Vodafone Ireland is part of Vodafone Group, one of the world’s largest mobile communications companies by revenue with approximately 403 million customers in its controlled and jointly controlled markets as of 30 September 2013. Since entering the Irish market in May 2001 Vodafone has made significant investments in its network. Vodafone is the single biggest investor in new technology in the Irish telecoms industry annually, with over €900 million spent building and maintaining its network. Such innovation means Vodafone Ireland has been the first to launch a number of leading edge technologies onto the Irish market. These include opening Ireland’s first 3G network in May 2003, delivering mobile broadband speeds of up to 21Mbps through HSPA+ technology in February 2010 and more recently the launch of HD Voice which enables the clearest voice call experience yet.