Robtex

Up: 163.121.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 163.121.0.0/21
Down right: 163.121.8.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
163.121.2.2	A+PTR	ns.idsc.gov.eg
163.121.2.3	PTR	ritsec.com.eg
163.121.2.4	PTR	ritsec1.com.eg
163.121.2.5	A	mailer2.idsc.net.eg
163.121.2.5	A	mailer1.idsc.net.eg
163.121.2.5	A	mailer2.openmail.net.eg
163.121.2.16	PTR	riti-mscs.ritsec.com.eg
163.121.2.17	PTR	mba.riti.org
163.121.2.47	A	mailhub.openmail.net.eg
163.121.2.47	A	mailhub.idsc.net.eg
163.121.2.50	A+PTR	mail.out.idsc.net.eg
163.121.2.61	A+PTR	ns1.idsc.gov.eg
163.121.2.63	A+PTR	ns3.idsc.gov.eg
163.121.2.90	A+PTR	otherserver.idsc.gov.eg
163.121.2.103	PTR	ritsec3.com.eg
163.121.2.103	A	mailer6.idsc.net.eg
163.121.2.105	PTR	ritsec2.com.eg
163.121.2.118	A+PTR	mailer8.openmail.net.eg
163.121.2.177	A+PTR	mailhub2.idsc.gov.eg
163.121.2.198	PTR	support.idsc.gov.eg
163.121.2.201	A	nstest.idsc.gov.eg
163.121.2.223	A	scmgateway.idsc.gov.eg
163.121.4.1	A	localrt.idsc.gov.eg
163.121.4.50	A+PTR	mx3.hosted.idsc.net.eg
163.121.4.50	A+PTR	mail.out1.idsc.net.eg
163.121.4.119	A	operator.idsc.gov.eg
163.121.4.123	A	icict.gov.eg
163.121.4.230	A	net-manage.idsc.gov.eg
163.121.4.251	PTR	mx1.hosted.idsc.net.eg
163.121.4.251	A	mx1.egypttennis.com
163.121.4.251	A	mx1.sccourt.gov.eg
163.121.4.253	PTR	mail.arab-ita.org
163.121.5.58	PTR	0-3-0.kazam0.idsc.gov.eg
163.121.6.2	PTR	hosted.idsc.net.eg
163.121.6.2	A	mail.idsc.net.eg
163.121.6.2	A	mail.asush.com.eg
163.121.6.6	A	mx3.hosted.idsc.net.eg
163.121.8.2	A+PTR	kaedge01.idsc.gov.eg
163.121.8.8	PTR	kalink01.idsc.gov.eg
163.121.8.13	PTR	www.presidency.gov.eg
163.121.9.1	PTR	1-9.idsc.gov.eg
163.121.9.147	PTR	147-9.idsc.gov.eg
163.121.10.128	PTR	128-10.idsc.gov.eg
163.121.12.2	A	mail.iti.mcit.gov.eg
163.121.13.161	PTR	governorates.idsc.gov.eg
163.121.15.6	PTR	subnet15.idsc.gov.eg
163.121.15.7	PTR	subnet15.idsc.gov.eg
163.121.15.15	A	ns4.idsc.gov.eg
163.121.15.15	A	ns2.idsc.gov.eg
163.121.15.20	PTR	subnet15.idsc.gov.eg
163.121.15.21	PTR	subnet15.idsc.gov.eg
163.121.15.22	PTR	subnet15.idsc.gov.eg
163.121.15.27	PTR	subnet15.idsc.gov.eg
163.121.15.32	PTR	subnet15.idsc.gov.eg
163.121.15.33	PTR	subnet15.idsc.gov.eg
163.121.15.35	PTR	subnet15.idsc.gov.eg
163.121.15.36	PTR	subnet15.idsc.gov.eg
163.121.15.48	PTR	subnet15.idsc.gov.eg
163.121.15.52	PTR	subnet15.idsc.gov.eg
163.121.15.54	PTR	subnet15.idsc.gov.eg
163.121.15.56	PTR	subnet15.idsc.gov.eg
163.121.15.67	PTR	subnet15.idsc.gov.eg
163.121.15.68	PTR	subnet15.idsc.gov.eg
163.121.15.82	PTR	subnet15.idsc.gov.eg
163.121.15.85	PTR	subnet15.idsc.gov.eg
163.121.15.86	PTR	subnet15.idsc.gov.eg
163.121.15.100	PTR	subnet15.idsc.gov.eg
163.121.15.101	PTR	subnet15.idsc.gov.eg
163.121.15.105	PTR	subnet15.idsc.gov.eg
163.121.15.113	PTR	subnet15.idsc.gov.eg
163.121.15.116	PTR	subnet15.idsc.gov.eg
163.121.15.130	PTR	subnet15.idsc.gov.eg
163.121.15.131	PTR	subnet15.idsc.gov.eg
163.121.15.144	PTR	subnet15.idsc.gov.eg
163.121.15.146	PTR	subnet15.idsc.gov.eg
163.121.15.160	PTR	subnet15.idsc.gov.eg
163.121.15.162	PTR	subnet15.idsc.gov.eg
163.121.15.176	PTR	subnet15.idsc.gov.eg
163.121.15.177	PTR	subnet15.idsc.gov.eg
163.121.15.178	PTR	subnet15.idsc.gov.eg
163.121.15.179	PTR	subnet15.idsc.gov.eg
163.121.15.193	PTR	subnet15.idsc.gov.eg
163.121.15.194	PTR	subnet15.idsc.gov.eg
163.121.15.195	PTR	subnet15.idsc.gov.eg
163.121.15.209	PTR	subnet15.idsc.gov.eg
163.121.15.210	PTR	subnet15.idsc.gov.eg
163.121.15.211	PTR	subnet15.idsc.gov.eg
163.121.15.212	PTR	subnet15.idsc.gov.eg
163.121.15.224	PTR	subnet15.idsc.gov.eg
163.121.15.240	PTR	subnet15.idsc.gov.eg
163.121.15.241	PTR	subnet15.idsc.gov.eg
163.121.15.243	PTR	subnet15.idsc.gov.eg