Estonia Eurozone. The European Union Agency for large-scale IT systems is based in Tallinn, which started operations at the end of 2012. Estonia held the Presidency of the Council of the European Union in the second half of 2017. Since the early 1990s, Estonia has been involved in active trilateral Baltic states co-operation with Latvia and Lithuania, and Nordic-Baltic co-operation with the Nordic countries. The Baltic Council is the joint forum of the interparliamentary Baltic Assembly and the intergovernmental Baltic Council of Ministers. Estonia has built close relationship with the Nordic countries, especially Finland and Sweden, and is a member of
Telecommunications in Latvia mobile-cellular subscribership is roughly 150 per 100 persons; the Latvian network is now connected via fiber optic cable to Estonia, Finland, and Sweden (2008). Until 2003 Lattelecom had a monopoly in the fixed telecommunications market. This led to overwhelming use of cellular phones for private customers, fixed lines being requested mostly by companies. In Latvia exist more than 2 million mobile phones but only 644,000 fixed phone connections. Since the fixed-line voice communication monopoly ended on January 1, 2003, several companies entered the market for fixed voice communication services: Aeronavigācijas serviss, Baltcom TV, Beta Telecom, Latvenergo Tehniskais Centrs, OPTRON, Rigatta,