See the Stream URLs page for all stream URLs you can use.
If you have subscribed to different rates for different sizes of space, use the tabs at the top of the page to first select the rate you want to use for your Sonos sound reinforcement.
If you want to use multiple URLs with Sonos in turn, save all URLs you want to use in your text file. To do this, select the URL(s) you want to save in the Sonos app one at a time, copy the URL to your cache and paste it into the text file. Once all of the URLs are pasted, you should save the text file.