While US spooks are supposed to be spying on foreigners, it appears that the few companies that are free from PRISM spying are those which have ownership from outside the country.

T-Mobile US and Verizon Wireless do not directly contribute to the controversial US surveillance program, partly due to their overseas ownership ties. Apparently the NSA thought it was too much like hard work to do all the legal paperwork turn these two foreign companies over to the dark side and did not bother. This means if you are a criminal or terrorist it is better to use T-Mobile or Verizon.

T-Mobile is majority-owned by Germany's Deutsche Telekom, while Verizon Wireless is a joint venture between Verizon Communications and Britain's Vodafone. The chances of the two companies' networks not being monitored are small because most calls at some point pass through networks controlled by US companies that do work with the NSA.