LONDON -- The UK is leading the global wi-fi boom, with its existing estate of more than 18 million hotspots set to increase to 21 million by 2015, according to industry experts, Informa Telecoms & Media.

The findings come as the UK wi-fi industry celebrates its tenth anniversary and BT, which was among the first providers to supply wi-fi in Britain, today announcing that its BT Fon and BT Openzone wi-fi services will be rebranded to BT Wi-fi in a move to make it easier for users to find a hotspot and get online.

BT is one of the largest of the world’s wi-fi providers. Its business and consumer broadband customers have free access to one of the world’s biggest wi-fi networks of more than six million hotspots in more than 100 countries. An incredible 21,000 people log on to BT Wi-fi every minute during peak times and more than one billion wi-fi minutes were used over the last three months on BT Wi-fi.

BT Group plc (NYSE: BT; London: BTA)