Robtex

Up: 78.100.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 78.100.64.0/22
Down right: 78.100.68.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
78.100.64.66	PTR	email.qatariinvestors.com
78.100.64.66	A+PTR	email1.qatariinvestors.com
78.100.64.66	A	email1.qss.qa
78.100.64.107	A	mail.qatarcoral.com
78.100.64.115	A	mx.qit-qatar.com
78.100.64.146	PTR	dunes-qatar.com
78.100.64.148	A	mail.dunes-qatar.com
78.100.64.210	A+PTR	mail.lht.com.qa
78.100.64.250	A	ns1.ani.org.qa
78.100.64.251	A+PTR	mail.ani.org.qa
78.100.64.254	A+PTR	smtp.ani.org.qa
78.100.65.122	A+PTR	smtp.dohafilminstitute.com
78.100.65.122	A+PTR	smtp.dohatribecafilm.com
78.100.65.134	A+PTR	madinat-almawater.qa
78.100.65.134	A+PTR	www.madinat-almawater.qa
78.100.65.134	A	legacy.barwa.com.qa
78.100.65.135	A	barwapm.net
78.100.65.136	A+PTR	autodiscover.barwa.com.qa
78.100.65.136	A+PTR	mail.barwa.com.qa
78.100.65.137	A+PTR	barwamedia.com.qa
78.100.65.137	A	smtp.barwa.com.qa
78.100.65.138	PTR	sptest.barwa.com.qa
78.100.65.139	PTR	smtp1.barwa.com.qa
78.100.65.162	A+PTR	email.jtc-qa.com
78.100.65.162	A	mx.jtc-qa.com
78.100.65.162	A	*.jtc-qa.com
78.100.65.237	A	www.al-watan.com
78.100.65.237	A	*.al-watan.com
78.100.65.237	A	mail.al-watan.com
78.100.65.251	A+PTR	mail1.cb.gov.qa
78.100.65.252	A+PTR	mail2.cb.gov.qa
78.100.65.253	A+PTR	webmail.cb.gov.qa
78.100.65.254	PTR	cb.qa
78.100.65.254	PTR	creditbureau.qa
78.100.65.254	PTR	www.cb.qa
78.100.66.49	A+PTR	smtp3.ict.gov.qa
78.100.66.115	A	mail.caqatar.com
78.100.66.148	A	sip.dohainstitute.org
78.100.66.177	PTR	talebgroup.com
78.100.66.178	PTR	talebgroup.com
78.100.66.179	PTR	talebgroup.com
78.100.66.180	PTR	talebgroup.com
78.100.66.186	PTR	talebgroup.com
78.100.66.187	PTR	talebgroup.com
78.100.66.188	PTR	talebgroup.com
78.100.66.189	PTR	talebgroup.com
78.100.66.218	A+PTR	mx01.hyattplaza.com
78.100.66.218	A+PTR	mail.junglezone.com.qa
78.100.66.218	A	owa.hyattplaza.com
78.100.66.219	A	userportal.hyattplaza.com
78.100.66.244	PTR	autodiscover.gharnata.sch.qa
78.100.66.244	A+PTR	mail.gharnata.sch.qa
78.100.68.33	A	mail.gondolania.com
78.100.68.33	A	gulfmalldoha.com
78.100.68.33	A	*.gondolania.com
78.100.68.34	PTR	smtp1.btcdoha.com
78.100.68.133	A	mail.zf.org.qa
78.100.68.137	A	vpn.qatarnav.com
78.100.68.177	A+PTR	gta.gov.qa
78.100.68.177	A+PTR	www.gta.gov.qa
78.100.68.234	A+PTR	mail.qrec.gov.qa
78.100.68.238	PTR	www.qrec.gov.qa
78.100.68.238	A+PTR	www3.qrec.gov.qa
78.100.68.238	A+PTR	webservice.qrec.gov.qa
78.100.68.243	A	sip.cb.gov.qa
78.100.69.13	A	mail.barwabank.com
78.100.69.13	A	archive.barwabank.com
78.100.69.14	A	corporate.barwabank.com
78.100.69.98	A+PTR	mail.qjetfuel.com.qa
78.100.69.146	A+PTR	mail.queenmedical.com
78.100.69.218	A+PTR	ac.mofa.gov.qa
78.100.69.220	A	*.3dvrm.com
78.100.69.222	A	mail2.mofa.gov.qa
78.100.69.228	A	matmail.ccc.com.qa
78.100.70.27	A+PTR	aras-carriers.gov.qa
78.100.70.27	PTR	www.aras-carriers.gov.qa
78.100.70.83	A+PTR	autodiscover.tanween.com
78.100.70.83	A+PTR	mail.tanween.com
78.100.70.84	A+PTR	smtp1.tanween.com
78.100.70.116	A+PTR	smtp01.moc.gov.qa
78.100.70.116	A	smtp02.dohadramaaward.qa
78.100.70.116	A	smtp02.ycqatar.qa
78.100.70.117	PTR	smtp01.mcs.gov.qa
78.100.70.121	A	www.moc.gov.qa
78.100.70.126	A	dohabookfair.qa
78.100.70.126	A	dohabookfair.com
78.100.70.126	A	www.dohabookfair.qa
78.100.70.130	PTR	email1.qatariinvestors.com
78.100.70.130	A+PTR	email.qatariinvestors.com
78.100.70.130	A	email.qss.qa
78.100.70.132	A	email.almisnad.com
78.100.70.146	PTR	gw.qstrs.com
78.100.70.147	A+PTR	vpn.qstrs.com
78.100.70.148	A+PTR	gw1.qstrs.com
78.100.70.162	PTR	mail.alfaisalholding.com
78.100.70.162	A	mail.aamal.com.qa
78.100.70.173	A	arabsontopoftheworld.com
78.100.70.187	A	donation.eidcharity.net.qa
78.100.70.187	A	eidcharity.net.qa
78.100.70.187	A	www.eidcharity.net.qa
78.100.70.190	A	ns1.eidcharity.net.qa
78.100.70.226	A	mail.jumboqatar.com
78.100.70.228	A	mail.sparkqatar.com
78.100.70.230	PTR	mail.jumboqatar.com
78.100.70.230	A	mail.sparkqatar.com
78.100.70.241	PTR	mail1.family.com.qa
78.100.70.241	A	mail1.ffc.qa
78.100.70.241	A	mail1.family.qa