Robtex

Up: 203.145.128.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 203.145.136.0/22
Down right: 203.145.140.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.145.136.3	PTR	hq.sahara.co.in
203.145.136.3	PTR	mail.hqga.sahara.co.in
203.145.136.52	PTR	imss.bhelpem.co.in
203.145.136.53	PTR	bhelpem.co.in
203.145.136.87	A	dns3.mail.bharatpetroleum.in
203.145.138.224	PTR	raschd224.138.145.203.mantraonline.com
203.145.139.213	A+PTR	mail.studentnest.net
203.145.140.86	A	packpluz.com
203.145.141.162	PTR	mail.aai.aero
203.145.141.162	A	dp1.fastdnsnetwork.com.airportsindia.org.in
203.145.141.162	A	dp2.fastdnsnetwork.com.airportsindia.org.in
203.145.141.167	A	*.htmlmail.aai.aeromail.aai.aero
203.145.141.170	PTR	legacy.aai.aero
203.145.141.174	PTR	etender.aai.aero