^^^
I posted this thread last month. Your post reminded me of also asking why AC can't do this
http://www.flyertalk.com/forum/air-c...-tracking.html
Also, I read this today:
"We’ve all been there — standing at the baggage claim carousel impatiently wondering why our bags are taking so long to arrive. Delta hopes to take some of the guessing out of this situation with an exciting new feature in its mobile app. When you open the Fly Delta app you can now track your checked luggage’s location. Delta has started using bag tags with RFID technology, which transmits real-time data to the app and will tell you your bag’s last scanned location."
http://thepointsguy.com/2016/10/delt...track-luggage/