Twitch servers and video stutter

kiwical

I'd like to know where the servers are located, Im in New Zealand and at night twitch is almost impossible to watch even at 360p I use Networx to monitor the bandwidth and when i try and watch 720p streams my speed doesnt even go over 100Kb/s and as far as i know you atleast need 200Kb/s plus to have the stream run smooth. So just wondering if there is issues with certain servers i would just like to know where servers are so i can ping or tracert servers, i already told my ISP they said its nothing to do with there end and said its twitch's end.