IP address of test location

[kds]

[Couldn't seem to find a better location for this subject..]

Is there a list of the IP addresses of the test locations? Or can I trust that the first (public) IP address listed on a tracert from a test location is the IP address of the test location?

I have searched the forums and the wiki without any luck.

I need this because I submitted a support case with a CDN vendor on a case where content was not fetched from the nearest CDN PO (Singapore) even though I was testing from the Singapore test location.

Thanks in advance,
Kenneth