Hello,
I just wanted to know if the physical SIM Card ( Imei) is connected to the buyer ?
Or is the usage completely anonymous and each physical SIM card can’t be backtracked to its buyer?
What?
A physical (or virtual) SIM card is registered to your cellular account. They are ICCIDs not IMEIs.
They are directly associated to their owner.. Burners do exist but I'm not sure burners are big in the data area, more for calls and SMS.
The IMEI is unique to the User Equipment (e.g., a cellular router or mobile phone) and is generally not tied to an individual.
The ICCID is unique to the SIM card and may be associated with an individual, depending on the regulations in the country/region where the SIM card was purchased (for example, in countries/regions that require real-name registration).