Robtex

Up: 121.34.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 121.34.248.0/22
Down right: 121.34.252.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
121.34.248.73	PTR	mail.sekorm.com
121.34.248.73	A	mail.secomtel.com
121.34.248.73	A	mx.sekorm.com
121.34.248.163	A	mail.histan.com
121.34.248.201	A	szjygw.net
121.34.248.205	A	ytjjk.sz.edu.cn
121.34.248.207	A	lhjjk.sz.edu.cn
121.34.248.210	A	www.szjky.edu.cn
121.34.248.210	A	szjky.edu.cn
121.34.248.212	A	szeb.edu.cn
121.34.248.212	A	www.szeb.edu.cn
121.34.248.220	A	szdj.edu.cn
121.34.248.220	A	www.szer.edu.cn
121.34.248.220	A	www.szdj.edu.cn
121.34.248.231	A	www.su-st.edu.cn
121.34.249.33	A	nti56.com
121.34.249.34	A	nti56.com
121.34.249.35	A	sznti.com
121.34.249.41	A	www.nti56.com
121.34.249.105	A	xn--fiqs8sq03aftu.com
121.34.249.113	A	mail.vhcadtools.com
121.34.249.187	A+PTR	yzc.sourcebay.cn
121.34.249.187	A	sourcebay.cn
121.34.249.189	A+PTR	mail.sourcebay.cn
121.34.249.226	A	www.crv.com.cn
121.34.250.2	A	mail.pesicn.com
121.34.250.2	A	lh01.pesicn.com
121.34.250.4	A	www.pesicn.com
121.34.250.29	A+PTR	mx.eoi-lxf.com
121.34.250.29	A+PTR	mail.eoi-lxf.com
121.34.250.29	A	mx2.eoi-lxf.com
121.34.250.65	A	p.poplaser.com
121.34.250.65	A	vpn.ygsm.com
121.34.250.169	A	legacybiblegame.com
121.34.250.211	A	mail.szcaihuang.com
121.34.250.211	A	chmailsrv.szcaihuang.com
121.34.250.211	A	mail.caihuang.com
121.34.250.212	A+PTR	mail.caihuang.cn
121.34.250.216	PTR	mail.caihuang.com
121.34.250.216	PTR	mail.szcaihuang.com
121.34.250.216	A	www.caihuang.com
121.34.250.226	A	notes.foundersz.com
121.34.250.232	A	mail.foundersz.com
121.34.251.18	A	dunlopae.com.cn
121.34.251.137	PTR	mail.yusan.com
121.34.251.138	A+PTR	mail.yusan.com
121.34.251.138	A	mail.lumiz-tinjo.com
121.34.251.138	A	mail.tinjocorp.com
121.34.251.212	PTR	wahhsing.net
121.34.251.235	PTR	litecomm.com
121.34.251.235	A+PTR	liteconn.com.cn
121.34.251.235	A	liteconn.com
121.34.252.7	A+PTR	ptc.crtsz.com.cn
121.34.252.7	PTR	ptc.princeton.com.cn
121.34.252.8	A	ba-300.princeton.com.cn
121.34.252.9	A	dns1.princeton.com.cn
121.34.252.10	A	dns2.princeton.com.cn
121.34.252.93	A	gtmsz.bosera.com
121.34.252.108	A	mail.cinda-sc.com
121.34.252.112	A	4008008899.com
121.34.252.112	A	4008008899.net
121.34.252.116	A+PTR	mail.cindasc.com
121.34.252.120	A	www.cindasc.com
121.34.252.123	A	ctc.cindasc.com
121.34.252.241	A	mail.szcardy.com
121.34.253.57	A	nwch2008.com
121.34.253.98	A	mail.wgcyw.com
121.34.253.138	A	ns1.mangoclub.net
121.34.253.139	A	linkproof.mangocity.com
121.34.253.139	A	ns08.mangocity.com
121.34.253.140	A	domino5.mangocity.net
121.34.253.145	A	mail.365cp.net
121.34.253.161	A	ac.lionfund.com.cn
121.34.253.163	A	mail.lionamc.com
121.34.253.165	A	www.lionfund.com.cn
121.34.253.166	A	mail.lionfund.com.cn
121.34.253.186	PTR	mail.cn.yubantec.com
121.34.253.186	A	dafycredit.com
121.34.253.186	A	dafycredit.cn
121.34.253.187	A	www.dafycredit.com
121.34.253.188	A	mail.dafycredit.com
121.34.253.205	A	travelersz.kerrydatalinks.com
121.34.253.209	A	rad1.phfund.com.cn
121.34.255.168	A	mail.hong-men.com
121.34.255.168	A	mx.hong-men.com
121.34.255.168	A	mail.hongmen.com
121.34.255.169	PTR	mail.hong-men.com
121.34.255.169	PTR	mail.hongmen.com
121.34.255.169	A	hparking.com.cn