Devices
A device is a thing that sends and receives messages: an Iridium modem with an IMEI, an Android phone running the app, a Meshtastic node reached through a bridge.
Registering one
Open Devices and add it. An IMEI is required; a label is not, but a device called 300234065000001 is hard to recognise on a map at three in the morning, so give it a name.
Bridges register their own devices. When a bridge reports a device it has not seen before, the Hub adds it for you.
What counts against your plan
Devices and bridges share one number. Two bridges and two phones fills the free plan of four.
Markers that the TAK integration mirrors in do not count. They arrive on their own from a TAK server, nobody bought them, and billing you for a busy TAK feed would charge you for traffic you did not create.
If you are at your limit, registering the next device is refused with a message saying so. Everything already registered keeps working. See Accounts and plans.
Removing one
Deleting a device frees its place immediately. Its message history stays until you delete that separately; see Your data.

