This week I use traceroute under Wifi network at home and school, and mobile network. I tested Zhihu.com, Wechat.com, Google.com, Adafruit.com, Amazon.com.
Following is the screenshot of traceroute of Zhihu.com.
Comparing all those route, every time I access information from the internet, my request would goes to my internet supplier first, and then connect to another 2 or 3 or more internet cable companies. There are 10 ~ 20 nodes I have to pass.
Take my Wifi network as an example, no matter which website I try to access, I have to go through 3 TWC network Autonomous System (AS) until AS19548 to really connect to Internet. Same as my mobile network, I would have to access AS7018, one of AT&T inc’s system, to get connected. And next step is jump to the AS the where the website server connected.