Robtex

Up: 203.185.56.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.185.56.0/25
Down right: 203.185.56.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.185.56.37	PTR	proxy1.zpub.incnets.com
203.185.56.37	A	mail.cyberport.corp.com.hk
203.185.56.37	A	bbmail.com.hk
203.185.56.38	PTR	proxy2.zpub.incnets.com
203.185.56.38	A	mail.cyberport.corp.com.hk
203.185.56.38	A	bbmail.com.hk
203.185.56.40	A+PTR	mtai11.zpub.incnets.com
203.185.56.40	A	mx1.cyberport.corp.com.hk
203.185.56.40	A	mail.bbmail.com.hk
203.185.56.41	A+PTR	mtai12.zpub.incnets.com
203.185.56.41	A	mx1.cyberport.corp.com.hk
203.185.56.41	A	mail.bbmail.com.hk
203.185.56.44	A+PTR	mtao11.zpub.incnets.com
203.185.56.44	A	mtao1.zpub.incnets.com
203.185.56.45	PTR	mtao12.zpub.incnets.com
203.185.56.45	A	mtao1.zpub.incnets.com
203.185.56.48	PTR	203185056048.static.ctinets.com
203.185.56.48	A	bbmail.com.hk
203.185.56.49	PTR	203185056049.static.ctinets.com
203.185.56.49	A	bbmail.com.hk
203.185.56.50	PTR	203185056050.static.ctinets.com
203.185.56.50	A	mail.bbmail.com.hk
203.185.56.51	PTR	mtai12n.zpub.incnets.com
203.185.56.51	A	mail.bbmail.com.hk
203.185.56.132	A	203185056132.static.ctinets.com
203.185.56.151	A	mcdwifi.y5zone.net
203.185.56.151	A	hotspot4.y5zone.net
203.185.56.152	PTR	203185056152.static.ctinets.com
203.185.56.152	A	wifi5.hkbn.net
203.185.56.156	PTR	203185056156.static.ctinets.com
203.185.56.156	A	www.y5zone.net