Robtex

Up: 89.211.40.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 89.211.40.0/23
Down right: 89.211.42.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
89.211.40.18	A+PTR	tomas-jgcpearlgtl.com.qa
89.211.40.18	A+PTR	www.tomas-jgcpearlgtl.com.qa
89.211.40.27	A+PTR	mail.jgcpgtl-site.com.qa
89.211.40.66	A+PTR	smtp3.travelport.qa
89.211.40.66	A+PTR	smtp3.galileo.com.qa
89.211.40.66	A+PTR	smtp3.mannai.com.qa
89.211.40.91	A	barwaerp.com
89.211.40.93	PTR	smtp1.barwa.com.qa
89.211.40.98	A+PTR	mailgw3.ahlibank.com.qa
89.211.40.99	A+PTR	webmail.ahlibank.com.qa
89.211.40.101	A	webemail.ahlibank.com.qa
89.211.40.108	A	mailgw4.ahlibank.com.qa
89.211.40.153	A+PTR	mei.gov.qa
89.211.40.153	A+PTR	www.mei.gov.qa
89.211.40.154	A+PTR	mail.mei.gov.qa
89.211.40.155	A+PTR	smtp.mei.gov.qa
89.211.40.178	A	mail.laliveinqatar.com
89.211.40.202	A	valuestrust.com
89.211.40.227	A+PTR	ns1.qna.org.qa
89.211.40.228	A	qnaphoto.org
89.211.40.242	A+PTR	smtp3.qag.gov.qa
89.211.40.246	A+PTR	ns1.qag.gov.qa
89.211.40.246	A+PTR	smtp2.qag.gov.qa
89.211.40.247	A+PTR	ns2.qag.gov.qa
89.211.40.248	A	mail.qag.gov.qa
89.211.40.249	A+PTR	smtp.qag.gov.qa
89.211.40.250	A+PTR	smtp1.qag.gov.qa
89.211.42.0	A	awqaf.gov.qa
89.211.42.12	PTR	mail.nhrc.org.qa
89.211.42.30	A+PTR	awqafdns.awqaf.gov.qa
89.211.42.35	A	qatsecure.clydeco.com.qa
89.211.42.49	A	qatariprojects.net
89.211.42.49	A	qatariprojects.com
89.211.42.52	A	citygatenewcairo.com
89.211.42.52	A	www.citygatenewcairo.com
89.211.42.52	A	www.qetaifanislands.qa
89.211.42.53	A	www.lusail.com
89.211.42.59	A	mail1.qcert.me
89.211.42.59	A	qcert.me
89.211.42.60	A	mail.qcert.me
89.211.42.154	PTR	mail.arabtecqatar.com
89.211.42.155	PTR	mail.arabtecqatar.com
89.211.42.165	A+PTR	ihost.almanagroup.com
89.211.42.165	A	webmail.almanagroup.com
89.211.42.172	PTR	aldarmail.aldarexchange.com
89.211.42.227	A+PTR	mail.qcci.org
89.211.42.227	A	webmail.qcci.org
89.211.42.244	A+PTR	mail.lacigalehotel.com
89.211.43.3	PTR	mail.alarab.com.qa
89.211.43.6	PTR	alarab.com.qa
89.211.43.6	PTR	www.alarab.com.qa
89.211.43.18	A+PTR	ns.gsdp.gov.qa
89.211.43.19	A+PTR	wwwtest1.qix.gov.qa
89.211.43.21	PTR	www.qix.gov.qa
89.211.43.23	A+PTR	mail.gsdp.gov.qa
89.211.43.29	PTR	test.qix.gov.qa
89.211.43.36	A+PTR	mail.amwalqatar.com.qa
89.211.43.37	A+PTR	amwalqatar.com.qa
89.211.43.37	PTR	www.amwalqatar.com.qa
89.211.43.59	A+PTR	autodiscover.tasweeq.com.qa
89.211.43.59	A+PTR	mail.tasweeq.com.qa
89.211.43.60	A+PTR	inbound1.tasweeq.com.qa
89.211.43.61	A+PTR	inbound2.tasweeq.com.qa
89.211.43.155	A+PTR	qtelipt-cb.com.qa
89.211.43.156	PTR	qtelipt.com.qa
89.211.43.171	A	web1.moe.gov.qa
89.211.43.172	A	webmail.moe.gov.qa
89.211.43.172	A	moemail.moe.gov.qa
89.211.43.250	PTR	qfh.com.qa
89.211.43.253	A	mail.qfh.com.qa