Concealing your cellphone quantity when making calls is a method generally known as “quantity blocking.” It is like sending a letter anonymously, however with cellphone calls.
Quantity blocking has a protracted historical past, relationship again to the early days of telephony. It grew to become fashionable within the Nineteen Nineties, when caller ID grew to become widespread. Quantity blocking is helpful for safeguarding your privateness, avoiding undesirable calls, and pranking associates.