The broadband provider has launched new hotspots along the river Themes and has more live inside the Olympic Park. A total of 200,000 hotspots were added over the last three months to achieve the target in time for the opening ceremony.
Andy Baker, CEO of Wi-fi at BT said: "We’re giving Londoners and visitors as many places as possible to get online, keep in touch, work and share their experiences of the exciting events happening across London."
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BT home and business broadband customers, and more through other BT partnership agreements, can use the hotspots for free. More than one billion Wi-Fi minutes were used over the last three months on BT Wi-fi, said the firm.
The firm has created 1,000 access points inside the Olympic Park making it the largest-ever public high density Wi-Fi deployment. Wi-Fi access is available inside nine Olympic venues including the Olympic Stadium, the Aquatics Centre, the Velodrome and across all the public areas of the Olympic Park in east London.
BT made its public commitment to have half a million hotspots in place for the Games back in September 2011.