Cable & Wireless Worldwide PLC (CW.) (informally Cable & Wireless ) is a global telecommunications company headquartered in Bracknell, United Kingdom. It specialises in providing communication networks and services to large corporates, governments, carrier customers and resellers. Its services include managed Voice, Data and IP based services and applications across the UK, Asia Pacific, India, Middle East & Africa, Continental Europe and North America.
The origins of Cable and Wireless lie in a number of British telegraph companies founded in the 1860s. In 1928 the communications operations of the British Empire were merged into a single operating company, initially known as the Imperial and International Communications Ltd, which became Cable and Wireless Limited in 1934. In the mid-1980s, Cable and Wireless became the first company in the UK to offer an alternative telephone service to British Telecom (via subsidiary Mercury Communications, merged into C&W in 1997). The company later offered cable TV to its customers, but it sold its cable assets to NTL in 2000.
Cable & Wireless is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index.