Sri Lanka is the first country to sign up for Google Loon

Sri Lanka is the first country to sign up for Google Loon. "Hopefully in a few months every person and every device on the island will be covered by 3G" Deputy Economic Policy Minister Harsha de Silva said. Each balloon could cover about 5,000 square km with 3G and with a little over a dozen the country could be covered. 
Project Loon is a project being developed by Google with the mission of providing Internet access to rural and remote areas.. The project uses high-altitude balloons placed in the stratosphere at an altitude of about 32 km (20 mi) to create an aerial wireless network with up to 3G-like speeds. It was named Project Loon, since Google itself found the very idea of providing internet access to the remaining 5 billion population unprecedented and "crazy."
The balloons are maneuvered by adjusting their altitude to float to a wind layer after identifying the wind layer with the desired speed and direction using wind data from the National Oceanic and Atmospheric Administration (NOAA). Users of the service connect to the balloon network using a special Internet antenna attached to their building.
The signal travels through the balloon network from balloon to balloon, then to a ground-based station connected to an Internet service provider (ISP), then onto the global Internet. The system aims to bring Internet access to remote and rural areas poorly served by existing provisions, and to improve communication during natural disasters to affected regions.