BLUETOOTH SCANNING ON A PLANE - LOADS OF UNKNOWN ADDRESSESDefinitely something to this, have experimented myself and so far unable to debunk.
Will be doing some experiments from remote location soon.
If you want to try...
On Android device:
1) go to settings
2) About phone
3) Tap "Build number" 7 times to enable - "Developer Options"
4) Setting->Developer Options-> Then Enable - Show bluetooth devices without name
This will display bluetooth devices having only mac addresses and no device name
Even a Blind Squirrel makes his own vitamin C.