Robtex

Up: 210.3.168.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 210.3.172.0/23
Down right: 210.3.174.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.3.172.38	PTR	static-bbs-38-172-3-210-on-nets.com
210.3.172.38	A	mail2.partner.hk
210.3.172.38	A	ns2.ipartnerhk.com
210.3.172.114	PTR	static-bbs-114-172-3-210-on-nets.com
210.3.172.114	A	hkpmta.com
210.3.172.114	A	mail.ys24k.com
210.3.172.122	PTR	static-bbs-122-172-3-210-on-nets.com
210.3.172.122	A	mail.lkfproperties.com
210.3.172.130	PTR	static-bbs-130-172-3-210-on-nets.com
210.3.172.130	A	nudeisrude.com
210.3.172.130	A	hostmaster.bigevents.hk
210.3.172.134	A	ns.13090.20160423.deleted.gkg.net
210.3.172.134	A	yanyu.com
210.3.172.134	A	metstonwood.com
210.3.172.170	A+PTR	mx1.ourtx.biz
210.3.172.218	PTR	static-bbs-218-172-3-210-on-nets.com
210.3.172.218	A	buddies.hk
210.3.172.218	A	ns1.buddies.hk
210.3.172.222	PTR	static-bbs-222-172-3-210-on-nets.com
210.3.172.222	A	mail.carthy.net
210.3.172.222	A	bizipartner.com
210.3.172.234	PTR	static-bbs-234-172-3-210-on-nets.com
210.3.172.234	A	www.cheng-co.com
210.3.172.234	A	cheng-co.com
210.3.173.62	A	mail.yt-lippo.com
210.3.173.118	A	kwan.co
210.3.173.170	A	easyliving.com.hk
210.3.173.170	A	beatricemok.com
210.3.173.170	A	www.partner.hk
210.3.173.199	PTR	static-bbs-199-173-3-210-on-nets.com
210.3.175.5	A	www.hclions.edu.hk
210.3.175.126	PTR	static-bbs-126-175-3-210-on-nets.com
210.3.175.180	PTR	static-bbs-180-175-3-210-on-nets.com
210.3.175.180	A	mail.btg.com.hk
210.3.175.181	PTR	static-bbs-181-175-3-210-on-nets.com
210.3.175.198	PTR	static-bbs-198-175-3-210-on-nets.com
210.3.175.198	A	mail.rg-inv.com
210.3.175.198	A	mail.kilmorey.com.hk
210.3.175.211	PTR	static-bbs-211-175-3-210-on-nets.com
210.3.175.211	A	www.vighk.com
210.3.175.228	PTR	static-bbs-228-175-3-210-on-nets.com
210.3.175.228	A	www.cre8corp.com