In 1984, the Minister for Posts and Telegraphs was split into Telecom Éireann and An Post.
In 1999, Telecom Éireann was privatised and renamed Eircom.
On September 16, 2015, Eircom was rebranded as 'eir' by Moving Brands . The rebranding cost €16 million, which included changing the logos on uniforms, vehicles, and stores, making it the largest rebrand in Irish corporate history in over 20 years. All of Eircom's services (with the exception of Meteor) adopted the 'eir' name.