Robtex

Up: 210.3.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 210.3.84.0/23
Down right: 210.3.86.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.3.84.20	PTR	static-bbs-20-84-3-210-on-nets.com
210.3.84.20	A	hgc-b.saberperfect.win
210.3.84.27	PTR	static-bbs-27-84-3-210-on-nets.com
210.3.84.27	A	uc1778.08cdn.com
210.3.85.158	PTR	static-bbs-158-85-3-210-on-nets.com
210.3.85.226	A+PTR	mail.ecs.hk
210.3.85.234	A	mail.gdshk.com
210.3.85.238	A	mail.youlikechina.com
210.3.85.246	A+PTR	email.kygint.com
210.3.86.18	A	www.pingpong.cc
210.3.86.18	A	pingpong.cc
210.3.86.18	A	ftp.pingpong.cc
210.3.86.26	PTR	static-bbs-26-86-3-210-on-nets.com
210.3.86.26	A	mail2.chinaoil.com.hk
210.3.86.26	A	mail2.glasford.com.hk
210.3.86.34	PTR	static-bbs-34-86-3-210-on-nets.com
210.3.86.34	A	hkjinteng.com
210.3.86.42	A+PTR	simonkwan.com.hk
210.3.86.42	A+PTR	mta.simonkwan.com.hk
210.3.86.42	A	www.simonkwan.com.hk
210.3.86.50	A	ex.eurogourmet.com.hk
210.3.86.90	A	mailserv.anway.com.hk
210.3.86.98	A	mail.cpl-cpa.com
210.3.86.102	PTR	static-bbs-102-86-3-210-on-nets.com
210.3.86.102	A	orbital-xch.ddjco.com
210.3.86.102	A	orbital-xch.hk-mw.com
210.3.86.130	PTR	static-bbs-130-86-3-210-on-nets.com.86.3.210.in-addr.arpa
210.3.86.182	A	mail.newoceanhk.com
210.3.86.254	A+PTR	jsg.hk
210.3.86.254	A	gw2.jsg.com.hk
210.3.86.254	A	ns2.jsg.com.hk
210.3.87.38	A+PTR	kingsgroup.com.hk
210.3.87.38	PTR	mail.kingsgroup.com.hk