203.97.190	A	thumbnails2.opera.com
91.203.97.190	A	thumbnails3.opera.com
91.203.97.196	A+PTR	v118.proxmox-ipo.opera.technology
91.203.97.245	A+PTR	cmmb.fw-osl.opera.com
91.203.97.247	A+PTR	oslo-guest.fw-osl.opera.com
91.203.97.248	A+PTR	bgp.fw-osl.opera.com
91.203.97.249	A+PTR	oslo-srv.fw-osl.opera.com
91.203.97.251	A+PTR	office.fw-osl.opera.com
91.203.97.252	PTR	oslo-probes.fw-osl.opera.com
91.203.97.252	A	probes-bgp.opera.com
91.203.97.252	A	tls-testing.opera.com
91.203.97.254	A+PTR	nerv.fw-osl.opera.com
91.203.98.118	PTR	nigeria-turbo-2-lvs-ishango-3.opera-mini.net
91.203.98.125	PTR	nigeria-turbo-2-lvs-ishango-10.opera-mini.net
91.203.99.16	PTR	addons.opera.com
91.203.99.16	A	*.secretsign.operaunite.com
91.203.99.16	A	deepakphilip.operaunite.com
91.203.99.17	PTR	auth.opera.com
91.203.99.22	PTR	extension-updates.opera.com
91.203.99.22	A	gadget-updates.opera.com
91.203.99.23	A	operamini.jp
91.203.99.23	A	operasoftware.co.uk
91.203.99.23	A	operamini.ma
91.203.99.25	A+PTR	link.opera.com
91.203.99.29	PTR	xml.opera.com
91.203.99.36	PTR	sitecheck2.opera.com
91.203.99.52	A	xn--8ers71d.cn
91.203.99.52	A	chooseopera.com
91.203.99.52	A	operamini.tel
91.203.99.110	A+PTR	sql-oc.opera.com
91.203.99.196	A	p17-01.opera-mini.net
91.203.99.198	A	p16-08.opera-mini.net