O2 (Ireland)
Telefónica Ireland is a broadband and telecommunications provider in Ireland. The company is marketed and trades as O2 (typeset as O2). Esat Digifone was its previous name when it was owned by Esat Telecommunications (and Telenor) from 1997 to 2006. In 2006, the company was acquired by Telefónica, which is a subsidiary of Telefónica Europe.
Read more about O2 (Ireland): Current Services, Criticism