Robtex

Up: 163.171.140.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 163.171.141.0/25
Down right: 163.171.141.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
163.171.141.124	A	nor.livesdkedge.ourdvs.com
163.171.141.127	A	fgipv6.download.windowsupdate.com.mwcname.com
163.171.141.127	A	fg.download.windowsupdate.com.mwcname.com
163.171.141.127	A	dl.delivery.mp.microsoft.com.mwcname.com
163.171.141.128	A	poss-videocloud.cns.com.cn.wsdvs.com
163.171.141.128	A	ssv2.travodmixss.ourdvs.com