Robtex

Up: 121.15.128.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 121.15.136.0/22
Down right: 121.15.140.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
121.15.136.2	A	mintaian.com
121.15.136.123	A	www.tzcpg.com
121.15.136.209	A	lvgemgroup.com.cn
121.15.136.213	A+PTR	mail.lvgem-china.com
121.15.136.213	PTR	lvgem-china.com
121.15.137.65	PTR	gateway.buildup-sz.com
121.15.137.179	A	mail.e95532.com
121.15.137.179	A	mail.cjis.cn
121.15.137.179	A	mail.china-invs.com
121.15.137.231	A	genzon.com.cn
121.15.138.90	A	www.jc.gov.cn
121.15.138.90	A	jc.gov.cn
121.15.139.132	A	mail.china-nea.cn
121.15.139.132	A	q23e.com
121.15.139.133	A	yjnp.com.cn
121.15.139.135	A	ns2.cgnpc.com.cn
121.15.139.140	PTR	jt-e500.cgnpc.com.cn
121.15.139.141	A	bidding.cnpec.com.cn
121.15.139.153	A	www.china-nea.cn
121.15.139.153	A	mail.digiharbor.com
121.15.139.156	A	app.cgnpc.com.cn
121.15.139.157	A	mail.bioladen-verbund.de
121.15.139.170	A	shidaiyangfan.com
121.15.139.172	A	qmt.delegategtm.stcn.com
121.15.140.2	A	szpssy.cn
121.15.140.17	A	www.psgz.cn
121.15.140.55	A	mail.superpich.com
121.15.140.66	PTR	mail.cn.pvmgrp.com
121.15.140.115	A	hamerouter.com
121.15.140.211	PTR	mx1.aicai.com
121.15.140.211	A	mx1.2caipiao.com
121.15.140.211	A	mail.inzwc.com
121.15.140.236	A	jifu.com.cn
121.15.140.237	A	oa.jifu-tech.com
121.15.140.244	A	dns2.szpku.edu.cn
121.15.142.35	A	dns.sgopt.com
121.15.142.35	A	imss.sgopt.com
121.15.142.35	A	dns2.sgopt.com
121.15.142.90	A+PTR	eshl.cn
121.15.142.90	A	mail.eshl.cn
121.15.142.209	A	zrxd.3322.org
121.15.142.209	A	ddns.zrxd.net
121.15.142.212	A	zrxd.net
121.15.142.212	A	jg948ytws.srxemkj.info
121.15.143.66	A	macs.com.cn
121.15.143.66	A	www.macs.com.cn
121.15.143.68	A	mac5.cn
121.15.143.138	A	szmail.osmglobal.com
121.15.143.162	A	mail.cubcn.com
121.15.143.209	A	mail.cultraview.net
121.15.143.210	A	www.cultraview.net
121.15.143.210	A	cultraview.net
121.15.143.221	A	arvatosz.com
121.15.143.229	A	mail.icoolme.com