Robtex

Up: 180.211.164.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 180.211.164.0/25
Down right: 180.211.164.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
180.211.164.71	A+PTR	smtpa.dgfi.gov.bd
180.211.164.71	A	mx.dgfi.gov.bd
180.211.164.71	A	ns1.dgfi.gov.bd
180.211.164.72	PTR	smtpb.dgfi.gov.bd
180.211.164.72	A	mx.dgfi.gov.bd
180.211.164.73	A+PTR	mail.dgfi.gov.bd
180.211.164.73	A	webmail.dgfi.gov.bd
180.211.164.78	PTR	mail.dgfi.gov.bd