Robtex

Up: 203.126.8.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.126.12.0/23
Down right: 203.126.14.0/23

IP	Type	Hostname
203.126.12.12	PTR	www.psa.com.sg
203.126.12.13	A+PTR	psa2mail3.psa.com.sg
203.126.12.13	A	portnethub.portnet.com
203.126.12.15	A+PTR	psa2mail4.psa.com.sg
203.126.12.67	A	www.psa.com.sg
203.126.12.70	A	www.singaporepsa.com
203.126.12.71	A	www.psa-institute.com
203.126.12.130	A	www.portnet.com
203.126.12.138	A	mail.portnet.com
203.126.12.145	A	png2mail1.portnet.com
203.126.12.158	A+PTR	png2dns2.psa.com.sg
203.126.12.158	A	psa.com.sg
203.126.12.163	A	login.portnet.com
203.126.12.165	A	www.psawms.com
203.126.14.194	A	lutetium.unisim.edu.sg
203.126.14.194	A	lutetium.suss.edu.sg
203.126.15.117	PTR	www.hsuenchow.com.sg
203.126.15.117	A	hsuenchow.com.sg
203.126.15.118	A+PTR	mail.hsuenchow.com.sg
203.126.15.210	A	ushape.org