Although I'm not an expert when it comes to this, I highly doubt the MAC address gave it away. Every physical device connected to the internet has a MAC address and there 281,474,976,710,656...

I have no idea where to find it, only knowledge that my provider knew I used the tp-link router, instead of a regular mobile. That's why I want to change it.

Model : Hardware Version : Firmware Version : ISP : Hi, My mobile provider noticed that it said "TP-Link Router", or whatever it said, when looking at the registered device id. That bums me out quite...