Demon Internet was a British Internet service provider, initially an independent business, later operating as a brand of Vodafone. It was one of the UK's earliest ISPs, offering dial-up Internet access services from 1 June 1992. According to the Daily Telegraph, it "sparked a revolution by becoming the first to provide genuinely affordable access to the internet in the UK". From 1996 to 2006 Demon operated a subsidiary ISP business in the Netherlands. It was sold to KPN in June 2006 and its operations transferred to their XS4ALL subsidiary.