“Numbers stations have been in existence since World War I. Over the years they have attracted sporadic interest from journalists, video game designers, and filmmakers. Despite this attention, there are few explanations of what these signals actually are. Too often, they are described as “spooky,” “creepy,” or “mysterious,” and the discussion stops there. It may be disappointing to some, but these stations are not signals from aliens or mind control devices, nor are they dead relics of the Cold War — rather, these stations are part of the sophisticated work of intelligence agencies and militaries, and they are very much still on the air. This article will explain what they are, how to listen to them, and why they matter.”
—Māris Goldmanis. “Explaining the ‘Mystery’ of Numbers Stations.” War on the Rocks. May 24, 2018.