The Luke Johnson Phone Experiment was started by 27-year-old Arizona resident Luke Johnson. On September 18, 2006, Johnson posted a self-made video on YouTube inviting the world to call him on his cell phone. The stated purpose of the experiment was to see how many people will call someone they have never met. 
Since the inception of the experiment, Johnson received calls from around the planet. As of April 19, 2007, he received 136,768 telephone calls. Owing to the popularity of his experiment, he was featured on CNN, NPR, BBC News 24, The Rachael Ray Show, The Today Show, the Art Fennell show, several local news channels, a number of national and international newspapers, magazines, and radio stations. He was offered a role as pitchman for Cricket Communications, as well as other opportunities.