As others mentioned, this is using LoRaWAN radios, which are typically stated as having a range of around ten miles. Here is a group that's trying to build up a

As others mentioned, this is using LoRaWAN radios, which are typically stated as having a range of around ten miles. Here is a group that's trying to build up a worldwide LoRa network that's free and open: https://thethingsnetwork.org/ https://thethingsnetwork.org/