Congratulations, if you use Verizon, AT&T, Bell Canada, Bharti Airtel, Cricket, Telefonica de Espantilde;a, Viettel Peru S.a.c., Vodafone NL or Vodafone Spain as your provider your browsing is being tracked and there is nothing you can do about it.  These providers have assigned your device a unique token which the provider injects into every HTTP request your device makes, the cookie is actually external to your device and so you have no way to remove it.  You will see targeted ads based on your browsing no matter how many times you remove cookies or even factory reset your phone.  Verizon has now made it an opt-out feature and The Register has been told that AT&T no longer injects the 'super cookie' into headers but based on businesses recent behaviour it is probably because they have found a better way to track you.

"At least nine telcos around the world are using so-called super-cookies to secretly monitor citizens' online behavior, according to a new study."

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