The free version of Netstat is ad-supported, so after about 10 seconds your phone will connect to the web for ads. In your case, it looks like amazonaws.com is where AdMob ads are coming from.
The connection to scnet.net could be anything. Perhaps it's from an app you recently opened? Double-click your home button to bring up a list of recent apps. If you hold down on an app icon, you will get an option to kill it, and this will eliminate its network connections.