Robtex

Up: 210.56.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 210.56.20.0/23
Down right: 210.56.22.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.56.20.29	PTR	sngplmail.sngpl.com.pk
210.56.20.94	A	mail.musterhaft.com
210.56.20.163	A+PTR	mail.pap.gov.pk
210.56.20.163	A	mail.punjablaws.gov.pk
210.56.20.192	PTR	mail.beaconet.net
210.56.21.10	A	cish.pk
210.56.21.10	A	pascons.com.pk
210.56.21.130	PTR	mail.apparelco.com
210.56.21.170	A	www.lda.gop.pk
210.56.21.171	A	mail.lda.gop.pk
210.56.21.204	A	humkinar.com.pk
210.56.21.204	A	mail.humkinar.com.pk
210.56.21.204	A	humkinar.pk
210.56.21.242	A+PTR	kap.com.pk
210.56.21.242	A	mail.kap.com.pk
210.56.22.2	A	hosting-out.comsats.pk
210.56.22.3	A+PTR	hosting-out.comsats.pk
210.56.22.6	A+PTR	fsd-filter2.comsats.net.pk
210.56.22.6	A	fsd-filter2.comsats.pk
210.56.22.7	A+PTR	fsd-filter.comsats.net.pk
210.56.22.8	PTR	fsd-filter2.comsats.net.pk
210.56.22.8	A	fsd-filter.comsats.pk
210.56.22.8	A	fsdfilter.comsats.net.pk
210.56.22.9	PTR	relay-out.comsats.pk
210.56.22.9	A	fsd-relay.comsats.net.pk
210.56.22.10	PTR	210-56-22-10.corporate-pools.fsd.comsats.net.pk
210.56.22.10	A	fsd-relay.comsats.net.pk
210.56.22.12	PTR	210.56.22.12.comsats.pk
210.56.22.12	A	ns3.fsd-com.net
210.56.22.12	A	ns1.astarics.com
210.56.22.14	PTR	ns1.astarics.com
210.56.22.54	PTR	sadaqatgroup.net
210.56.22.86	A+PTR	mail.aaspg.com
210.56.22.86	A	aaspg.com
210.56.22.86	A	mail.aaspk.com
210.56.22.114	PTR	mail.sitaratextile.com
210.56.22.114	A	afec.edu.pk
210.56.22.114	A	mail-wl.sitaratextile.com
210.56.22.194	A+PTR	mail.interloop.com.pk
210.56.22.221	PTR	210-56-22-221.corporate-pools.fsd.comsats.net.pk
210.56.23.10	A+PTR	ns1.lhr-com.net
210.56.23.10	A	mail.lhr-com.net
210.56.23.90	A	mail.sihs.org.pk
210.56.23.99	A	mail.wti.com.pk
210.56.23.100	PTR	discozdata.org
210.56.23.101	PTR	pesco.gov.pk
210.56.23.101	A	mail1.mepco.com.pk
210.56.23.101	A	mepco.com.pk
210.56.23.104	A	gepco-mis.com.pk
210.56.23.104	A	mail.gepco-mis.com.pk
210.56.23.104	A	mail.qesco.com.pk
210.56.23.107	A	mail.wti.com.pk
210.56.23.107	A	mail.qesco.com.pk
210.56.23.109	A	ns1.discozdata.org
210.56.23.109	A	discozdata.org
210.56.23.110	A	discozdata.org
210.56.23.110	A	ns2.discozdata.org