Robtex

Up: 203.124.144.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.124.144.0/23
Down right: 203.124.146.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.124.144.1	A	thecityschools.edu.pk
203.124.144.12	PTR	meghdoot.mastek.com
203.124.144.12	A	everest.majesco.com
203.124.144.101	A	lp_spz.masteknet.com
203.124.144.195	A	exchange.effortbpo.com
203.124.144.195	A	mail1.effortbpo.com
203.124.144.196	A	ftp2.effortbpo.com
203.124.144.202	A	exchange.techsupportworldwide.com
203.124.144.210	A+PTR	mail.1point1.in
203.124.144.210	A+PTR	mail.onepointone.in
203.124.144.210	A	onepointone.in
203.124.144.216	A	onepoint1.org
203.124.144.216	A	mail.onepointone.co
203.124.144.216	A	1point1.net
203.124.145.131	PTR	mail.gateway-ip.com
203.124.146.234	PTR	ns1.uhcindia.net
203.124.146.234	A	parekhhealth.net
203.124.146.234	A	parekhhealth.com
203.124.146.235	PTR	ns2.uhcindia.net
203.124.146.235	A	parekhhealth.net
203.124.146.235	A	parekhhealth.com
203.124.146.236	PTR	mail.uhcindia.com
203.124.146.236	A	mail.parekhhealth.org
203.124.146.236	A	mail.parekhhealth.net
203.124.147.30	PTR	mail.mwti.net
203.124.147.52	A+PTR	mlrly1.mail.yesbank.in
203.124.147.53	PTR	mlrly1.mtaj1.com
203.124.147.54	PTR	mlrly2.mail.yesbank.in
203.124.147.54	A	yesbankemail.in
203.124.147.57	PTR	relianceone.net
203.124.147.58	PTR	mlrly.pmtaj.com
203.124.147.59	PTR	juvrly.com
203.124.147.59	A+PTR	email.3i-infotech.com
203.124.147.59	PTR	list.juvrly.com
203.124.147.60	PTR	mlrly1.relyr.com
203.124.147.62	A+PTR	mlrly2.mail.crisil.com
203.124.147.62	PTR	mlrly3.mail.crisil.com
203.124.147.96	PTR	mail3.mwti.net
203.124.147.155	A	mail.loxim.com
203.124.147.155	A	mail.jaychem.com
203.124.147.171	A	exrelay2.microinks.com
203.124.147.172	A+PTR	exrelay3.microinks.com