2RN
2RN was the first radio broadcasting station in the Irish Free State. It began broadcasting on 1 January 1926 and continued until 1933, when it was succeeded by Radio Athlone (later Radio Éireann; now known as RTÉ Radio). The station was run by the Irish Post Office, under the Department of Posts and Telegraphs and first transmitted from 1 January 1926 from Little Denmark Street until 1928 when they moved to the GPO.
The station's name has since been repurposed by Raidió Teilifís Éireann for the identity of their broadcasting network (formerly RTÉ Transmission Network Ltd) since 2013.