TIL about Sigfox, a global network operator founded in 2010 that built wireless networks to connect low-power devices over large areas and to reach underground objects. As of November 2020, the network covered a total of 5.8 million square kilometers in 72 countries

https://en.wikipedia.org/wiki/Sigfox
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1g056og/til_about_sigfox_a_global_network_operator/