The chip is what matters, not the board. There is no list your board has to be on. Open your project and the agent reads it: your devicetree, your Kconfig, your build settings, and the hardware you have connected.
Nordic
Built with the nRF Connect SDK and Zephyr.
Two device tools come with the cellular parts: a board shell that sends AT and Zephyr shell commands and reads until the board finishes answering, and a modem trace that decodes why a modem will not attach, including whether it found cells and never joined or saw nothing at all.
Espressif
Built with ESP-IDF.What we are adding
More chips and more radio technology. That work happens at the chip level, because every board built on those chips inherits it: nRF7x Wi-Fi, on-device AI on nRF54 and ESP32, LoRa, and Linux hosts with cellular hats. See the roadmap. If a chip you use is missing, tell us. That is the most useful thing you can send.Some devices go further
On a few boards the work is already done: pinouts, which card carries which radio, which connector programs which chip, written down and tested. Those are boards whose makers publish their designs and work with us.Partner open hardware
Why published designs make this possible, the boards it covers today, and what it would take to add yours.