Robtex

Up: 203.123.10.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.123.11.0/25
Down right: 203.123.11.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.123.11.1	PTR	1.203-123-11.ilabs.com.sg
203.123.11.5	PTR	5.203-123-11.ilabs.com.sg
203.123.11.7	PTR	7.203-123-11.ilabs.com.sg
203.123.11.12	A	sg.ilabs.com.sg
203.123.11.13	PTR	13.203-123-11.ilabs.com.sg
203.123.11.13	A	panasiamarine.com
203.123.11.13	A	autocare.com.sg
203.123.11.14	PTR	14.203-123-11.ilabs.com.sg
203.123.11.14	A	davjones.com
203.123.11.14	A	propertybids.com
203.123.11.15	PTR	ilabs.co.za
203.123.11.15	A	ilab.com.cn
203.123.11.15	A	jcgirls.com
203.123.11.16	PTR	mail.hosting.com.sg
203.123.11.16	A	pop.kodaltd.com.sg
203.123.11.16	A	mail.naturerise.com
203.123.11.17	A+PTR	mx2.hosting.com.sg
203.123.11.17	A	merak.hosting.com.sg
203.123.11.18	PTR	mx.hosting.com.sg
203.123.11.18	A	webmail.sg
203.123.11.18	A	www.webmail.sg
203.123.11.58	PTR	58.203-123-11.ilabs.com.sg
203.123.11.67	PTR	www.caviar.com.sg
203.123.11.67	PTR	67.203-123-11.ilabs.com.sg
203.123.11.88	PTR	88.203-123-11.ilabs.com.sg
203.123.11.113	PTR	113.203-123-11.ilabs.com.sg
203.123.11.113	A	www.help.sg
203.123.11.137	PTR	137.203-123-11.ilabs.com.sg
203.123.11.147	PTR	147.203-123-11.ilabs.com.sg
203.123.11.201	A	ns1.hosting.com.sg
203.123.11.202	PTR	ns2.ilabs.com.sg
203.123.11.202	A	ns2.hosting.com.sg
203.123.11.207	PTR	ns1.diyregistrar.com
203.123.11.208	PTR	ns2.diyregistrar.com
203.123.11.224	PTR	224.203-123-11.ilabs.com.sg
203.123.11.224	A	naturerise.com
203.123.11.224	A	redirectors.com
203.123.11.237	PTR	237.203-123-11.ilabs.com.sg