Robtex

Up: 168.187.72.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 168.187.72.0/24
Down right: 168.187.73.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
168.187.72.9	PTR	srv62.markaz.com
168.187.72.10	A+PTR	mail.markaz.com
168.187.72.18	PTR	master.k-cc.com.kw
168.187.72.18	A	remitmoney2anywhere.com
168.187.72.34	PTR	dns1.kems.net
168.187.72.51	A+PTR	mail.actionkuwait.com
168.187.72.51	A	webmail.mri-actionrecruitment.com
168.187.72.51	A	webmail.iclkuwait.com
168.187.72.52	A	mail2.actionkuwait.com
168.187.72.55	PTR	mail.kdlkw.com
168.187.72.56	PTR	web.kdlkw.com
168.187.72.131	A+PTR	mail.alaman.com.kw
168.187.72.162	A	dns.ksrc.com.kw
168.187.72.162	A	ksrc.com.kw
168.187.72.181	A	uaeexchange.com.kw
168.187.72.186	A	liveremit.com
168.187.72.186	A	mail.remitmoney2anywhere.com
168.187.73.2	PTR	mail.injazzat.com
168.187.73.20	A	nblsi.com
168.187.73.35	A+PTR	mail.gsh.com.kw
168.187.73.37	A	mail.gc.com.kw
168.187.73.45	PTR	mail.masaa.com.kw
168.187.73.45	A	masaa.com.kw
168.187.73.46	A	alaman.com.kw
168.187.73.46	A	mail.sh.com.kw
168.187.73.47	A	mail.anan.com.kw
168.187.73.47	A	mail.anan.com
168.187.73.59	PTR	mail.shre.com.kw
168.187.73.61	A	www.sh.com.kw
168.187.73.61	A	sh.com.kw
168.187.73.62	A+PTR	mail.sh.com.kw
168.187.73.134	PTR	mail.hikwt.com