From the Vodafone report [0], UK section: > Section 19 of the Regulation of Investigatory Powers Act 2000 prohibits disclosing the existence of any lawful inte

From the Vodafone report [0], UK section: > Section 19 of the Regulation of Investigatory Powers Act 2000 prohibits disclosing the existence of any lawful interception warrant and the existence of any requirement to provide assistance in relation to a warrant. This duty of secrecy extends to all matters relating to warranted lawful interception. Data relating to lawful interception warrants cannot be published. Accordingly, to publish aggregate statistics would be to disclose the existence of one or more lawful interception warrants. This makes it pretty clear the UK prohibits disclosure. Sorry. [0] http://www.vodafone.com/content/sustainabilityreport/2014/index/operating_responsibly/privacy_and_security/law_enforcement/country_by_country.html http://www.vodafone.com/content/sustainabilityreport/2014/in... edit: I think you can safely assume your phone calls are being monitored no matter what country you are in or who your phone company is.