http://35itrxfwbqvoj2tcctlmayjaokvba4ihk6isn3rdlw4njbkphjsktpqd.onion/Cell_phones.html
Each device has a SIM card , and through this SIM card, the
device is in constant connection with the carrier that provides its services. What we do is to use the carrier's network , since this network will always be linked to the device, even if the person has no
active plan at this time, or if the line is cut.