Robtex

Up: 210.6.96.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 210.6.100.0/23
Down right: 210.6.102.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.6.100.6	A+PTR	210006100006.ctinets.com
210.6.100.11	A	210006100011.ctinets.com
210.6.100.17	A	210006100017.ctinets.com
210.6.100.18	A	210006100018.ctinets.com
210.6.100.29	A+PTR	210006100029.ctinets.com
210.6.100.33	A	210006100033.ctinets.com
210.6.100.34	A	210006100034.ctinets.com
210.6.100.48	A+PTR	210006100048.ctinets.com
210.6.100.56	A	210006100056.ctinets.com
210.6.100.64	A	210006100064.ctinets.com
210.6.100.101	A+PTR	210006100101.ctinets.com
210.6.100.101	A	dns3.macmac.info
210.6.100.101	A	ns3.machi.hk
210.6.100.148	PTR	210006100148.ctinets.com
210.6.100.148	A	ericawong.com
210.6.100.164	A	210006100164.ctinets.com
210.6.100.191	A	210006100191.ctinets.com
210.6.100.194	A	210006100194.ctinets.com
210.6.100.205	A	210006100205.ctinets.com
210.6.100.216	A	210006100216.ctinets.com
210.6.100.221	A+PTR	210006100221.ctinets.com
210.6.100.221	A	shums.com
210.6.100.236	A	210006100236.ctinets.com
210.6.101.30	PTR	210006101030.ctinets.com
210.6.101.31	A	210006101031.ctinets.com
210.6.101.53	A	210006101053.ctinets.com
210.6.101.70	A	210006101070.ctinets.com
210.6.101.123	A	210006101123.ctinets.com
210.6.101.134	A	210006101134.ctinets.com
210.6.101.147	A	wallaceho.no-ip.org
210.6.101.179	A	210006101179.ctinets.com
210.6.101.188	A+PTR	210006101188.ctinets.com
210.6.101.235	A	210006101235.ctinets.com
210.6.101.254	A+PTR	210006101254.ctinets.com
210.6.102.5	A+PTR	210006102005.ctinets.com
210.6.102.24	A	210006102024.ctinets.com
210.6.102.55	A	210006102055.ctinets.com
210.6.102.100	A+PTR	210006102100.ctinets.com
210.6.102.101	A	210006102101.ctinets.com
210.6.102.125	A	210006102125.ctinets.com
210.6.102.131	A	210006102131.ctinets.com
210.6.102.135	PTR	210006102135.ctinets.com
210.6.102.190	A+PTR	210006102190.ctinets.com
210.6.102.253	A	210006102253.ctinets.com
210.6.103.20	A	210006103020.ctinets.com
210.6.103.58	A+PTR	210006103058.ctinets.com
210.6.103.61	A+PTR	210006103061.ctinets.com
210.6.103.70	A	210006103070.ctinets.com
210.6.103.112	PTR	210006103112.ctinets.com
210.6.103.112	A	pbtroop.com
210.6.103.177	A	210006103177.ctinets.com
210.6.103.187	A	mail.innovfinity.com
210.6.103.197	A	210006103197.ctinets.com
210.6.103.217	A	210006103217.ctinets.com
210.6.103.225	A	chenglan.servehttp.com
210.6.103.233	A+PTR	210006103233.ctinets.com