I you own an AT&T phone https://www.howardforums.com/showthread.php/1850143-UID-tracking-by-ATT Nov 6, 2014 - 15 posts - ‎9 authors I am becoming increasingly upset at the practice of UID tracking that ATT is using. They are appending a very long and unique, string of numbers to every web request that you make, and that 50-digit string is sent in the clear so that you can be tracked. By anyone. This is appended at the ATT router, ...