Robtex

Up: 20.139.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 20.139.48.0/21
Down right: 20.139.56.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
20.139.51.1	A+PTR	cgenfwdhkg-3i3d301.asia.csc.com
20.139.51.5	A+PTR	csc-hkgssl0010.asia.csc.com
20.139.56.0	A	appspot.com--www.sideju.com
20.139.56.0	A	appspot.com--www.894449.com
20.139.56.0	A	appspot.com--www.90guimi.com