[threepio]

> Mine report as “With you” so perhaps they don’t advertise themselves in this state.

So you know for certain that AirTags have multiple broadcast states (e.g., "with me" vs. not)? Apple's description makes it sound like they only have one state:

"Your AirTag sends out a secure Bluetooth signal that can be detected by nearby devices in the Find My network." [1]

[1] https://www.apple.com/airtag/

[reasonabl_human]

The air tag just broadcasts location, the ‘with you’ state is generated within Find My iPhone, recognizing that the airbag is in the same location as your phone. That, and signal strength for locating the device.