Robtex

Up: 213.42.56.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 213.42.60.0/23
Down right: 213.42.62.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.42.60.68	PTR	mail.gtfs-gulf.com
213.42.60.73	PTR	server1.binzayed.ae
213.42.60.80	PTR	mx1.gtfs-gulf.com
213.42.60.179	A+PTR	mail.dormansmith.co.uk
213.42.60.232	PTR	mail.atraco.ae
213.42.60.233	A	atracomail.atraco.ae
213.42.60.234	A+PTR	mail.atraco.ae
213.42.61.182	PTR	mailhost.jraymcdermott.ae
213.42.61.211	PTR	ns1.svitzerwijsmuller.ae
213.42.61.211	A	ourowncontainers.com
213.42.62.141	A	ae.lloydslink.net
213.42.62.152	PTR	www.shuaacapital.ae
213.42.62.152	A	mail.shuaa.org
213.42.62.154	A	shuaa.org
213.42.62.162	PTR	dwtcmail.dwtc.co.ae
213.42.62.162	A	webmail.dwtc.ae
213.42.62.163	A+PTR	archive.dwtc.com
213.42.62.167	PTR	web.dwtc.net
213.42.62.167	A	mail.dtcdistrict.com
213.42.62.167	A	mail.gitexbusinesssolutions.com
213.42.62.170	PTR	eos.healthtrendz.ae
213.42.62.170	PTR	forms.healthtrendz.ae
213.42.62.170	PTR	eos.sweetsmiddleeast.ae
213.42.62.172	PTR	webmail.dwtc.com
213.42.62.173	A+PTR	ads.dwtc.com
213.42.62.174	PTR	careersuae.ae
213.42.62.174	PTR	diahc.ae
213.42.62.174	PTR	dicec.ae
213.42.62.213	PTR	ammcnotes.almousamedical.ae
213.42.62.213	PTR	gdenotes.gulfdrug.ae
213.42.62.213	PTR	mail.al-moosa.com
213.42.62.214	A	dubaihomecare.com
213.42.62.217	A	medigulf.com
213.42.62.228	A+PTR	cadensmail.cadensworth.ae
213.42.63.62	A	dxbmail.bahri.sa
213.42.63.62	A	mail.msml.com
213.42.63.73	PTR	mail1.fosroc.com
213.42.63.213	A+PTR	mail.jotun.ae
213.42.63.213	A	jotundxb.ae
213.42.63.248	A+PTR	mail1.afridi-angell.com
213.42.63.250	A+PTR	mail2.afridi-angell.com
213.42.63.252	A+PTR	mail.afridi-angell.com