Yes, you can!
Please log in to the Chipolo web app with your Chipolo account, and you will see your phone's last known location.
In addition to seeing your phone's last known location, you can also make it ring or send a message to it.
NOTE: You need to have your phone displayed in Chipolo app for this feature to be available. Check "How to enable your phone to be displayed in the Chipolo app?" article for step-by-step instructions.