2BE was the call sign of the first official radio station to broadcast in Northern Ireland. Operated by the British Broadcasting Company (later the British Broadcasting Corporation), it started transmissions from Belfast on 15 September 1924 using a wavelength of 435 m (689 kHz). It was originally broadcast from Linenhall Street in Belfast. On 20 March 1936 the Belfast transmitter was replaced by a new, more powerful transmitter broadcasting from Lisnagarvey on a wavelength of 307 m (977 kHz), the service having been renamed as the Northern Ireland Regional Programme on 6 January 1935.