Robtex

Up: 122.152.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 122.152.48.0/22
Down right: 122.152.52.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
122.152.50.11	A+PTR	mail.gtransnetwork.com
122.152.50.11	A+PTR	mail.easternbd.com
122.152.51.94	A+PTR	mail.bdman.icu
122.152.51.94	A	sunnyapu.xyz
122.152.52.2	A	dns2.iolbd.net
122.152.52.3	A	dns3.iolbd.net
122.152.52.4	A+PTR	mail.iolbd.net
122.152.52.4	A	webmail.iolbd.net
122.152.52.5	A	mrtg.iolbd.net
122.152.52.10	A	mrtg.iolbd.net
122.152.52.25	A+PTR	milter.iolbd.net
122.152.52.36	A	mail.cenkobd.com
122.152.52.39	A	mail.birdsctg.com
122.152.52.39	A	www.birdsctg.com
122.152.52.39	A	birdsctg.com
122.152.52.41	A	srv2.mamtech.net
122.152.52.44	A	gnosticit.com
122.152.52.54	A	mail.mostafagroup.com
122.152.52.147	A	mail.compbang.com
122.152.52.168	A	mx.mostafiz.com
122.152.52.203	A	mail.ritzygroupbd.com
122.152.52.252	A+PTR	mail.pilbd.com
122.152.53.7	A	mail.topconbd.com
122.152.53.30	A	mail.mostafagroup.com
122.152.53.110	A	pildac01.dac.pilship.com
122.152.53.213	A	smtp.rfml-bd.com
122.152.53.213	A	mail.rfml-bd.com
122.152.53.213	A	mail.cem-bd.com
122.152.53.245	A+PTR	mail.merimo.net
122.152.53.245	A	merimo.net
122.152.53.245	A	ns.merimo.net
122.152.54.6	PTR	cwp.microunitedbd.com
122.152.54.6	A	mail.voiceasian.news
122.152.54.6	A	mail.microunitedbd.com
122.152.54.8	A	mail.foursquareinterior.com
122.152.54.8	A	foursquareinterior.com
122.152.54.8	A	greyaus.com
122.152.54.79	A+PTR	mail.cem-bd.com
122.152.54.79	A+PTR	mail.rfpl-bd.com
122.152.54.103	A	binarycoders.org
122.152.54.103	A	ns1.azizulhasandu.com
122.152.54.103	A	ns2.binarycoders.org
122.152.54.238	A	mail2.shahcement.com