Robtex

Up: 123.240.0.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 123.240.0.0/19
Down right: 123.240.32.0/19
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
123.240.0.6	A	anyuexue.ddns.net
123.240.2.2	PTR	123-240-2-2.cctv.dy.tbcnet.net.tw
123.240.3.189	A	my104.com.tw
123.240.3.189	A	lkmde.com
123.240.3.189	A	lwbse.com
123.240.8.126	A	onpointlogic.com
123.240.12.2	PTR	123-240-12-2.cctv.dynamic.tbcnet.net.tw
123.240.13.195	PTR	123-240-13-195.cctv.dynamic.tbcnet.net.tw
123.240.14.2	PTR	123-240-14-2.cctv.dynamic.tbcnet.net.tw
123.240.16.1	PTR	123-240-16-1.cctv.dynamic.tbcnet.net.tw
123.240.18.23	A	fuhbao.com.tw
123.240.18.23	A	www.fuhbao.com.tw
123.240.18.193	PTR	123-240-18-193.cctv.dy.tbcnet.net.tw
123.240.18.195	PTR	123-240-18-195.cctv.dy.tbcnet.net.tw
123.240.19.195	PTR	123-240-19-195.cctv.dynamic.tbcnet.net.tw
123.240.20.2	PTR	123-240-20-2.cctv.dynamic.tbcnet.net.tw
123.240.20.123	A	kchengofly.com
123.240.21.2	PTR	123-240-21-2.cctv.dynamic.tbcnet.net.tw
123.240.21.4	PTR	123-240-21-4.cctv.dynamic.tbcnet.net.tw
123.240.25.67	PTR	123-240-25-67.cctv.dynamic.tbcnet.net.tw
123.240.27.1	PTR	123-240-27-1.cctv.dynamic.tbcnet.net.tw
123.240.27.16	A	mail.taxi1420.com
123.240.27.16	A	taxi1420.com
123.240.29.194	PTR	123-240-29-194.cctv.dy.tbcnet.net.tw
123.240.29.244	A	www.kende.com.tw
123.240.30.3	PTR	123-240-30-3.cctv.dynamic.tbcnet.net.tw
123.240.30.64	PTR	123-240-30-64.cctv.dynamic.tbcnet.net.tw
123.240.34.2	PTR	123-240-34-2.cctv.dynamic.tbcnet.net.tw
123.240.35.96	A	ns2.hot123.com.tw
123.240.35.96	A	ns2.kinge.com.tw
123.240.35.96	A	ns2.ipc.com.tw
123.240.36.98	A	kingsuede.info
123.240.36.128	PTR	123-240-36-128.cctv.dynamic.tbcnet.net.tw
123.240.39.1	PTR	123-240-39-1.cctv.dynamic.tbcnet.net.tw
123.240.39.2	PTR	123-240-39-2.cctv.dynamic.tbcnet.net.tw
123.240.39.193	PTR	123-240-39-193.cctv.dynamic.tbcnet.net.tw
123.240.40.192	PTR	123-240-40-192.cctv.dynamic.tbcnet.net.tw
123.240.40.206	A	anatolia.ddns.net
123.240.47.1	PTR	123-240-47-1.cctv.dynamic.tbcnet.net.tw
123.240.47.72	A	as-tudio.com
123.240.53.19	A	mail.cottonpk.com
123.240.53.19	A	www.cottonpk.com
123.240.58.243	A	paco3838.com
123.240.61.99	A	wen-long.tk