For example, I'm sitting on my front porch this morning. A neighbor lady is across the street and neighbors are home in the houses next to mine.
I did a bluetooth scan and here are the results in the attached screenshot. You can see that it picked up 4 unrecognized numerical codes.
I then entered the first one into an online Bluetooth registry database. And no results found.
"MAC addresses usually are written in the six groups of two hexadecimal digits separated by colons
) or hyphens (-), e.g. e8:04:62:90:07:62, 00-1E-37-18-50 DB.
It is also used in another form (e.g. vendor Cisco) - the three groups of four hexadecimal digits separated by dots (.), e.g. 0016.4d2e.7d10"