Robtex

Up: 203.112.192.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 203.112.200.0/22
Down right: 203.112.204.0/22

IP	Type	Hostname
203.112.202.195	A	dns.btcl.net.bd
203.112.202.195	A	dns.bttb.net.bd
203.112.202.196	A	mail2.bttb.net.bd
203.112.204.196	A	smtp2.rab.gov.bd
203.112.204.205	PTR	m.rab.gov.bd
203.112.204.205	A+PTR	mail.rab.gov.bd
203.112.204.205	A+PTR	rabhqsrv1.rab.gov.bd
203.112.204.206	A+PTR	smtp1.rab.gov.bd
203.112.204.206	A	trv.rab.gov.bd
203.112.204.211	A	mail.rab.gov.bd
203.112.205.197	PTR	host197.btcl.net.bd