Robtex

Up: 210.56.12.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 210.56.12.0/24
Down right: 210.56.13.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.56.12.6	PTR	isb-dc01.waljis.com.pk
210.56.12.6	A	mserver.waljis.com.pk
210.56.12.45	PTR	mail1.jsi.org.pk
210.56.12.45	A	mail2.jsi.org.pk
210.56.12.45	A	www.jsi.org.pk
210.56.12.193	PTR	appliedexcellence.com
210.56.12.219	PTR	isbfil.comsats.net.pk
210.56.12.220	A+PTR	isbfil.comsats.net.pk
210.56.12.222	A+PTR	filter.comsats.net.pk
210.56.12.227	A	lms.vcomsats.edu.pk
210.56.12.230	PTR	210-56-12-230.dsl.isb.comsats.net.pk
210.56.12.230	A	vcomsats.edu.pk
210.56.12.241	A	mail1.readfoundation.org
210.56.12.251	A+PTR	vpssym.comsats.net.pk
210.56.12.254	A+PTR	mailf2.comsats.net.pk
210.56.12.254	A	mailf.comsats.net.pk
210.56.13.12	A	cub.comsats.edu.pk
210.56.13.81	A+PTR	mail.pac.org.pk
210.56.13.85	PTR	mail.pac.org.pk
210.56.13.116	PTR	pcncp21.ncp.edu.pk
210.56.13.123	PTR	ibcast.org.pk
210.56.13.125	PTR	mail.ncp.edu.pk
210.56.13.125	A	student.apms.pk
210.56.13.125	A	apms.pk
210.56.13.126	PTR	pcncp19.ncp.edu.pk
210.56.13.126	A	apms.pk
210.56.13.190	A	lattsat.com
210.56.13.190	A	sjshoesonline.com
210.56.13.210	A+PTR	dhaserver.comsatshosting.com
210.56.13.210	A	jfcbowlingalley.com
210.56.13.210	A	jfccineplex.com