A numbers station is a type of myth included in Grand Theft Auto V.
A numbers station is a type of shortwave radio station characterized by unusual broadcasts, reading out lists of numbers, or incomprehensible Morse code messages. The voices are often created by speech synthesis and are transmitted in a wide variety of languages. The voices are usually female, although sometimes men's voices are used. Some voices are synthesized and created by machines, however, some stations used to have live readers.
In the 1960s, Time magazine reported that the numbers stations first appeared shortly after World War II and were imitating a format that had been used to send weather data during that war. It is widely assumed that these broadcasts transmit covert messages to spies. The Czech Ministry of Interior and the Swedish Security Service, have both acknowledged the use of numbers stations by Czechoslovakia for espionage, with declassified documents proving the same. With a few exceptions, no QSL responses have been received from numbers stations by shortwave listeners, who sent reception reports to said stations, which is the expected behavior of a non-clandestine station.
Two different numbers stations have been reported in GTA V.
In Blane County, a numbers station supposedly plays when some radio stations transition from the Los Santos to Blaine County stations.
On Mount Gordo, a rarer numbers station supposedly plays when the player is near certain areas on the mountain.