Robtex

Up: 210.3.140.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 210.3.142.0/24
Down right: 210.3.143.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.3.142.6	PTR	static-bbs-6-142-3-210-on-nets.com
210.3.142.6	A	als.i234.me
210.3.142.26	A	firstgreen.org
210.3.142.70	A+PTR	mail.airtophk.com
210.3.142.70	A	airtophk.com
210.3.142.98	PTR	static-bbs-98-142-3-210-on-nets.com
210.3.142.98	A	lhk95.com
210.3.142.102	A	pop.techni-photo.com
210.3.142.102	A	www.techni-photo.com
210.3.142.102	A	techni-photo.com
210.3.142.114	PTR	static-bbs-114-142-3-210-on-nets.com
210.3.142.114	A	mail.lonelybuddies.com
210.3.142.114	A	lonelybuddies.com
210.3.142.130	PTR	static-bbs-130-142-3-210-on-nets.com
210.3.142.130	A	mail.packpackgood.com
210.3.142.130	A	packpackgood.com
210.3.142.134	A	mail.manley.com.hk
210.3.142.170	PTR	static-bbs-170-142-3-210-on-nets.com
210.3.142.170	A	asiaprnt.com.hk
210.3.142.234	PTR	static-bbs-234-142-3-210-on-nets.com
210.3.143.6	A	mx2.hkbbq.com
210.3.143.26	PTR	static-bbs-26-143-3-210-on-nets.com
210.3.143.26	A	mail.apexhkg.com
210.3.143.70	A+PTR	mail.waterland.com.hk
210.3.143.70	A	www.waterland.com.hk
210.3.143.86	PTR	static-bbs-86-143-3-210-on-nets.com
210.3.143.86	A	mail.wah-tai.com
210.3.143.86	A	mail.linings.com
210.3.143.106	PTR	static-bbs-106-143-3-210-on-nets.com
210.3.143.118	PTR	static-bbs-118-143-3-210-on-nets.com
210.3.143.174	PTR	static-bbs-174-143-3-210-on-nets.com
210.3.143.174	A	webmail.innoverz.com
210.3.143.182	A	mail.radiancejewellery.com
210.3.143.206	A	smtp-gw.sinostarconcept.com
210.3.143.206	A	smtp.ltycpa.com
210.3.143.222	A	grandsuccess.com.hk