Sure : trading brand of Batelco, is a telecommunications company in the Isle of Man, Jersey, Guernsey, the Falkland Islands, St. Helena, Ascension Island, and the British Indian Ocean Territory. Sure is the largest tri-island mobile operator across the Channel Islands and Isle of Man.The international division of Cable & Wireless plc bought Guernsey Telecoms from the States of Guernsey in 2002, rebranding as Sure in July 2007. Cable & Wireless opened an office in Jersey in 2004, offering corporate telecoms products. It launched the Sure brand along with mobile services in September 2006. In the same year the company launched fixed line products (FirstDial Home and Business, later re-branded as Sure Dial Home & Business). In July 2007 Sure launched mobile services in the Isle of Man. In 2008 the company secured a fixed licence and introduced fixed line products (SureDial Home & Business), as well as High Speed Mobile Broadband utilising HSDPA technology. It launched fixed broadband services in the third quarter of 2009.Sure became part of Cable & Wireless Communications in 2010 following a corporate split of Cable & Wireless plc, and was purchased by Batelco Islands Limited in 2013. The company has the largest market share of mobile, landline and broadband customers in the Bailiwick of Guernsey, which incorporates the islands of Guernsey, Herm, Alderney and Sark.GSM-900.