ctldl.windowsupdate.com is an alias for ctldl.windowsupdate.com.delivery.microsoft.com.
ctldl.windowsupdate.com.delivery.microsoft.com is an alias for
wu-b-net.trafficmanager.net.
wu-b-net.trafficmanager.net is an alias for download.windowsupdate.com.edgesuite.net.
download.windowsupdate.com.edgesuite.net is an alias for a767.dspw65.akamai.net.
a767.dspw65.akamai.net has address 23.209.125.25
a767.dspw65.akamai.net has address 23.209.125.24