Robtex

Up: 192.0.40.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 192.0.44.0/23
Down right: 192.0.46.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.0.44.0	A	44-0.dc.icann.org
192.0.44.1	A+PTR	44-1.dc.icann.org
192.0.44.2	PTR	44-2.dc.icann.org
192.0.44.3	A	44-3.dc.icann.org
192.0.44.7	A	44-7.dc.icann.org
192.0.44.8	A	44-8.dc.icann.org
192.0.44.9	PTR	44-9.dc.icann.org
192.0.44.10	PTR	44-10.dc.icann.org
192.0.44.12	PTR	44-12.dc.icann.org
192.0.44.13	PTR	44-13.dc.icann.org
192.0.44.17	PTR	44-17.dc.icann.org
192.0.44.20	PTR	44-20.dc.icann.org
192.0.44.21	PTR	44-21.dc.icann.org
192.0.44.24	PTR	44-24.dc.icann.org
192.0.44.28	A+PTR	44-28.dc.icann.org
192.0.44.33	PTR	44-33.dc.icann.org
192.0.44.36	PTR	44-36.dc.icann.org
192.0.44.39	PTR	44-39.dc.icann.org
192.0.44.41	PTR	44-41.dc.icann.org
192.0.44.42	PTR	44-42.dc.icann.org
192.0.44.43	PTR	44-43.dc.icann.org
192.0.44.47	A+PTR	44-47.dc.icann.org
192.0.44.52	A	44-52.dc.icann.org
192.0.44.55	A+PTR	44-55.dc.icann.org
192.0.44.57	PTR	44-57.dc.icann.org
192.0.44.60	PTR	44-60.dc.icann.org
192.0.44.61	A+PTR	44-61.dc.icann.org
192.0.44.62	PTR	44-62.dc.icann.org
192.0.44.63	PTR	44-63.dc.icann.org
192.0.44.66	A+PTR	44-66.dc.icann.org
192.0.44.70	PTR	44-70.dc.icann.org
192.0.44.72	PTR	44-72.dc.icann.org
192.0.44.73	A	44-73.dc.icann.org
192.0.44.76	A	44-76.dc.icann.org
192.0.44.78	PTR	44-78.dc.icann.org
192.0.44.79	PTR	44-79.dc.icann.org
192.0.44.80	PTR	44-80.dc.icann.org
192.0.44.81	A	44-81.dc.icann.org
192.0.44.91	A+PTR	44-91.dc.icann.org
192.0.44.100	A+PTR	44-100.dc.icann.org
192.0.44.101	A	44-101.dc.icann.org
192.0.44.105	A+PTR	44-105.dc.icann.org
192.0.44.109	A+PTR	44-109.dc.icann.org
192.0.44.110	A	44-110.dc.icann.org
192.0.44.128	A	44-128.dc.icann.org
192.0.44.129	A+PTR	44-129.dc.icann.org
192.0.44.135	A	44-135.dc.icann.org
192.0.44.141	A	44-141.dc.icann.org
192.0.44.144	A+PTR	44-144.dc.icann.org
192.0.44.148	A+PTR	44-148.dc.icann.org
192.0.44.155	A	44-155.dc.icann.org
192.0.44.183	A+PTR	44-183.dc.icann.org
192.0.45.1	A+PTR	45-1.dc.icann.org
192.0.45.25	A+PTR	ksk-rollover5-uat.dev.icann.org
192.0.45.25	A	45-25.dc.icann.org
192.0.45.35	A	45-35.dc.icann.org
192.0.45.55	A+PTR	45-55.dc.icann.org
192.0.45.65	A+PTR	45-65.dc.icann.org
192.0.45.73	PTR	45-73.dc.icann.org
192.0.45.73	A	remote-scan.icann.org
192.0.45.84	A+PTR	45-84.dc.icann.org
192.0.45.87	A	45-87.dc.icann.org
192.0.45.92	A	45-92.dc.icann.org
192.0.45.104	A+PTR	45-104.dc.icann.org
192.0.45.115	A+PTR	45-115.dc.icann.org
192.0.45.118	A	45-118.dc.icann.org
192.0.45.127	PTR	45-127.dc.icann.org
192.0.45.143	A+PTR	45-143.dc.icann.org
192.0.45.150	PTR	45-150.dc.icann.org
192.0.45.184	A+PTR	45-184.dc.icann.org
192.0.45.189	A	45-189.dc.icann.org
192.0.45.192	A	45-192.dc.icann.org
192.0.45.206	A+PTR	gtldprobe7.dev.icann.org
192.0.45.224	A	45-224.dc.icann.org
192.0.45.228	PTR	45-228.dc.icann.org
192.0.45.231	A	45-231.dc.icann.org
192.0.45.242	PTR	45-242.dc.icann.org
192.0.45.243	PTR	45-243.dc.icann.org
192.0.45.248	A	45-248.dc.icann.org
192.0.46.1	A+PTR	46-1.dc.icann.org
192.0.46.2	PTR	46-2.dc.icann.org
192.0.46.3	A+PTR	46-3.dc.icann.org
192.0.46.6	PTR	46-6.dc.icann.org
192.0.46.8	PTR	46-8.dc.icann.org
192.0.46.8	A	ianawww.vip.icann.org
192.0.46.11	A+PTR	46-11.dc.icann.org
192.0.46.16	PTR	46-16.dc.icann.org
192.0.46.17	PTR	46-17.dc.icann.org
192.0.46.19	PTR	46-19.dc.icann.org
192.0.46.22	PTR	46-22.dc.icann.org
192.0.46.23	A+PTR	46-23.dc.icann.org
192.0.46.25	PTR	46-25.dc.icann.org
192.0.46.28	A+PTR	46-28.dc.icann.org
192.0.46.30	PTR	46-30.dc.icann.org
192.0.46.32	A+PTR	46-32.dc.icann.org
192.0.46.33	A+PTR	46-33.dc.icann.org
192.0.46.34	PTR	46-34.dc.icann.org
192.0.46.38	PTR	46-38.dc.icann.org
192.0.46.41	PTR	46-41.dc.icann.org
192.0.46.42	PTR	46-42.dc.icann.org
192.0.46.44	PTR	46-44.dc.icann.org
192.0.46.49	A+PTR	46-49.dc.icann.org
192.0.46.50	A+PTR	46-50.dc.icann.org
192.0.46.51	A+PTR	46-51.dc.icann.org
192.0.46.52	PTR	46-52.dc.icann.org
192.0.46.53	PTR	46-53.dc.icann.org
192.0.46.55	PTR	46-55.dc.icann.org
192.0.46.59	PTR	46-59.dc.icann.org
192.0.46.61	A+PTR	46-61.dc.icann.org
192.0.46.62	PTR	46-62.dc.icann.org
192.0.46.63	PTR	46-63.dc.icann.org
192.0.46.64	PTR	46-64.dc.icann.org
192.0.46.67	A+PTR	46-67.dc.icann.org
192.0.46.69	PTR	46-69.dc.icann.org
192.0.46.71	A+PTR	pechora5.icann.org
192.0.46.71	A	pechora.icann.org
192.0.46.72	A+PTR	pechora6.icann.org
192.0.46.72	A	pechora.icann.org
192.0.46.73	PTR	pechora7.icann.org
192.0.46.73	A	pechora.icann.org
192.0.46.73	A	pechora3.icann.org
192.0.46.74	A	pechora.icann.org
192.0.46.74	A	pechora8.icann.org
192.0.46.76	A+PTR	ppa1.dc.icann.org
192.0.46.77	A+PTR	ppa4.dc.icann.org
192.0.46.78	A+PTR	ppa5.dc.icann.org
192.0.46.80	A	m00.dc.icann.org
192.0.46.81	A+PTR	smtp01.icann.org
192.0.46.81	A	smtp01.vip.icann.org
192.0.46.82	PTR	46-82.dc.icann.org
192.0.46.83	A+PTR	pen.dc.icann.org
192.0.46.84	PTR	pechorax.dc.icann.org
192.0.46.85	A+PTR	46-85.dc.icann.org
192.0.46.88	A+PTR	rzm-ntia1.dc.icann.org
192.0.46.89	PTR	ntia-ui1.dc.icann.org
192.0.46.91	PTR	46-91.dc.icann.org
192.0.46.93	A+PTR	46-93.dc.icann.org
192.0.46.94	PTR	46-94.dc.icann.org
192.0.46.95	PTR	46-95.dc.icann.org
192.0.46.96	PTR	46-96.dc.icann.org
192.0.46.97	A+PTR	46-97.dc.icann.org
192.0.46.99	A+PTR	46-99.dc.icann.org
192.0.46.100	PTR	voip1.dc.icann.org
192.0.46.104	PTR	46-104.dc.icann.org
192.0.46.108	A+PTR	46-108.dc.icann.org
192.0.46.109	PTR	46-109.dc.icann.org
192.0.46.110	A+PTR	gtldmonitor1.dc.icann.org
192.0.46.110	A	46-110.dc.icann.org
192.0.46.114	A+PTR	46-114.dc.icann.org
192.0.46.115	A+PTR	ksr-east.dns.icann.org
192.0.46.115	A	46-115.dc.icann.org
192.0.46.116	PTR	46-116.dc.icann.org
192.0.46.120	A+PTR	46-120.dc.icann.org
192.0.46.127	A+PTR	46-127.dc.icann.org
192.0.46.128	A+PTR	46-128.dc.icann.org
192.0.46.130	A+PTR	46-130.dc.icann.org
192.0.46.132	PTR	b.ns.nic.cz
192.0.46.132	A	46-132.dc.icann.org
192.0.46.132	A	manitu.ns.nic.cz
192.0.46.134	PTR	46-134.dc.icann.org
192.0.46.136	PTR	niccl.dns.icann.org
192.0.46.137	PTR	46-137.dc.icann.org
192.0.46.140	PTR	46-140.dc.icann.org
192.0.46.144	PTR	46-144.dc.icann.org
192.0.46.145	A+PTR	46-145.dc.icann.org
192.0.46.146	PTR	46-146.dc.icann.org
192.0.46.147	PTR	46-147.dc.icann.org
192.0.46.149	PTR	46-149.dc.icann.org
192.0.46.150	PTR	46-150.dc.icann.org
192.0.46.155	PTR	46-155.dc.icann.org
192.0.46.161	A+PTR	46-161.dc.icann.org
192.0.46.165	PTR	46-165.dc.icann.org
192.0.46.167	PTR	46-167.dc.icann.org
192.0.46.168	PTR	46-168.dc.icann.org
192.0.46.173	PTR	46-173.dc.icann.org
192.0.46.174	A+PTR	46-174.dc.icann.org
192.0.46.175	PTR	46-175.dc.icann.org
192.0.46.176	PTR	46-176.dc.icann.org
192.0.46.177	A+PTR	46-177.dc.icann.org
192.0.46.180	A+PTR	46-180.dc.icann.org
192.0.46.182	A+PTR	46-182.dc.icann.org
192.0.46.183	PTR	46-183.dc.icann.org
192.0.46.185	PTR	46-185.dc.icann.org
192.0.46.186	PTR	46-186.dc.icann.org
192.0.46.187	PTR	46-187.dc.icann.org
192.0.46.188	PTR	46-188.dc.icann.org
192.0.46.189	PTR	46-189.dc.icann.org
192.0.46.190	A+PTR	46-190.dc.icann.org
192.0.46.191	A+PTR	46-191.dc.icann.org
192.0.46.193	A+PTR	46-193.dc.icann.org
192.0.46.197	PTR	46-197.dc.icann.org
192.0.46.200	PTR	46-200.dc.icann.org
192.0.46.203	PTR	46-203.dc.icann.org
192.0.46.204	PTR	46-204.dc.icann.org
192.0.46.205	PTR	46-205.dc.icann.org
192.0.46.210	PTR	46-210.dc.icann.org
192.0.46.211	PTR	46-211.dc.icann.org
192.0.46.212	PTR	46-212.dc.icann.org
192.0.46.213	PTR	46-213.dc.icann.org
192.0.46.215	PTR	46-215.dc.icann.org
192.0.46.216	PTR	46-216.dc.icann.org
192.0.46.217	A+PTR	46-217.dc.icann.org
192.0.46.218	PTR	46-218.dc.icann.org
192.0.46.219	PTR	46-219.dc.icann.org
192.0.46.221	PTR	46-221.dc.icann.org
192.0.46.223	A+PTR	46-223.dc.icann.org
192.0.46.224	PTR	46-224.dc.icann.org
192.0.46.232	PTR	46-232.dc.icann.org
192.0.46.233	PTR	46-233.dc.icann.org
192.0.46.236	A+PTR	46-236.dc.icann.org
192.0.46.237	PTR	46-237.dc.icann.org
192.0.46.239	A+PTR	46-239.dc.icann.org
192.0.46.241	A+PTR	46-241.dc.icann.org
192.0.46.243	PTR	46-243.dc.icann.org
192.0.46.244	PTR	46-244.dc.icann.org
192.0.46.245	PTR	46-245.dc.icann.org
192.0.46.246	PTR	46-246.dc.icann.org
192.0.46.247	PTR	46-247.dc.icann.org
192.0.46.248	A+PTR	46-248.dc.icann.org
192.0.46.250	PTR	46-250.dc.icann.org
192.0.46.252	A+PTR	46-252.dc.icann.org
192.0.46.254	PTR	46-254.dc.icann.org
192.0.47.7	PTR	www.icann.org
192.0.47.8	PTR	www.iana.org
192.0.47.8	A	ianaftp.vip.icann.org
192.0.47.9	PTR	www.internic.net
192.0.47.12	PTR	redirects.iana.org
192.0.47.13	PTR	tools.iana.org
192.0.47.15	PTR	reports.internic.net
192.0.47.16	PTR	dnscert.com
192.0.47.17	PTR	www.dnso.org
192.0.47.19	PTR	dns.icann.org
192.0.47.20	PTR	members.icann.org
192.0.47.21	PTR	www.atlargestudy.org
192.0.47.22	PTR	securedata.icann.org
192.0.47.24	PTR	ta.icann.org
192.0.47.25	PTR	data.iana.org
192.0.47.26	PTR	forum.icann.org
192.0.47.27	PTR	community.icann.org
192.0.47.30	A+PTR	47-30.dc.icann.org
192.0.47.32	PTR	drupal.icann.org
192.0.47.32	A	www.gnso.icann.org
192.0.47.32	A	drupal.vip.icann.org
192.0.47.35	PTR	research.icann.org
192.0.47.37	PTR	media1.icann.org
192.0.47.39	PTR	rzm.iana.org
192.0.47.40	PTR	newgtlds.icann.org
192.0.47.42	A+PTR	limesurvey.icann.org
192.0.47.44	PTR	archive.icann.org
192.0.47.45	PTR	czdap.icann.org
192.0.47.47	A+PTR	ebero.icann.org
192.0.47.47	A	ebero.vip.icann.org
192.0.47.53	PTR	whois.icann.org
192.0.47.56	PTR	gac.icann.org
192.0.47.57	A+PTR	gtldcomment.icann.org
192.0.47.58	A	gtldresult.vip.icann.org
192.0.47.58	A	gtldresult.icann.org
192.0.47.59	PTR	whois.iana.org
192.0.47.59	A	ianawhois.vip.icann.org
192.0.47.62	PTR	maintenance.icann.org
192.0.47.62	A	drupal.vip.icann.org
192.0.47.62	A	wp.vip.icann.org
192.0.47.63	PTR	47-63.dc.icann.org
192.0.47.64	A	47-64.dc.icann.org
192.0.47.68	A+PTR	47-68.dc.icann.org
192.0.47.71	A+PTR	47-71.dc.icann.org
192.0.47.75	A+PTR	47-75.dc.icann.org
192.0.47.76	A+PTR	47-76.dc.icann.org
192.0.47.83	A+PTR	47-83.dc.icann.org
192.0.47.88	A+PTR	47-88.dc.icann.org
192.0.47.89	A+PTR	stream1.dc.icann.org
192.0.47.92	A	47-92.dc.icann.org
192.0.47.94	A	47-94.dc.icann.org
192.0.47.95	PTR	47-95.dc.icann.org
192.0.47.100	PTR	mm.icann.org
192.0.47.100	A	47-100.dc.icann.org
192.0.47.107	A+PTR	47-107.dc.icann.org
192.0.47.109	A	47-109.dc.icann.org
192.0.47.111	A+PTR	47-111.dc.icann.org
192.0.47.119	PTR	47-119.dc.icann.org
192.0.47.128	PTR	47-128.dc.icann.org
192.0.47.132	A+PTR	iad.xfr.dns.icann.org
192.0.47.132	A	xfr.cjr.dns.icann.org
192.0.47.132	A	47-132.dc.icann.org
192.0.47.133	PTR	47-133.dc.icann.org
192.0.47.141	A+PTR	iad.nexpose.dns.icann.org
192.0.47.147	A	iad01.elastic-search.dns.icann.org
192.0.47.150	A+PTR	iad.hedgehog.dns.icann.org
192.0.47.150	A	47-150.dc.icann.org
192.0.47.151	A+PTR	iad.hedgehogdb.dns.icann.org
192.0.47.151	A	47-151.dc.icann.org
192.0.47.153	A+PTR	iad02.distribution.dns.icann.org
192.0.47.153	A	47-153.dc.icann.org
192.0.47.155	PTR	iad.nsicann.dns.icann.org
192.0.47.156	A+PTR	iad.inaddrarpa.dns.icann.org
192.0.47.156	A	47-156.dc.icann.org
192.0.47.158	A	iad.as112.dns.icann.org
192.0.47.160	PTR	47-160.dc.icann.org
192.0.47.163	A+PTR	iad02.gsi-distribution.dns.icann.org
192.0.47.164	PTR	gsi4.dns.icann.org
192.0.47.165	PTR	47-165.dc.icann.org
192.0.47.166	PTR	47-166.dc.icann.org
192.0.47.169	PTR	47-169.dc.icann.org
192.0.47.171	A+PTR	iad.aservers.dns.icann.org
192.0.47.171	A	47-171.dc.icann.org
192.0.47.173	PTR	iad.cservers.dns.icann.org
192.0.47.173	A	47-173.dc.icann.org
192.0.47.174	A+PTR	47-174.dc.icann.org
192.0.47.181	PTR	47-181.dc.icann.org
192.0.47.182	A	47-182.dc.icann.org
192.0.47.185	A+PTR	47-185.dc.icann.org
192.0.47.189	A+PTR	iad.weather.dns.icann.org
192.0.47.189	A	47-189.dc.icann.org
192.0.47.190	A+PTR	47-190.dc.icann.org
192.0.47.191	PTR	47-191.dc.icann.org
192.0.47.192	A+PTR	47-192.dc.icann.org
192.0.47.195	A+PTR	47-195.dc.icann.org
192.0.47.196	PTR	access1.dc.icann.org
192.0.47.197	A+PTR	access2.dc.icann.org
192.0.47.198	A	access.dc.icann.org
192.0.47.198	A	access-dc.icann.org
192.0.47.200	A	tat.dc.icann.org
192.0.47.204	A+PTR	kbox1.dc.icann.org
192.0.47.205	PTR	mi-vsp.icann.org
192.0.47.206	A+PTR	mi-sentry.icann.org
192.0.47.206	A	47-206.dc.icann.org
192.0.47.206	A	mi-sentry1.dc.icann.org
192.0.47.210	A+PTR	47-210.dc.icann.org
192.0.47.211	PTR	47-211.dc.icann.org
192.0.47.213	A+PTR	47-213.dc.icann.org
192.0.47.216	A+PTR	47-216.dc.icann.org
192.0.47.219	A+PTR	47-219.dc.icann.org
192.0.47.221	PTR	47-221.dc.icann.org
192.0.47.223	A+PTR	47-223.dc.icann.org
192.0.47.224	PTR	47-224.dc.icann.org
192.0.47.225	A+PTR	47-225.dc.icann.org
192.0.47.230	A	47-230.dc.icann.org
192.0.47.232	A+PTR	47-232.dc.icann.org
192.0.47.234	A+PTR	47-234.dc.icann.org
192.0.47.236	PTR	47-236.dc.icann.org
192.0.47.242	PTR	47-242.dc.icann.org
192.0.47.243	A+PTR	47-243.dc.icann.org
192.0.47.246	PTR	ipsec1.dc.icann.org
192.0.47.252	A+PTR	gtm1.dc.icann.org
192.0.47.255	A+PTR	47-255.dc.icann.org