Robtex

Up: 203.76.128.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 203.76.128.0/22
Down right: 203.76.132.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.76.128.98	A	mail2.emersonclimatetechindia.com
203.76.128.126	A	rptechindia.co.in
203.76.128.164	A	lp1.suzlon.com
203.76.128.175	PTR	suzlonsmtp.suzlon.com
203.76.128.180	A+PTR	email1.suzlon.com
203.76.128.180	A	mail1.tantiholdings.com
203.76.128.180	A	mailx1.suzlon.com
203.76.129.60	PTR	agimail.agi-glaspac.com
203.76.129.60	PTR	agimail.agiclozures.com
203.76.130.77	A+PTR	tikona.infinetmessaging.com
203.76.130.77	A	infinetmessaging.com
203.76.131.66	A+PTR	firewall.sss-india.com
203.76.131.68	PTR	mail1.sss-india.com
203.76.131.69	A+PTR	mail.sss-india.com
203.76.131.250	PTR	mail.amararaja.co.in
203.76.132.105	PTR	til92.hclinfinet.com
203.76.132.105	A	mail.shellindialubes.com
203.76.132.105	A	mail.spicebpo.in
203.76.132.109	PTR	til86.hclinfinet.com
203.76.132.121	A	mail.ifciltd.com
203.76.132.187	PTR	flexindustriesltd.com
203.76.132.187	A	mail.flexindustriesltd.com
203.76.132.188	A	smtp.flexindustriesltd.com
203.76.134.146	A+PTR	mail1.bluestarindia.com
203.76.134.149	A	ftp.bluestarindia.com
203.76.134.149	A	ns2.bluestarindia.com
203.76.134.149	A	bluestarindia.co.in
203.76.135.78	A	thehclgroup.org
203.76.135.78	A	kiranartmuseum.in
203.76.135.78	A	kirannadar.com
203.76.135.180	PTR	smtpdelhi.petronetlng.com
203.76.135.180	A	smtpdelhi.petronet.co.in
203.76.135.251	PTR	mail.planmanconsulting.com