Robtex

Up: 103.192.152.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 103.192.156.0/23
Down right: 103.192.158.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
103.192.156.1	A+PTR	dns1.intranetbd.net
103.192.156.3	A	cityonlinebd.net
103.192.156.3	A	mail.aaisbd.com
103.192.156.3	A	intranetbd.com
103.192.156.6	A	mail.flowerbd.net
103.192.156.6	A	ibd.net.bd
103.192.156.6	A	kplconstructionbd.com
103.192.156.7	PTR	mail.cms-bd.net
103.192.156.8	A	aaisbd.com
103.192.156.9	A+PTR	mail.agitatorbd.com
103.192.156.10	A+PTR	mail.miraebd.net
103.192.156.10	A	mail.ibdplex.net
103.192.156.11	PTR	mail.ibdcommunication.net
103.192.156.11	PTR	mail.cityonlinebd.net
103.192.156.12	A	mail.vapglobalconsultancy.com
103.192.156.38	A	mail.lucentbd.com
103.192.156.38	A	lucentbd.com
103.192.156.77	PTR	host77.intranetbd.net
103.192.156.77	A	ns2.satunnel.com
103.192.156.77	A	satunnel.com
103.192.156.98	PTR	host98.intranetbd.net
103.192.156.98	A	ns3.innoglobe.net
103.192.156.171	PTR	host171.cityonlinebd.net
103.192.156.236	PTR	host236.intranetbd.net
103.192.157.2	A	dns2.intranetbd.net
103.192.157.2	A	dns2.intranetbd.com
103.192.157.14	A+PTR	mail.dhakaplex.net
103.192.157.14	PTR	103.192.157.14.intranetbd.net
103.192.157.35	PTR	host35.cityonlinebd.net
103.192.157.35	A	tripcartbd.com
103.192.157.36	PTR	host36.cityonlinebd.net
103.192.157.36	A	buytickets.com.bd
103.192.157.38	PTR	host38.cityonlinebd.net
103.192.157.38	A	www.al-gazi.com
103.192.157.38	A	www.best4fly.com
103.192.157.39	PTR	host39.cityonlinebd.net
103.192.157.39	A	www.mytripperz.com
103.192.157.40	PTR	host40.cityonlinebd.net
103.192.157.40	A	www.latiftravels.com
103.192.157.58	PTR	host58.cityonlinebd.net
103.192.157.58	A	www.flyqicket.com
103.192.158.6	PTR	host-36-6.cityonlinebd.net
103.192.158.186	PTR	103-192-158-186.intranetbd.net
103.192.159.30	PTR	103.192.159.30.intranetbd.net
103.192.159.82	PTR	host-36-82.cityonlinebd.net
103.192.159.82	A	ns5.innoglobe.net
103.192.159.82	A	akashtrip.com
103.192.159.83	PTR	host-36-83.cityonlinebd.net
103.192.159.83	A	ns4.innoglobe.net
103.192.159.244	PTR	103-192-158-244.intranetbd.net