Robtex

Up: 123.48.0.0/13
Can't show all results, try to descend to a more specific CIDR
Down left: 123.52.0.0/15
Down right: 123.54.0.0/15
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
123.52.0.0	PTR	0.0.52.123.broad.zz.ha.dynamic.163data.com.cn
123.52.4.2	PTR	2.4.52.123.broad.zz.ha.dynamic.163data.com.cn
123.52.5.205	A	xqit1.vicp.net
123.52.16.141	A	1c457f2703.iask.in
123.52.18.233	A	7888.co
123.52.39.86	A	cmjava.com
123.52.40.2	PTR	2.40.52.123.broad.zz.ha.dynamic.163data.com.cn
123.52.41.2	A	hnocse.com
123.52.41.59	A	zhcdyfw.com
123.52.43.13	A	zzxxembf.com
123.52.45.113	A	rjkn.win
123.52.46.83	A	motong168.com
123.52.54.96	A	baixiangfood.com
123.52.55.37	A	wuduoshanhuo.com
123.52.55.65	A	hndhi.com
123.52.73.222	A	zzxulun.com
123.52.81.250	A	www.hnjttz.com
123.52.93.183	A	5i5share.com
123.52.95.87	A	ctns.zynews.com
123.52.99.18	A	mail.xt0371.com
123.52.101.129	A	mail.mzqq.win
123.52.105.76	A	hnzkca.com
123.52.112.83	A	lechisoft.com
123.52.125.9	A	www.wdqh.com
123.52.130.38	PTR	boobooke.com
123.52.131.9	A	ycxdygz.com
123.52.131.166	A	ycsyzx.cn
123.52.134.55	A	wanxianggouwu.com
123.52.136.140	A	xn--j7qs1kjxqlh2b.cn
123.52.136.150	A	xn--sqrw7qgwi27g63y9ndetql8m.com
123.52.144.2	PTR	2.144.52.123.broad.ly.ha.dynamic.163data.com.cn
123.52.145.46	A	lftd311.com
123.52.153.98	A	home.itopsoftware.com
123.52.153.149	A	lyjpsolar.com
123.52.180.229	A	cyq01.com
123.52.189.35	A	www.huaxiacs.com.a.bdydns.com
123.52.189.35	A	hengyexing.com.cn
123.52.189.35	A	bjxsyz.com
123.52.202.174	A	398688608.com
123.52.202.196	A	mine.chinaenter.cn
123.52.203.52	A	www.pysyg.com
123.53.0.0	PTR	0.0.53.123.broad.ay.ha.dynamic.163data.com.cn
123.53.26.39	A	aecars.cn
123.53.32.65	A	intelvideo.net
123.53.72.156	A	o0o0o0o.tk
123.53.87.212	A	18530686989.com
123.53.110.22	A	xhsdnxd002.com
123.53.110.217	A	xbhsm.com
123.53.118.30	A	keeyy.com
123.53.128.3	PTR	3.128.53.123.broad.xc.ha.dynamic.163data.com.cn
123.53.182.193	A	liveful.sobeycache.com.w.alikunlun.net
123.53.182.194	A	liveful.sobeycache.com.w.alikunlun.net
123.53.182.224	A	down.3h6x.com.w.alikunlun.com
123.53.182.224	A	cmsstatic.huya.com.w.kunlunhuf.com
123.53.182.224	A	down2.qzhiye.com.w.alikunlun.com
123.53.182.225	A	down.3h6x.com.w.alikunlun.com
123.53.182.225	A	cmsstatic.huya.com.w.kunlunhuf.com
123.53.182.226	A	down.3h6x.com.w.alikunlun.com
123.53.182.226	A	cmsstatic.huya.com.w.kunlunhuf.com
123.53.182.227	A	down.3h6x.com.w.alikunlun.com
123.53.182.227	A	cmsstatic.huya.com.w.kunlunhuf.com
123.53.182.228	A	down.3h6x.com.w.alikunlun.com
123.53.182.228	A	cmsstatic.huya.com.w.kunlunhuf.com
123.53.182.228	A	down2.qzhiye.com.w.alikunlun.com
123.53.182.229	A	down.3h6x.com.w.alikunlun.com
123.53.182.229	A	cmsstatic.huya.com.w.kunlunhuf.com
123.53.182.230	A	down.3h6x.com.w.alikunlun.com
123.53.182.230	A	cmsstatic.huya.com.w.kunlunhuf.com
123.53.182.230	A	down2.qzhiye.com.w.alikunlun.com
123.53.182.231	A	down.3h6x.com.w.alikunlun.com
123.53.182.231	A	cmsstatic.huya.com.w.kunlunhuf.com
123.53.182.231	A	down2.qzhiye.com.w.alikunlun.com
123.53.197.205	A	zll855.no-ip.org
123.53.215.203	A	pdswlxx.com
123.53.242.27	A	fangyuanguanggao.com
123.54.0.7	A	neojordan.com
123.54.1.63	A	sqhxyly.com
123.54.1.88	A	bierside.com
123.54.1.164	A	sqxdjy.com
123.54.5.191	A	sqhz.net
123.54.5.195	A	ksenergy.net
123.54.5.201	A	hualianguomao.com
123.54.6.76	A	chinaweihong.com.cn
123.54.10.4	A	leangsolar.com
123.54.13.77	A	xianshuai.com.cn
123.54.71.199	A	onmedia.e-gooo.com
123.54.71.200	A	ehbao.cn
123.54.71.200	A	xqcm.cn
123.54.71.202	A	sdweb.e-gooo.com
123.54.104.60	A	hetianyuba.com
123.54.129.116	A	9ifa.com
123.54.129.116	A	feoom.com
123.54.131.144	A	ddnstoip.com
123.54.177.83	A	yuntongcp.com
123.54.251.216	A	zmdsc.com
123.55.0.0	PTR	0.0.55.123.broad.ly.ha.dynamic.163data.com.cn
123.55.8.2	PTR	2.8.55.123.broad.ly.ha.dynamic.163data.com.cn
123.55.12.2	PTR	2.12.55.123.broad.ly.ha.dynamic.163data.com.cn
123.55.20.169	A	123end.com
123.55.24.64	A	tianzhangxny.com
123.55.25.125	A	renqifu.com
123.55.75.43	A	huolongku.com
123.55.76.98	A	xxnthly.com
123.55.79.214	A	musiczone.net.cn
123.55.84.69	A	fengyunchao.com
123.55.118.59	A	xxnw.gov.cn
123.55.118.59	A	www.xxnw.gov.cn
123.55.118.60	A	tel.365960.com
123.55.118.66	A	365guagua.com
123.55.120.4	A	mail.heqifd.com
123.55.120.4	A	heqifd.com
123.55.143.173	A	yunsiyingyu.com
123.55.143.206	A	passport.kfsmartct.com
123.55.194.231	A	1890tv.net
123.55.197.7	A	huandami.com
123.55.198.135	A	zhuodike123.com
123.55.200.133	A	xbjs.cn
123.55.200.133	A	shjpx.com
123.55.200.134	A	86.211919.com
123.55.201.56	A	carvemail.carve.com.cn
123.55.223.116	A	didilaile.com
123.55.248.40	A	shokamoto.com
123.55.248.55	A	wopower.com