Robtex

Up: 220.227.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 220.227.56.0/22
Down right: 220.227.60.0/22

IP	Type	Hostname
220.227.56.211	A	mx1.praxistechnologies.net
220.227.56.225	PTR	nirmalbang.com
220.227.56.225	PTR	mailservre.nirmalbang.com
220.227.56.225	PTR	webmail.nirmalbang.com
220.227.57.149	PTR	mailsvr.dicitexdecor.com
220.227.59.2	PTR	mx.alkem.com
220.227.59.2	PTR	mx.alkem.co.in
220.227.59.3	PTR	mail.alkem.com
220.227.59.3	A	ns.alkem.com
220.227.59.4	A	ns1.alkemonline.com
220.227.59.7	A	nikkifinejewellery.com
220.227.59.7	A	alkemhealthcare.com
220.227.59.8	PTR	mail.alkem.com
220.227.59.8	PTR	mail.alkem.in
220.227.59.8	PTR	mail.alkem.co.in
220.227.59.9	A	mx.alkem.co.in
220.227.59.9	A	mail.travelonservices.com
220.227.59.9	A	mail.alkemhealthscience.com
220.227.59.11	A	alkem.in
220.227.59.67	A	lp3.datamatics.com
220.227.59.72	A+PTR	ns3.datamatics.com
220.227.59.74	PTR	email.datamatics.com
220.227.59.75	PTR	mail2.datamatics.com
220.227.59.116	A	datamatics.co.in
220.227.60.4	A+PTR	mail.rocketplus.net
220.227.60.11	A+PTR	ns3.relianceada.com
220.227.60.12	A+PTR	ns4.relianceada.com
220.227.60.13	PTR	mahesh.ecirclenext.net
220.227.60.13	PTR	mail.ecirclenext.net
220.227.60.17	PTR	flpip.myreliancemail.com
220.227.60.17	A+PTR	flpip.relianceada.com
220.227.60.18	A+PTR	flp050.relianceada.com
220.227.60.104	A	myreliancemail.com
220.227.60.104	A	www.myreliancemail.com
220.227.60.120	PTR	flpip.relianceada.com
220.227.60.170	PTR	myreliancemail.com
220.227.60.171	A+PTR	flpip.myreliancemail.com
220.227.62.116	PTR	post.core-edutech.com
220.227.62.131	PTR	in.v2solutions.com
220.227.62.226	PTR	mail.bigadda.biz
220.227.63.30	A	ddecor.com
220.227.63.40	PTR	marketcity.in
220.227.63.83	A+PTR	mail1.intaspharma.com
220.227.63.83	A	mail1.intasbiopharma.co.in
220.227.63.130	A	roeservice.com
220.227.63.234	PTR	acslimited.com