As of January 17, 2023 - the Boron LTE is now powered by EtherSIM, Particle's new globally available, self-optimizing SIM with no data plans or device fees. Particle's Free Plan supports up to 100 devices, cellular data, and fully-featured platform access with no time limit. https://elecena.pl/product/17502128/particle-boron-lte-nrf52840-with-mesh-and-lte-cellular-modem 2021-04-07 https://elecena.pl/product/17502128/particle-boron-lte-nrf52840-with-mesh-and-lte-cellular-modem 2023-04-01