Robtex

Up: 103.248.8.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 103.248.12.0/23
Down right: 103.248.14.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
103.248.12.2	PTR	aggr.intercloud.com.bd
103.248.12.40	PTR	mail.groupm-bd.com
103.248.12.40	PTR	mail.groupmdigital-bd.com
103.248.12.40	PTR	mail.maxus-bd.com
103.248.12.53	PTR	master.intercloud.com.bd
103.248.12.53	A	master.intercloud-bd.net
103.248.12.60	A	dns2.intercloud-bd.net
103.248.12.60	A	dns2.intercloud.com.bd
103.248.12.61	PTR	ns2.intercloud.com.bd
103.248.12.61	A	217.67.118.in-addr.arpa
103.248.12.61	A	12.248.103.in-addr.arpa
103.248.12.62	PTR	netra.intercloud.com.bd
103.248.12.62	PTR	ns1.intercloud.com.bd
103.248.12.62	A	217.67.118.in-addr.arpa
103.248.12.226	A+PTR	pbspsrv3.intercloud.com.bd
103.248.12.226	A	brilliantsip1.intercloud.com.bd
103.248.12.241	A+PTR	cmmssrv1.ogo.com.bd
103.248.12.246	A	cmmssrv2.ogo.com.bd
103.248.13.22	A	dns1.intercloud.com.bd
103.248.13.22	A	dns1.intercloud-bd.net
103.248.13.34	PTR	admissions.bracu.ac.bd
103.248.13.34	A+PTR	usis.bracu.ac.bd
103.248.13.37	A	www.bracu.ac.bd
103.248.13.37	A	old.bracu.ac.bd
103.248.13.38	A	www.bracu.ac.bd
103.248.13.38	A	bracu.ac.bd
103.248.13.68	A+PTR	email.novotel-bd.com
103.248.13.69	A+PTR	email.novocom-bd.com
103.248.13.70	A+PTR	email.mainberg.net
103.248.13.71	PTR	email.intercloud.com.bd
103.248.13.71	A	email.ogo.com.bd
103.248.13.75	A+PTR	email.flynovoair.com
103.248.13.75	A+PTR	email.novoair-bd.com
103.248.13.106	PTR	mail.bd.bbcmediaaction.org
103.248.13.106	A	bd.bbcmediaaction.org
103.248.13.114	A	mxgw.shebanet.net
103.248.13.120	PTR	mail2.shebanet.net
103.248.13.122	A	mx.shebanet.net
103.248.13.138	A	autodiscover.spectrum-bd.com
103.248.13.138	A	mbs.spectrum-bd.com
103.248.13.138	A	mail.spectrum-bd.com
103.248.13.147	A	mail.srl.com.bd
103.248.13.149	A	srl.com.bd
103.248.13.149	A	srlns1.srl.com.bd
103.248.14.122	A	prp.pilgrimdb.org
103.248.14.124	A	www.bidaquickserv.org
103.248.14.124	A	bidaquickserv.org
103.248.14.125	A	osspid.org
103.248.14.125	A	www.osspid.org
103.248.15.1	A	azibtorrent.com
103.248.15.91	A	mail.rifatenterprise.com
103.248.15.91	A	ns2.radioect.com
103.248.15.91	A	ns1.rifatenterprise.com
103.248.15.92	A	mail.ectlink.com
103.248.15.92	A	mail.mrmahmud.com
103.248.15.92	A	e24.com.bd