The number belongs to the United States. The most prominent features of these numbers are: 1- No one can track the number at all. 2- No names associated with the number. 3- You can call from it infinitely. 4- It's anonymous and permanent for life. It's a self-contained SIM or a dedicated app. It receives calls and you can make calls. It can be linked to all applications (all without exception). For sale to the highest bidder. I've been using it for 4 months.