Robtex

Up: 210.6.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 210.6.52.0/23
Down right: 210.6.54.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.6.52.63	PTR	210006052063.ctinets.com
210.6.52.98	A+PTR	210006052098.ctinets.com
210.6.52.152	A+PTR	210006052152.ctinets.com
210.6.52.162	A	rukmamohan.com
210.6.52.162	A	rukmaind.com
210.6.52.214	PTR	210006052214.ctinets.com
210.6.52.214	A	ns2.vidus.com.hk
210.6.52.214	A	4scomputer.com
210.6.52.228	A	210006052228.ctinets.com
210.6.53.20	A+PTR	210006053020.ctinets.com
210.6.53.121	A	210006053121.ctinets.com
210.6.53.130	A	www.eihkg.com.hk
210.6.53.130	A	ftp.eihkg.com.hk
210.6.53.201	A	210006053201.ctinets.com
210.6.53.217	A	snookerhome.no-ip.org
210.6.53.220	PTR	210006053220.ctinets.com
210.6.53.220	A	www.maverick-hk.com
210.6.53.250	A	lookaftermegroup.com
210.6.53.250	A	mtc.com.hk
210.6.53.250	A	host8.saas.hk
210.6.54.25	A	210006054025.ctinets.com
210.6.54.58	A	hostmaster.cmwong.com
210.6.54.58	A	*.lazzzy.com
210.6.54.79	A	210006054079.ctinets.com
210.6.54.91	A	210006054091.ctinets.com
210.6.54.103	A+PTR	210006054103.ctinets.com
210.6.54.131	A	210006054131.ctinets.com
210.6.54.163	A	210006054163.ctinets.com
210.6.54.251	A+PTR	210006054251.ctinets.com
210.6.55.18	A	210006055018.ctinets.com
210.6.55.45	A	210006055045.ctinets.com
210.6.55.73	A+PTR	210006055073.ctinets.com
210.6.55.84	A	210006055084.ctinets.com
210.6.55.87	A	210006055087.ctinets.com
210.6.55.128	A	210006055128.ctinets.com
210.6.55.138	A	210006055138.ctinets.com
210.6.55.191	A	210006055191.ctinets.com
210.6.55.203	A	210006055203.ctinets.com