The Seoul Metropolitan Government on Monday announced plans to expand its Wi-Fi network across the city by 2022, providing free Wi-Fi service to Seoul residents and visitors. With the move, the metropolitan area covered by the city's free Wi-Fi is expected to increase from 31 percent to 100 percent in key public and residential areas, according to the city government. The city plans to set up 23,750 wireless access points by 2022, tripling the number of wireless access points from the current 7,420.