Robtex

Up: 103.6.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 103.6.48.0/23
Down right: 103.6.50.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
103.6.48.34	A	tak-bo.com
103.6.48.34	A	mail.tak-bo.com
103.6.48.34	A	www.tak-bo.com
103.6.48.170	A	shinamitsu.co.jp
103.6.48.170	A	utfa.org.hk
103.6.48.170	A	pop.jasonofficial.net
103.6.48.182	A+PTR	mdncapital.com
103.6.48.182	A	mail.mdncapital.com
103.6.48.194	A	mail.tqmisl.com.hk
103.6.49.2	A+PTR	mx1.csg-int.com
103.6.49.2	A	www.entface.com
103.6.49.2	A	entface.com
103.6.49.3	PTR	mx2.csg-int.com
103.6.49.3	A	www.entface.com
103.6.49.3	A	entface.com
103.6.49.8	A	www.ddoc.com
103.6.49.8	A	ddoc.com
103.6.49.9	A	www.ddoc.com
103.6.49.9	A	ddoc.com
103.6.49.36	A	dns3.netsoft.net
103.6.49.42	A	demo1.netsoft.net
103.6.49.42	A	bmis.netsoft.net
103.6.49.42	A	search.mdco.netsoft.net
103.6.49.77	PTR	mail.baum-essex.com.hk
103.6.49.77	A	baum-essex.com.hk
103.6.49.90	A	chanceuxbd.com
103.6.49.98	A	mail2.mayer.com.hk
103.6.49.98	A	mail1.mayer.com.hk
103.6.49.114	A	mail.vivachina.hk
103.6.49.115	A	www.vivachina.hk
103.6.49.130	PTR	mail.tianda.com
103.6.49.150	A	acetopbms.com
103.6.49.158	PTR	mail.evd.com.hk
103.6.49.158	A	mx1.tenzos.com
103.6.49.158	A	triple8group.com
103.6.49.182	A	mail.bb-yeah.com
103.6.49.182	A	mail.taiwanbobo.com
103.6.49.182	A	mail.twinlittlefrogs.com
103.6.49.190	A	www.keenpack.cn
103.6.49.194	A	pop.geelyauto.com.hk
103.6.49.194	A	pop3.geelyauto.com.hk
103.6.49.222	A+PTR	mail2.plusrtech.com
103.6.49.222	A+PTR	mail2.plusretech.com
103.6.49.222	A	mail2.o2o-loyalty.com
103.6.49.229	A	www.fongs.com
103.6.49.233	A+PTR	mail3.fongs.com
103.6.49.241	A	ns2.fongs.com
103.6.49.254	A	ser2.ucyber.net
103.6.49.254	A	mail.localhostdomain.com
103.6.50.146	A	ns3.login.com.hk
103.6.50.150	A	c.best-view-root-servers.net
103.6.50.158	A	catsndogshk.com
103.6.50.170	A	smtp.marsland.com.hk
103.6.50.178	A	mail.jameslawcybertecture.com
103.6.51.3	A	mailgate.iacvahk.org
103.6.51.3	A	mailgate.casdaq-hk.com
103.6.51.3	A	mailgate.gca-valuation.com
103.6.51.34	A+PTR	mail.hongai.edu.hk
103.6.51.34	A	hongai.edu.hk
103.6.51.35	A	www2.hongai.edu.hk
103.6.51.40	A	ns.urban.com.hk
103.6.51.41	A	owa.urban.com.hk
103.6.51.43	A	owa.fse.com.hk
103.6.51.68	A	longyoutianxia.com
103.6.51.68	A	www.longyoutianxia.com
103.6.51.81	A	8fwf09.mmqnq8.com
103.6.51.81	A	longyoutianxia.net
103.6.51.115	A	www.atlinks.com
103.6.51.142	A+PTR	hksl.com.hk
103.6.51.142	A	www.hksl.com.hk
103.6.51.142	A	mail.hksl.com.hk
103.6.51.162	A	mail.sunluen.com
103.6.51.162	A	mail.sunluen.com.hk
103.6.51.162	A	sunluen.com
103.6.51.168	PTR	sunluen-cn.com
103.6.51.170	PTR	mail.genesis-union.com
103.6.51.170	A	genesis-union.com
103.6.51.186	A+PTR	mail.rgm-hk.com
103.6.51.186	A	regcd.com
103.6.51.186	A	rgm-hk.com