BT Communications (Ireland) Limited is a telecommunications and internet company in Ireland. It is a subsidiary of BT Group plc. History. Esat Telecom. The company was founded in 1990 by a consortium headed by business magnate Denis O'Brien and was originally known as Esat Telecom. The name Esat, said to be an abbreviation of "Éireann Satellite" and connected to O'Brien's bid for Ireland's communications satellite licence under the 1977 ITU frequency plans, would become much more associated with telecommunications in Ireland, however.
https://en.wikipedia.org/wiki/BT_Ireland
BT Communications (Ireland) Limited is a telecommunications and internet company in Ireland. It is a subsidiary of BT Group plc. History. Esat Telecom. The company was founded in 1990 by a consortium headed by business magnate Denis O'Brien and was originally known as Esat Telecom. The name Esat, said to be an abbreviation of "Éireann Satellite" and connected to O'Brien's bid for Ireland's communications satellite licence under the 1977 ITU frequency plans, would become much more associated with telecommunications in Ireland, however.
