Lost Signals · May 2025
One Thousand Numbers
The numbers station that broadcast for 35 years and never spoke
For about thirty-five years, if you had a shortwave receiver and knew where to look, you could listen to two bars of an English folk tune play twelve times, followed by a woman’s voice reading two hundred groups of five numbers, and then nothing until the next hour.
It ran every day, eleven times a day, from noon to ten at night. It stopped in July 2008. Nobody has ever officially said what it was.
What you heard
The tune was ‘The Lincolnshire Poacher’, a nineteenth-century song about taking hares off somebody else’s land, rendered on what sounds like a synthesised organ. Listeners named the station after it, because there was nothing else to call it.
After the tune came a five-figure header, read ten times. That went on for ten minutes. Then six tones, and then exactly two hundred groups of five digits, in a synthesised female voice with an English accent, the last number of each group lifted slightly at the end. At forty-five minutes past the hour the tune played once more and the transmitter went quiet.
Enthusiasts catalogued it as E03. Its sister station, identical in format and broadcasting to Asia from Guam and later from a place in the Northern Territory called Humpty Doo, used bars of ‘Cherry Ripe’ and was catalogued E03a.
Why the numbers are unbreakable
The design is elegant and about a century old.
A one-time pad is a page of random digits, of which exactly two copies exist: one held by the sender, one by the recipient. You add your message to the pad, digit by digit, and transmit the result. The recipient subtracts the same page and reads the message. Then both copies of that page are destroyed.
Provided the pad is truly random and never reused, the transmission is not merely hard to break. It is mathematically impossible to break, because every possible message of the right length is an equally valid decryption. You either have the page or you do not.
Which explains the two hundred groups. It is always two hundred, whether or not there is anything to say. A station that transmitted only when it had traffic would tell an observer, by its silence and its sudden bursts, exactly when something was happening. A station that transmits a fixed volume of numbers every hour of every day for decades tells an observer nothing at all. Most of what the Lincolnshire Poacher broadcast was almost certainly meaningless padding.
Where it came from
What exists is amateur direction-finding.
Enthusiasts triangulating the signal through the eighties and nineties put the transmitter at RAF Akrotiri in Cyprus, on the British sovereign base, where several curtain antennas were identified. Earlier transmissions are believed to have come from the government communications centre near Gawcott in Buckinghamshire. The operator is generally assumed to be the Secret Intelligence Service, and Akrotiri is a good place to put a transmitter aimed at the eastern Mediterranean, the Middle East and what used to be the Soviet bloc.
None of that is proof. It is a set of very consistent inferences by hobbyists with aerials.
The listener
Consider the position of the intended listener.
They are somewhere they should not be. They cannot carry a radio that looks like anything unusual, cannot receive anything that requires a dish or a satellite handset, cannot log into anything, cannot leave a trace. What they can do is own an ordinary shortwave set, of the sort millions of people owned for listening to the World Service, and tune it at a particular hour.
The system is undetectable at the receiving end because there is nothing to detect. A radio does not report what it is tuned to. Everyone in the country can hear the transmission, and only one person has the page.
The end
The Lincolnshire Poacher went off air in July 2008. Cherry Ripe kept going until December 2009 and then stopped too.
Numbers stations have thinned out considerably since the Cold War, but they have not gone, and the reason is the same reason they existed in the first place. Every modern alternative — the phone, the app, the encrypted channel — puts a record somewhere. A person receiving a shortwave broadcast leaves nothing on any system anywhere.